433.92/868.35 MHz Hybrid Transmitter TXD1 ◎Ideal for 433.92/868.35MHz Remote Keyless-Entry Transmitter. ◎ SAW RESONATOR 433.92/868.35 MHz Hybrid Transmitter ◎ ASK Design The TXD1 is an ASK transmitter module .The result is excellent performance in a simple-to-use .The TXD1 is designed specifically for remote-control , wireless mouse and car alarm system operating at 433.92/868.35 MHZ . Absolute Maximum Ratings Parameter Power Voltage Supply and/or Modulation Value Units 3 V -20 to +80 ℃ Input Operating temperature Transmitter Characteristics Parameter Symbol Output power Supply current Supply voltage Range Data Rate Condition Vcc=3.0V,TA-27℃ Value min. 433.92MHz typ. max. 3 Unit dBm 868.35MHz dBm Icc 5.5 mA Vcc 3 V KEYMARK TECHNOLOGY Co.,Ltd 300Hz Page.第 1 頁 10K 建立日期 2004/2/3 bps 433.92/868.35 MHz Hybrid Transmitter Pin assignment PIN Connections 1 2 3 4 GND DATA DATA GND 7 10 11 13 15 NC NC ANT GND VCC Dimensions Millimeters Dimensions A 38.3 +/- 0.1mm F B 11.5 +/- 0.1mm G C 5.9 +/- 0.1mm H 1.2 (MAX) D 2.54 (MAX) I 3.4 +/0.01mm E 17.5 +/0.05mm KEYMARK TECHNOLOGY Co.,Ltd Millimeters 5.08 +/-0.01mm 5.08 +/0.01mm Page.第 2 頁 建立日期 2004/2/3 433.92/868.35 MHz Hybrid Transmitter Typing Test Circuit Typical transmitter Application Notes: 1. Encoder : HT12D/F , PTC ( 2262 ) 2. Antenna : Length = 17.2cm for 433.92MHz ; Length = 8.7 cm for 868.35MHz KEYMARK TECHNOLOGY Co.,Ltd Page.第 3 頁 建立日期 2004/2/3