| Part Number | RF2908 |
| Manufacturer | RF Micro Devices |
| Title | 915MHZ SPREAD SPECTRUM RECEIVER WITH PLL FREQUENCY SYNTHESIZER |
| Description | The RF2908 is a monolithic integrated circuit specifically designed for direct-sequence spread-spectrum systems operating in the 902MHz to 928MHz ... |
| Features |
• FCC Part 15.247 Compliant • Direct Conversion Receiver 11 TRANSCEIVERS MOUT Q± 1,2 LNA LNA IN 6 IN Q± 47,48 IF Amp Q Data Amp 39 Q DATA • On-Chip 86 Channel Frequency Synthesizer • On-Chip Selectable IF Bandwidths • 2.7V to 3.6V Operation +45° -45° RSSI Gain Control 42 IF OUT Q 19 IF OUT I ... |
| File Size | 534.36KB |
| Datasheet |
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RF2905 : The RF2905 is a monolithic integrated circuit intended for use as a low cost FM transceiver. The device is provided in 7mmx7mm, 48-lead plastic LQFP packaging and is designed to provide a fully functional FM transceiver. The chip is intended for linear (AM, FM) or digital (ASK, FSK, OOK) applications in the North American 915MHz ISM band and European 433MHz and 868MHz ISM bands. The integrated VCO, dual modulus/dual divide (128/129 or 64/65) prescaler, and reference oscillator require only the addition of an external crystal to provide a complete phase-locked oscillator. 9.00 + 0.20 sq. 0.35 0.25 0.50 7.00 + 0.10 sq. 0.22 + 0.05 1.40 + 0.05 Dimensions in mm. 7° MAX 0° MIN 0.60 + 0.15.
RF2909 : The RF2909 is a monolithic integrated transmitter IC capable of universal direct modulation. The quadrature modulator allows for a variety of modulation formats and compound carriers. The transmitter has two power control modes. Two inputs can be controlled digitally for stepping output power 1mW, 10mW, or 70mW output power. Or, the output level can be adjusted by an analog input from 1mW to 80mW. The quadrature mixers have differential inputs, and are internally biased; a DC blocking capacitor is required if external DC levels are present. The LO is split with a passive network tuned for 915MHz. 1 .157 .150 .033 .010 .004 .344 .337 .012 .008 .025 R F2 94 .244 .228 8°MAX 0°MIN .050 .01.