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LMR2-433-5 データシート(PDF) 3 Page - Radiometrix Ltd |
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LMR2-433-5 データシート(HTML) 3 Page - Radiometrix Ltd |
3 / 11 page Radiometrix Ltd LMT2/LMR2 Data Sheet page 3 Figure 3: LMT2 footpint (top view) Pin description – LMT2 Pin Name Function 1a Vcc 3.1 – 15V power supply (@ 10mW) 4.1 – 15V power supply (@ 100mW) 2a 0V Ground 3a TXE Transmit Enable (active low) 4a TXD DC coupled input for 3V CMOS logic. Rin=47kΩ 5a No pin Not present in LMT2 1b P0/PGM Parallel Channel select LSB Serial frequency programming / configuration 1 2b P1 Parallel Channel select 3b P2 Parallel Channel select 4b P3 Parallel Channel select MSB 5b No pin Not present in LMT2 Notes: 1. Serial programming is by an inverted, CMOS logic level, 2400 baud RS232 datastream applied to the P0 pin. 2. Channel select inputs have pullups (50kΩ) to 3v internal rail. Do not exceed 3V logic levels on this port. 3. Channel select inputs are active low 4. TXE has a 100kΩ pullup to Vcc 5. All pins are on an 0.1" grid 6. The pins 5a/b are not present, but are included in footprint for compatibility with other units in this family 7. In the 'off' state a PIN switch open circuits the RF output pin. There are no 'off' state spuri. 8. 10mW unit will operate (with marginally reduced specifications and lower (6-8mW) output power) from a 3.0V rail. This must be well regulated and without noise or ripple, as in this state the unit's internal regulator no longer operates, and provides no supply rejection. 9. 100mW versions should not be run continuously from supply voltages > 9v |
同様の部品番号 - LMR2-433-5 |
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同様の説明 - LMR2-433-5 |
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