首页 > 器件类别 > 无线/射频/通信 > 无线收发芯片

CMT2157A-ESR

接口类型:- 输出功率:-10dBm ~ 13dBm 工作电压:1.8V ~ 3.6V 类型:TxRx Only 作业频率:868.35MHz

器件类别:无线/射频/通信    无线收发芯片   

厂商名称:HOPERF

厂商官网:http://www.hoperf.com/

下载文档
器件参数
参数名称
属性值
最大传输速率
40ksps, 100ksps
输出功率
-10dBm ~ 13dBm
工作电压
1.8V ~ 3.6V
类型
TxRx Only
射频系列/标准
General ISM < 1GHz
作业频率
868.35MHz
调制方式
(G)FSK, OOK
文档预览
CMT2157A
CMT2157A
240 – 960 MHz (G)FSK/OOK Stand-Alone Transmitter with Encoder
Features
Applications
Embedded EEPROM
Very Easy Development with RFPDK
All Features Programmable
Low-Cost Consumer Electronics Applications
Home and Building Automation
Remote Fan Controllers
Infrared Transmitter Replacements
Industrial Monitoring and Controls
Remote Lighting Control
Wireless Alarm and Security Systems
Remote Keyless Entry (RKE)
Frequency Range: 240 to 960 MHz
FSK, GFSK and OOK Modulation
Symbol Rate:
0.5 to 100 ksps (FSK/GFSK)
0.5 to 40 ksps (OOK)
Deviation: 1.0 to 200 kHz
Output Power: -10 to +13 dBm
Sleep Current: < 20 nA
Stand-Alone, No External MCU Control Required
Embedded 1920, 1527 and 2262 Data Encoder
Up to 7 Configurable Data Pins for Push Buttons
LED Indicator for Low Battery Detection and Transmission
Sync ID Auto-Study with CMOSTEK Receiver
FCC / ETSI Compliant
RoHS Compliant
14-pin SOP Package
Part Number
CMT2157A-ESR
CMT2157A-ESB
Frequency
868.35 MHz
868.35 MHz
Package
T&R
Tube
MOQ
2,500 pcs
1,000 pcs
Ordering Information
More Ordering Info: See
Page 26
Descriptions
The CMT2157A is a true single-chip, highly flexible, high
performance, (G)FSK/OOK RF transmitter with embedded
data encoder ideally for 240 to 960 MHz wireless
applications. The device integrates a data encoder that is
not only compatible with the most common used encoding
format of 1527 and 2262, but also a more efficient, flexible
and powerful format of 1920 designed by CMOSTEK. Up
to 7 configurable push buttons are supported in multiple
button modes. When pairing the device to CMOSTEK
receiver, the synchronization ID can be programmed into
both
of
the
transmitter
and
receiver
during
the
GND
RFO
K7
K6
K5
LED
VDD
SOP14
1
2
3
4
5
6
7
14
13
12
11
10
9
8
XTAL
CLK
DATA
K1
K2
K3
K4
manufacturing phase, or studied by the receiver from the
transmitter remotely by end customers. An embedded
EEPROM allows the RF and encoder parameters to be
programmed into the chip using the CMOSTEK USB
Programmer and the RFPDK. Alternatively, in stock
product of 868.35 MHz is available for immediate demands
without
the
need
of
EEPROM
programming.
TM
The
CMT2157A is part of the CMOSTEK NextGenRF
low cost, low power consumption RF links.
family,
CMT2157A
together with CMT225x series receivers, they enable ultra
Copyright © By CMOSTEK
Rev 0.8 | Page 1/31
www.hoperf.com
CMT2157A
Typical Application
CMT2157A
VDD
ANT
L1
L2
C1
SW7
C2
SW6
SW5
C0
D1
1
LED
XTAL
CLK
DATA
X1
14
13
12
11
10
9
8
CLK
VDD
CLK
DATA
2
3
4
5
6
7
J1
1
2
3
4
VDD
GND
RFO
K7
K6
K5
DATA
SW1
SW2
SW3
SW4
U1
K1
K2
K3
K4
Note: Connector J1 is for
EEPROM Programming
Figure 1. CMT2157A Typical Application Schematic
Table 1. BOM of 433.92/868.35 MHz Typical Application
Value
Designator
Descriptions
433.92 MHz
U1
X1
C0
C1
C2
L1
L2
D1
SW[7:1]
CMT2157A, 240 – 960 MHz (G)FSK/OOK
stand-alone transmitter with encoder
±20 ppm, SMD32*25 mm crystal
±20%, 0402 X7R, 25 V
±5%, 0402 NP0, 50 V
±5%, 0402 NP0, 50 V
±5%, 0603 multi-layer chip inductor
±5%, 0603 multi-layer chip inductor
D0603, red LED
Push buttons
82
9.1
180
22
-
-
-
26
0.1
82
3.9
100
5.1
868.35 MHz
-
MHz
uF
pF
pF
nH
nH
-
-
CMOSTEK
EPSON
Murata GRM15
Murata GRM15
Murata GRM15
Murata LQG18
Murata LQG18
-
-
Unit
Manufacturer
Rev 0.8 | Page 2/31
www.hoperf.com
CMT2157A
Abbreviations
Abbreviations used in this data sheet are described below
AN
BOM
BSC
BW
DC
EEPROM
ESD
ESR
FSK
GFSK
GUI
IC
LDO
Max
MCU
Min
MOQ
NP0
Application Notes
Bill of Materials
Basic Spacing between Centers
Bandwidth
Direct Current
Electrically Erasable Programmable Read-Only
Memory
Electro-Static Discharge
Equivalent Series Resistance
Frequency Shift Keying
Gauss Frequency Shift Keying
Graphical User Interface
Integrated Circuit
Low Drop-Out
Maximum
Microcontroller Unit
Minimum
Minimum Order Quantity
Negative-Positive-Zero
OBW
OOK
PA
PC
PCB
PLL
PN
RBW
RCLK
RF
RFPDK
RoHS
Rx
SOT
TBD
Tx
Typ
XO/XOSC
XTAL
Occupied Bandwidth
On-Off Keying
Power Amplifier
Personal Computer
Printed Circuit Board
Phase Lock Loop
Phase Noise
Resolution Bandwidth
Reference Clock
Radio Frequency
RF Product Development Kit
Restriction of Hazardous Substances
Receiving, Receiver
Small-Outline Transistor
To Be Determined
Transmission, Transmitter
Typical
Crystal Oscillator
Crystal
Rev 0.8 | Page 3/31
www.hoperf.com
CMT2157A
Table of Contents
1. Electrical Characteristics ............................................................................................................................................ 5
1.1 Recommended Operating Conditions ................................................................................................................... 5
1.2 Absolute Maximum Ratings................................................................................................................................... 5
1.3 Transmitter Specifications ..................................................................................................................................... 6
1.4 Crystal Oscillator ................................................................................................................................................... 7
2. Pin Descriptions .......................................................................................................................................................... 8
3. Typical Performance Characteristics ......................................................................................................................... 9
4. Typical Application Schematics ............................................................................................................................... 10
4.1 Low-Cost Application Schematic ......................................................................................................................... 10
4.2 FCC/ETSI Compliant Application Schematic....................................................................................................... 11
5. Functional Descriptions ............................................................................................................................................ 12
5.1 Overview ............................................................................................................................................................. 12
5.2 Modulation, Frequency, Deviation and Symbol Rate .......................................................................................... 12
5.3 Embedded EEPROM and RFPDK ...................................................................................................................... 13
5.4 Power Amplifier ................................................................................................................................................... 15
5.5 PA Ramping ........................................................................................................................................................ 15
5.6 Working States .................................................................................................................................................... 16
5.7 The Encoder........................................................................................................................................................ 17
5.7.1 1920 Packet Structure
............................................................................................................................................17
5.7.2 1527 Packet Structure
............................................................................................................................................18
5.7.3 2262 Packet Structure
............................................................................................................................................19
5.8 ID Study .............................................................................................................................................................. 20
5.9 Button Modes ...................................................................................................................................................... 21
5.9.1 Normal
......................................................................................................................................................................21
5.9.2 Matrix
........................................................................................................................................................................22
5.9.3 Toggle
.......................................................................................................................................................................23
5.9.4 PWM
.........................................................................................................................................................................23
5.10 LED Driving Capability ........................................................................................................................................ 24
5.11 Low Battery Detection (LBD) ............................................................................................................................... 24
5.12 Crystal Oscillator and RCLK................................................................................................................................ 24
6. Ordering Information ................................................................................................................................................. 26
7. Package Outline......................................................................................................................................................... 27
8. Top Marking ............................................................................................................................................................... 28
8.1 CMT2157A Top Marking ..................................................................................................................................... 28
9. Other Documentations .............................................................................................................................................. 29
10. Document Change List.............................................................................................................................................. 30
11. Contact Information .................................................................................................................................................. 31
Rev 0.8 | Page 4/31
www.hoperf.com
CMT2157A
1.
Electrical Characteristics
V
DD
= 3.3 V, T
OP
= 25
, F
RF
= 433.92 MHz, output power is +10 dBm terminated in a matched 50 Ω impedance, unless
otherwise noted.
1.1 Recommended Operating Conditions
Table 2. Recommended Operation Conditions
Parameter
Operation Voltage Supply
Operation Temperature
Supply Voltage Slew Rate
Symbol
V
DD
T
OP
Conditions
Min
1.8
-40
1
Typ
Max
3.6
85
Unit
V
mV/us
1.2 Absolute Maximum Ratings
Table 3. Absolute Maximum Ratings
Parameter
Supply Voltage
Interface Voltage
Junction Temperature
Storage Temperature
Soldering Temperature
ESD Rating
Latch-up Current
Note:
[1]. Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
Symbol
V
DD
V
IN
T
J
T
STG
T
SDR
Lasts at least 30 seconds
Human Body Model (HBM)
@ 85
-2
-100
Conditions
[1]
Min
-0.3
-0.3
-40
-50
Max
3.6
V
DD
+ 0.3
125
150
255
2
100
Unit
V
V
kV
mA
Caution!
ESD sensitive device. Precaution should be used when handling the device in order
to prevent permanent damage.
Rev 0.8 | Page 5/31
www.hoperf.com
查看更多>
热门器件
热门资源推荐
器件捷径:
S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY
需要登录后才可以下载。
登录取消