RX3G
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RX3G
Product catalog summary
Features:
- Complies with EN 300 220-3 and EN 301 489-3 standards; FCC part 15.249 for North America.
- Data rates up to 128kbps with a range of up to 300m.
- Available frequencies: 868.3MHz, 869.5MHz, 869.85MHz.
- Regulated and unregulated versions, fully screened with improved blocking performance.
Technical Summary:
- Single conversion FM superhet with SAW front end filter for >50dB image rejection.
- Supply: +5V (± 10%), current consumption: 10mA (typical).
- Sensitivity: -102dBm @ 64kbps, -108dBm @ 15kbps.
- RSSI output with 50dB range, low LO leakage at -125dBm typical.
Pin Descriptions:
- RF IN (pin 1): 50Ω input from the antenna, DC isolated.
- Vcc (pin 7): 5V regulated DC supply, max ripple content 0.1Vp-p.
- RXD (pin 9): Digital output from the internal data slicer.
Performance Specifications:
- Operating temperature: -20°C to +70°C, storage temperature: -40°C to +100°C.
- Supply voltage range: 4.5V to 5.5V (standard), up to 16V (regulator version).
- RF sensitivity: -113dBm for 10dB (S+N/N), -108dBm for 1ppm BER at 15kbps.
Power Supply Requirements:
- Requires a regulated 5V supply with ripple content <100mVpk-pk.
- Regulator version provides constant 5V with supply ripple rejection of 40dB or more.
RSSI Characteristics:
- Measures incoming signal strength over a 50dB range.
- Output on pin 5 with a standing DC bias of 0.5V, rising to 1V at maximum indication.
Mounting Considerations:
- Can be mounted vertically or horizontally; good RF layout practice is essential.
- Connections should use 50Ω microstrip line or coax.
Variants and Ordering Information:
- Data rates: 15kb/s, 64kb/s, 128kb/s.
- Frequencies: 868.30MHz, 869.50MHz, 869.85MHz, 914.50MHz.
- Standard variants include RX3G-869.85-15-5V, RX3G-869.85-64-5V, RX3G-869.85-128-5V.
Legal and Compliance:
- Subject to R&TTE Directive compliance requirements.
- Not recommended for life-critical applications due to potential radio interference.
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