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TX2I-433-5 Datasheet(PDF) 4 Page - Radiometrix Ltd |
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TX2I-433-5 Datasheet(HTML) 4 Page - Radiometrix Ltd |
4 / 11 page Radiometrix Ltd TX2M/RX2M Data Sheet page 4 Pin: C Name Function 1 0V Ground 2 TXE Transmitter enable. Low = ON, open = off. 4k7 internal pullup to Vcc 3 TXD DC coupled input for 3-12V CMOS logic. Leave open if unused 4 AF in AC coupled Analogue Input. Limit to 1Vpk-pk ±10% to keep distortion <1.5% and peak FM deviation >2.5kHz 5 +4.4Vout DC supply. 75mA maximum drain. Only present when TXE is low 6 PGM Serial programming/configuration input at RS232 level 7 0V Ground 8 P1 (MOD TXD) 9 P2 (MOD NC) 10 P3 (MOD TXH) Parallel frequency select inputs. Inverted logic, 10k pullups to 4V Pin C Name Function 1 RSSI DC level between 0.5V and 2.5V. 60dB dynamic range 2 SQF Noise operated carrier detect. Open collector. ON/low = no signal 3 AF out 200mVpk-pk audio. DC coupled, approx 1V bias. Muted by squelch 4 RXD Open collector output of data slicer. Need external pull-up 5 +4.4V out DC supply. 75mA maximum drain. Present if unit is powered. 6 0V Ground 7 PGM Serial programming/configuration input at RS232 level 8 P1 (MOD NC) 9 P2 (MOD RXD) 10 P3 (MOD CDE) Parallel frequency select inputs. Inverted logic, 10k pullups to 4V NOTES: 1. Internal AF Input gain is factory set for 1Vpk-pk to produce 3kHz peak deviation and minimum distortion. Analogue gain may be set for an input level of 50mV – 2V pk-pk. This cannot be done without appropriate test equipment. Contact factory for details 2. Carrier detect on RX2M mutes the AF and DATA outputs when RF input signal is <-123dBm. This can be factory disabled if required. 3. There are no pullups on the open collector outputs. External pull-up resistor should be used. 4. With 1200baud modem mode enabled, parallel selection of channel is unavailable as the P1-P3 lines are used for input/output operations. Figure 3: TX2M Footprint (Top) view Figure 4: RX2M Footprint (Top) view Pin: A Name Function 1 +Vin +4.5-16V 2 Gnd Ground Pin: B Name Function 1 Gnd RF ground 2 RF out To the antenna 3 Gnd RF ground Pin A Name Function 1 +Vin +4.5-16V 2 Gnd Ground Pin B Name Function 1 Gnd RF ground 2 RF out To the antenna 3 Gnd RF ground Pin Description - RX2M Pin Description - TX2M |
Similar Part No. - TX2I-433-5 |
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Similar Description - TX2I-433-5 |
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