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BIM3B-868-64 Datasheet(PDF) 3 Page - Radiometrix Ltd |
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BIM3B-868-64 Datasheet(HTML) 3 Page - Radiometrix Ltd |
3 / 11 page Radiometrix Ltd, BiM3B Data Sheet page 3 RXD pin 12 Digital output from internal data slicer. The output is a squared version of the signal on pin 13 (AF) and may be used to drive a decoder directly. The data is true data, i.e. as fed to the transmitter. Output is “open-collector” format with internal 10kΩ pullup to Vcc (pin 17). AF pin 13 Buffered & filtered analogue output from FM demodulator. Standing DC bias of 1V approx. Useful for test purposes or for driving external decoders. External load should be >10kΩ // <100pF TXD pin 14 This DC-coupled transmitter modulation input will accept either serial digital data or high level linear signals. Drive signal must be limited to 0V min, 3V max. See page 6 for suggested drive methods. Input impedance >50kΩ. TX select pin 15 Active-low Transmit select. 47kΩ internal pull-up to Vcc. RX select pin 16 Active-low Receive select. 47kΩ internal pull-up to Vcc. Pin 15 TX Pin 16 RX Function 1 1 Power down (<10µA) 1 0 Receiver enabled 0 1 Transmitter enabled 0 0 Self test loop-back* * Loop-back allows the receiver to monitor the transmitted signal. Under these conditions the Tx radiated signal level will be reduced to approximately -10dBm). Vcc pin 17 DC +ve supply pin. +2.9 to +16.0 volts @ <17mA (@ 5mW). The supply should be clean, <20mVP-P ripple. 18 17 16 15 14 13 12 11 10 0V Vcc RX SELECT TXD TX SELECT AF RXD RSSI/CD 0V 1 2 3 4 5 6 7 8 9 RF GND Antenna RF GND 0V No pin 33 mm 30.48 mm 23 mm 5 mm side view (through can) top view (without can) side view (with can) recommended PCB hole size: 1.2 mm module footprint size: 25 x 32 mm pin pitch: 2.54 mm (0.1") pins 4, 5, 6, 7 are not fitted & 8 Fig. 3: Physical dimensions |
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