This datasheet provides comprehensive information on STMicroelectronics STW82101B RF down converter. The device provides 8.5 dB of gain, 9.5 dB NF, and a very high input linearity by means of its passive mixer. It also integrates two wide band automatic center frequency calibrated differential VCOs operating in the 850 to 1025 MHz and 1025 to 1185 MHz frequency bands. The device also integrates an integer-N synthesizer featuring a dual modulus programmable prescaler (16/17 or 19/20), a programmable reference frequency divider (10 bits), an adjustable charge pump current, a digital lock detector, excellent integrated phase noise, and a fast lock time (150 µs). The device also integrates a DAC with dual current outputs. The device features a 3.3 V and 5 V analog supply, a 3.3 V digital supply, and provides SPI and I2C bus interfaces (fast mode) with a 3 bit programmable address (1101A2A1A0).
The STMicroelectronics STW82101B is an integrated down converter providing 8.5 dB of gain and a noise figure of 9.5 dB. It features high linearity with an IIP3 of +24.5 dBm and includes dual differential integrated VCOs with automatic center frequency calibration.
The device embeds an integer-N synthesizer, a DAC with dual current output to drive external PIN diode attenuators, and supports both SPI and I2C digital bus interfaces for configuration and calibration.
| Input linearity (IIP3) | +24.5 dBm |
|---|---|
| Noise figure (NF) | 9.5 dB |
| Conversion gain (CG) | 8.5 dB |
| RF input range | 695 MHz to 960 MHz |
| IF amplifier frequency range | 70 MHz to 400 MHz |
| LOA frequency range | 850 to 1025 MHz |
| LOB frequency range | 1025 to 1185 MHz |
| Supply voltage (Analog) | 3.3 V and 5 V |
| Operating temperature range | -40 to +85°C |
The device comes in a 44-lead exposed pad VFQFPN package measuring 7x7x1.0 mm.
The device supports dual digital bus interfaces: SPI and I2C (fast mode) with a 3-bit programmable address.
The device features a fast lock time of 150 us.