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CMT2110/17A

Low-Cost 240 – 960 MHz OOK Transmitter

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 480 MHz (CMT2110A)



240 to 960 MHz (CMT2117A)



OOK Modulation

Symbol Rate: 0.5 to 30 ksps

Output Power: -10 to +13 dBm

Supply Voltage: 1.8 to 3.6 V

Current Consumption: 12.4 mA @ +10 dBm

Sleep Current: < 20 nA

FCC / ETSI Compliant

RoHS Compliant

6-pin SOT23-6 Package

Ordering Information

Part Number

CMT2110A-ESR

CMT2117A-ESR

Frequency

433.92 MHz

868.35 MHz

Package

SOT23-6

MOQ

3,000 pcs

More Ordering Info: See

Page 20

Descriptions

The CMT2110/17A devices are ultra low-cost, highly

flexible, high performance, single-chip OOK transmitters for

various 240 to 960 MHz wireless applications. The

CMT2110A covers the frequency range from 240 to 480

MHz while the CMT2117A covers the 240 to 960 MHz

frequency range. They are part of the CMOSTEK

NextGenRF

family, which includes a complete line of

transmitters, receivers and transceivers. With very low

current consumption, the device modulates and transmits

the data which is sent from the host MCU. An embedded

EEPROM allows the frequency, output power and other

features to be programmed into the chip using the

CMOSTEK USB Programmer and RFPDK. Alternatively, in

stock products of 433.92/868.35 MHz are available for

immediate demands without the need of EEPROM

programming. The CMT2110/17A uses a 1-pin crystal

oscillator circuit with the required crystal load capacitance

integrated on-chip to minimize the number of external

components. The CMT2110/17A transmitter together with

the CMT221x receiver enables an ultra low cost RF link.

DATA

GND

XTAL

SOT23-6

VDD

RFO

CLK

CMT2110/17A

Rev 1.2 | Page 1/25

www.hoperf.com

CMT2110/17A

Typical Application

DATA

CLK

CMT2110/17A

XTAL

VDD

GND

RFO

VDD

ANT

VDD

Note: Connector J1 is for

EEPROM Programming

DATA

CLK

Figure 1. CMT2110/17A Typical Application Schematic

Table 1. BOM of 433.92/868.35 MHz Low-Cost Application

Value

Designator

Descriptions

433.92 MHz

Note:

[1]. The 868.35 MHz Application is for CMT2117A only.

CMT2110/17A, Low-Cost 240 – 960 MHz

OOK Transmitter

±20 ppm, SMD32*25 mm crystal

±20%, 0402 X7R, 25 V

±5%, 0402 NP0, 50 V

±5%, 0603 multi-layer chip inductor

180

0.1

3.9

100

8.2

868.35 MHz

[1]

Unit

Manufacturer

MHz

CMOSTEK

EPSON

Murata GRM15

Murata LQG18

Table 2. Product Selection Table

Product

CMT2110A

CMT2117A

Frequency

240-480 MHz

240-960 MHz

Modulation

OOK

Max Output

Power

+13 dBm

Tx Current Consumption

13.4 mA

(+10 dBm @ 433.92 MHz)

15.5 mA

(+10 dBm @ 868.35 MHz)

Embedded

EEPROM

√

Rev 1.2 | Page 2/25

www.hoperf.com

CMT2110/17A

Abbreviations

Abbreviations used in this data sheet are described below

BOM

BSC

EEPROM

ESD

ESR

ETSI

FCC

Max

MCU

Min

MOQ

NP0

OBW

OOK

Application Notes

Bill of Materials

Basic Spacing between Centers

Electrically Erasable Programmable Read-Only

Memory

Electro-Static Discharge

Equivalent Series Resistance

European Telecommunications Standards

Institute

Federal Communications Commission

Maximum

Microcontroller Unit

Minimum

Minimum Order Quantity

Negative-Positive-Zero

Occupied Bandwidth

On-Off Keying

PCB

RCLK

RFPDK

RoHS

SOT

TWI

Typ

USB

XO/XOSC

XTAL

Power Amplifier

Personal Computer

Printed Circuit Board

Phase Noise

Reference Clock

Radio Frequency

RF Product Development Kit

Restriction of Hazardous Substances

Receiving, Receiver

Small-Outline Transistor

Symbol Rate

Two-wire Interface

Transmission, Transmitter

Typical

Universal Serial Bus

Crystal Oscillator

Crystal

Rev 1.2 | Page 3/25

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CMT2110/17A

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 and Symbol Rate ........................................................................................................... 12

5.3 Embedded EEPROM and RFPDK ...................................................................................................................... 13

5.4 Power Amplifier ................................................................................................................................................... 14

5.5 PA Ramping ........................................................................................................................................................ 14

5.6 Crystal Oscillator and RCLK................................................................................................................................ 15

6. Working States and Transmission Control Interface ............................................................................................. 16

6.1 Working States .................................................................................................................................................... 16

6.2 Transmission Control Interface ........................................................................................................................... 16

6.2.1 Tx Enabled by DATA Pin Rising Edge...................................................................................................... 17

6.2.2 Tx Enabled by DATA Pin Falling Edge ..................................................................................................... 17

6.2.3 Two-wire Interface.................................................................................................................................... 17

7. Ordering Information ................................................................................................................................................. 20

8. Package Outline......................................................................................................................................................... 21

9. Top Marking ............................................................................................................................................................... 22

9.1 CMT2110/17A Top Marking ................................................................................................................................ 22

10. Other Documentations .............................................................................................................................................. 23

11. Document Change List.............................................................................................................................................. 24

12. Contact Information .................................................................................................................................................. 25

Rev 1.2 | Page 4/25

www.hoperf.com

CMT2110/17A

1. Electrical Characteristics

= 3.3 V, T

= 25

℃

, F

= 433.92 MHz, output power is +10 dBm terminated in a matched 50 Ω impedance, unless

otherwise noted.

1.1 Recommended Operating Conditions

Table 3. Recommended Operation Conditions

Parameter

Operation Voltage Supply

Operation Temperature

Supply Voltage Slew Rate

Symbol

Conditions

Min

1.8

-40

Typ

Max

3.6

Unit

℃

mV/us

1.2 Absolute Maximum Ratings

Table 4. 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

STG

SDR

Lasts at least 30 seconds

Human Body Model (HBM)

@ 85

℃

-2

-100

Conditions

[1]

Min

-0.3

-40

-50

Max

3.6

+ 0.3

125

150

255

100

Unit

℃

Caution!

ESD sensitive device. Precaution should be used when handling the device in order

to prevent permanent damage.

Rev 1.2 | Page 5/25

www.hoperf.com

型号	CMT2117A-ESR	CMT2110A-ESR
描述	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	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：433.92MHz 低成本OOK调制式发射芯片，工作频率：240~960MHZ
最大传输速率	30ksps	30kbps
输出功率	-10dBm ~ 13dBm	-10dBm ~ 13dBm
工作电压	1.8V ~ 3.6V	1.8V ~ 3.6V
类型	TxRx Only	TxRx Only
作业频率	868.35MHz	433.92MHz
调制方式	OOK	OOK