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首页 > 器件类别 > 无线/射频/通信 > 无线收发芯片

A71X05AQFI/Q

器件类别：无线/射频/通信    无线收发芯片   

厂商名称：笙科

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A7105
2.4G FSK/GFSK Transceiver
Document Title
A7105 Data Sheet, 2.4GHz FSK/GFSK Transceiver with 2K ~ 500Kbps data rate
Revision History
Rev. No.
0.0
0.1
0.2
0.3
History
Initial issue.
Modified specification and add section for TX power setting
Add top marking info., reflow profile, Carry tape & reel dimensions
Modify description of state machine and FIFO mode
Rename IRQS1/IRQS2 to GIO1S/GIO2S
Rename GPIO1/GPIO2 to GIO1/GIO2
Add Easy FIFO mode, Segment FIFO mode
Delete thermal sensor function / external voltage measurement
Delete TWWS function
Add State diagram of quick/normal/power saving FIFO mode
Add State diagram of Direct mode
Rename Master Clock F
CSCK
to F
MCLK
Modify data rate support from 1K~500K to 2K ~ 500K
Revise description of state machine and FIFO mode
Remove un-necessary components of application circuit
Add RSSI curve
Add layout guidance
Issue Date
Dec 27 , 2007
Feb 20 , 2008
Oct. 9 , 2008
Jan. 7 , 2009
th
th
th
th
Remark
Preliminary
Preliminary
Preliminary
Preliminary
1.0
N
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August, 2009
Full
Production
Feb., 2010
Full
Production
Full
Production
Full
Production
Full
Production
Full
Production
Nov., 2010
Nov. 30, 2010
Jan., 2011
Feb., 2012
1.1
1.3
1.4
1.5
Change English Company Name
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Important Notice:
AMICCOM reserves the right to make changes to its products or to discontinue any integrated circuit product or service
without notice. AMICCOM integrated circuit products are not designed, intended, authorized, or warranted to be suitable for
use in life-support applications, devices or systems or other critical applications. Use of AMICCOM products in such
applications is understood to be fully at the risk of the customer.
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Revise pin description of VDA1, VDA2, VDA3 in Ch5.
Update block diagram and Ch19.
Correct typo of Ch9, 18h.
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Add note 9 in chapter 8, specification.
Fix typo in below pages (51, 52, 57, 62, 66, 78, 79).
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Revise min. operation voltage from 1.9V to 2.0V
Revise typical TX current (0dBm) from 19mA to 20mA
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Table of Contents
1. General Description .............................................................................................................................................................. 5
2. Typical Applications............................................................................................................................................................... 5
3. Feature ................................................................................................................................................................................. 5
4. Pin Configurations................................................................................................................................................................. 6
5. Pin Description (I: input; O: output, I/O: input or output) ....................................................................................................... 7
6. Chip Block Diagram .............................................................................................................................................................. 8
7. Absolute Maximum Ratings .................................................................................................................................................. 9
8. Electrical Specification ........................................................................................................................................................ 10
9. Control Register .................................................................................................................................................................. 12
9.1 Control register table ................................................................................................................................................. 12
9.2 Control register description ........................................................................................................................................ 14
9.2.1 Mode Register (Address: 00h) ...................................................................................................................... 14
9.2.2 Mode Control Register (Address: 01h) .......................................................................................................... 14
9.2.3 Calibration Control Register (Address: 02h) .................................................................................................. 15
9.2.4 FIFO Register I (Address: 03h) ..................................................................................................................... 15
9.2.5 FIFO Register II (Address: 04h) .................................................................................................................... 15
9.2.6 FIFO DATA Register (Address: 05h) ............................................................................................................. 15
9.2.7 ID DATA Register (Address: 06h) .................................................................................................................... 15
9.2.8 RC OSC Register I (Address: 07h) .................................................................................................................. 16
9.2.9 RC OSC Register II (Address: 08h) ................................................................................................................. 16
9.2.10 RC OSC Register III (Address: 09h) .............................................................................................................. 16
9.2.11 CKO Pin Control Register (Address: 0Ah) ..................................................................................................... 16
9.2.12 GIO1 Pin Control Register I (Address: 0Bh) .................................................................................................. 17
9.2.13 GIO2 Pin Control Register II (Address: 0Ch) ................................................................................................. 18
9.2.14 Clock Register (Address: 0Dh) ...................................................................................................................... 19
9.2.15 Data Rate Register (Address: 0Eh) ............................................................................................................... 19
9.2.16 PLL Register I (Address: 0Fh) ....................................................................................................................... 20
9.2.17 PLL Register II (Address: 10h)....................................................................................................................... 20
9.2.18 PLL Register III (Address: 11h) ...................................................................................................................... 20
9.2.19 PLL Register IV (Address: 12h) ..................................................................................................................... 20
9.2.20 PLL Register V (Address: 13h).................................................................................................................... 20
9.2.21 TX Register I (Address: 14h) ......................................................................................................................... 21
9.2.22 TX Register II (Address: 15h) ........................................................................................................................ 21
9.2.23 Delay Register I (Address: 16h) ..................................................................................................................... 21
9.2.24 Delay Register II (Address: 17h) .................................................................................................................... 22
9.2.25 RX Register (Address: 18h) ........................................................................................................................... 22
9.2.26 RX Gain Register I (Address: 19h) ................................................................................................................ 23
9.2.27 RX Gain Register II (Address: 1Ah) ............................................................................................................... 23
9.2.28 RX Gain Register III (Address: 1Bh) .............................................................................................................. 23
9.2.29 RX Gain Register IV (Address: 1Ch) ............................................................................................................. 23
9.2.30 RSSI Threshold Register (Address: 1Dh) ...................................................................................................... 24
9.2.31 ADC Control Register (Address: 1Eh)............................................................................................................ 24
9.2.32 Code Register I (Address: 1Fh) ..................................................................................................................... 24
9.2.33 Code Register II (Address: 20h) .................................................................................................................... 25
9.2.34 Code Register III (Address: 21h) ................................................................................................................... 25
9.2.35 IF Calibration Register I (Address: 22h)......................................................................................................... 25
9.2.36 IF Calibration Register II (Address: 23h)........................................................................................................ 25
9.2.37 VCO current Calibration Register (Address: 24h) .......................................................................................... 25
9.2.38 VCO Single band Calibration Register I (Address: 25h) ................................................................................ 26
9.2.39 VCO Single band Calibration Register II (Address: 26h) ............................................................................... 26
9.2.40 Battery detect Register (Address: 27h) .......................................................................................................... 26
9.2.41 TX test Register (Address: 28h) .................................................................................................................... 27
9.2.42 Rx DEM test Register I (Address: 29h) .......................................................................................................... 27
9.2.43 Rx DEM test Register II (Address: 2Ah) ........................................................................................................ 28
9.2.44 Charge Pump Current Register (Address: 2Bh) ............................................................................................ 28
9.2.45 Crystal test Register (Address: 2Ch) ............................................................................................................. 28
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9.2.46 PLL test Register (Address: 2Dh) .................................................................................................................. 28
9.2.47 VCO test Register I (Address: 2Eh) ............................................................................................................... 28
9.2.48 VCO test Register II (Address: 2Fh) .............................................................................................................. 28
9.2.49 IFAT Register (Address: 30h)......................................................................................................................... 29
9.2.50 RScale Register (Address: 31h) .................................................................................................................... 29
9.2.51 Filter test Register (Address: 32h) ................................................................................................................. 29
10. SPI .................................................................................................................................................................................... 30
10.1 SPI Format............................................................................................................................................................... 31
10.2 SPI Timing Characteristic ........................................................................................................................................ 31
10.3 SPI Timing Chart...................................................................................................................................................... 32
10.3.1 Timing Chart of 3-wire SPI ............................................................................................................................. 32
10.3.2 Timing Chart of 4-wire SPI ............................................................................................................................. 32
10.4 Strobe Commands ................................................................................................................................................... 33
10.4.1 Strobe Command - Sleep Mode .................................................................................................................... 33
10.4.2 Strobe Command - ldle Mode ........................................................................................................................ 33
10.4.3 Strobe Command - Standby Mode ................................................................................................................. 34
10.4.4 Strobe Command - PLL Mode ....................................................................................................................... 34
10.4.5 Strobe Command - RX Mode ......................................................................................................................... 35
10.4.6 Strobe Command - TX Mode ......................................................................................................................... 35
10.4.7 Strobe Command – FIFO Write Pointer Reset ............................................................................................... 36
10.4.8 Strobe Command – FIFO Read Pointer Reset .............................................................................................. 36
10.5 Reset Command ...................................................................................................................................................... 36
10.6 ID Accessing Command .......................................................................................................................................... 37
10.6.1 ID Write Command ........................................................................................................................................ 37
10.6.2 ID Read Command ........................................................................................................................................ 37
10.7 FIFO Accessing Command ...................................................................................................................................... 38
10.7.1 TX FIFO Write Command .............................................................................................................................. 38
10.7.2 Rx FIFO Read Command .............................................................................................................................. 38
11. State machine ................................................................................................................................................................... 40
11.1 Key states ................................................................................................................................................................ 40
11.1.1 Standby mode ................................................................................................................................................ 40
11.1.2 Sleep mode .................................................................................................................................................... 41
11.1.3 ldle mode ....................................................................................................................................................... 41
11.1.4 PLL mode....................................................................................................................................................... 41
11.1.5 TX mode ........................................................................................................................................................ 41
11.1.6 RX mode ........................................................................................................................................................ 41
11.1.7 CAL mode ...................................................................................................................................................... 42
11.2 Normal FIFO Mode .................................................................................................................................................. 43
11.3 Quick FIFO Mode ..................................................................................................................................................... 45
11.4 Power Saving FIFO Mode ........................................................................................................................................ 47
11.5 Quick Direct Mode ................................................................................................................................................... 49
12 Crystal Oscillator ................................................................................................................................................................ 52
12.1 Use External Crystal ................................................................................................................................................ 52
12.2 Use external clock ................................................................................................................................................... 52
13. System Clock .................................................................................................................................................................... 53
13.1 Bypass clock generation .......................................................................................................................................... 54
13.2 Enable clock generation .......................................................................................................................................... 55
14. Transceiver LO Frequency ................................................................................................................................................ 56
14.1 LO Frequency Setting .............................................................................................................................................. 57
14.2 IF Side Band Select ................................................................................................................................................. 59
14.2.1 Auto IF Exchange .......................................................................................................................................... 60
14.2.2 Fast Exchange............................................................................................................................................... 61
14.3 Frequency Compensation ........................................................................................................................................ 62
15. Calibration......................................................................................................................................................................... 63
15.1 Calibration Procedure .............................................................................................................................................. 63
15.2 IF Filter Bank Calibration ......................................................................................................................................... 63
15.3 VCO Current Calibration .......................................................................................................................................... 63
15.4 VCO Bank Calibration.............................................................................................................................................. 64
16. FIFO (First In First Out)..................................................................................................................................................... 65
16.1 Packet Format ......................................................................................................................................................... 65
16.2 Bit Stream Process .................................................................................................................................................. 66
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16.3 Transmission Time ................................................................................................................................................... 67
16.4 Usage of TX and RX FIFO ....................................................................................................................................... 67
16.4.1 Easy FIFO ..................................................................................................................................................... 69
16.4.2 Segment FIFO ............................................................................................................................................... 69
16.4.3 FIFO Extension .............................................................................................................................................. 72
17. ADC (Analog to Digital Converter) .................................................................................................................................... 76
17.1 RSSI Measurement ................................................................................................................................................. 76
17.2 Carrier Detect .......................................................................................................................................................... 78
18. Battery Detect ................................................................................................................................................................... 79
19 TX power setting ................................................................................................................................................................ 80
20. Application circuit .............................................................................................................................................................. 81
21. Abbreviations .................................................................................................................................................................... 82
21. Abbreviations .................................................................................................................................................................... 83
22. Ordering Information ......................................................................................................................................................... 83
23. Package Information ......................................................................................................................................................... 84
24. Top Marking Information ................................................................................................................................................... 85
25. Reflow Profile .................................................................................................................................................................... 86
26. Tape Reel Information ....................................................................................................................................................... 87
27. Product Status................................................................................................................................................................... 88
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2.4G FSK/GFSK Transceiver
1. General Description
A7105 is a high performance and low cost 2.4GHz ISM band wireless transceiver. This device integrates both high sensitivity
receiver (- 95dBm @ 500Kbps) and high efficiency power amplifier (up to 1dBm). In low data rate application, A7105 has
special strength for long LOS (line-of-sight) distance because of its ultra high sensitivity (-107 dBm @ 2Kbps, - 104 dBm @
25Kbps) with no requirement of external LNA or PA. Based on Data Rate Register (0x0E), user can configure on-air data
rates from 2Kbps to 500Kbps.
A7105 supports fast settling time (130 us) for frequency hopping system. For packet handling, A7105 has built-in separated
64-bytes TX/RX FIFO (could be extended to 256 bytes) for data buffering and burst transmission, CRC for error detection,
FEC for 1-bit data correction per code word, RSSI for clear channel assessment, data whitening for data encryption /
decryption. Those functions are very easy to use while developing a wireless system. All features are integrated in a small
QFN 4X4 20 pins package.
A7105’s control registers can be easily accessed via 3-wire or 4-wire SPI bus. For power saving, A7105 supports sleep mode,
idle mode, standby mode. For easy-to-use, A7105 has an unique SPI command set called
Strobe command
that are used to
control internal state machine. Based on Strobe commands via SPI bus, MCU can control everything from power saving, TX
delivery, RX receiving, channel monitoring, frequency hopping to auto calibrations. In addition, A7105 supports two general
purpose I/O pins, GIO1 and GIO2, to inform MCU its status so that MCU could use either polling or interrupt scheme to do
radio control. Hence, it is very easy to monitor radio transmission between MCU and A7105 because of its digital interface.
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Small size (QFN4 X4, 20 pins).
Frequency band: 2400 ~ 2483.5MHz.
FSK or GFSK modulation
Low current consumption: RX 16mA, TX 20mA (at 0dBm output power).
Low sleep current (1.5 uA).
On chip regulator, support input voltage 2.0 ~ 3.6 V.
Programmable data rate from 2Kbps to 500Kbps.
Programmable TX power level from – 20 dBm to 1 dBm.
Ultra High sensitivity:
-95dBm at 500Kbps on-air data rate.
-97dBm at 250Kbps on-air data rate
-104dBm at 25Kbps on-air data rate
-107dBm at 2Kbps on-air data rate
Fast settling time (130 us) synthesizer for frequency hopping system.
Built-in Battery Detector.
Support low cost crystal (6 / 8 /12 / 16 / 20 / 24MHz).
Support crystal sharing, (1 / 2 / 4 / 8MHz) to MCU.
Support Frequency Compensation.
Easy to use.
Support 3-wire or 4-wire SPI.
Unique Strobe command via SPI.
ONE register setting for new channel frequency.
8-bits Digital RSSI for clear channel indication.
Fast exchange mode during TRX role switching.
Auto RSSI measurement.
Auto Calibrations.
Auto IF function.
Auto CRC Check.
Auto FEC by (7, 4) Hamming code (1 bit error correction / code word).
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3. Feature
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Wireless keyboard and mice
Remote control
Helicopter and airplane radio controller
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2. Typical Applications
2400 ~ 2483.5 MHz ISM system
Wireless metering and building automation
Wireless toys and game controllers
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