STW82102B RF down converter with embedded integer-N synthesizer

The STMicroelectronics STW82102B is an integrated down converter providing 8 dB of gain, 10.5 dB NF, and a very high input linearity by means of its passive mixer.

Embedding two wide band auto calibrating VCOs and an integer-N synthesizer, the STW82102B is suitable for both Rx and Tx requirements for cellular infrastructure equipment.

The integrated RF balun and internal matching permit direct 50 ohm single-ended interface to RF port. The IF output is suitable for driving 200-ohm impedance filters.

By embedding a DAC with dual current output to drive an external PIN diode attenuator, the STW82102B replaces several costly discrete components and offers a significant footprint reduction.

The STW82102B device is designed with STMicroelectronics advanced 0.35 μm SiGe process. Its performance is specified over a -40 °C to +85 °C temperature range.

技术特性

High linearity:
- IIP3: +25.5 dBm
- 2FRF-2FLO spurious rejection: 85 dBc
Noise figure:
- NF: 10.5 dB
Conversion gain
- CG: 8 dB
RF range: 1425 MHz to 1910 MHz
Wide IF amplifier frequency range: 70 MHz to 400 MHz
Integrated RF balun with internal matching
Dual differential integrated VCOs with automatic center frequency calibration:
- LOA: 1500 to 1800 MHz
- LOB: 1900 to 2200 MHz
Embedded integer-N synthesizer
- Dual modulus programmable prescaler (16/17 or 19/20)
- Programmable reference frequency divider (10 bits)
- Adjustable charge pump current
- Digital lock detector
- Excellent integrated phase noise
- Fast lock time: 150 μs
Integrated DAC with dual current output
Supply: 3.3 V and 5 V analog, 3.3 V Digital
Dual digital bus interface: SPI and I²C bus (fast mode) with 3 bit programmable address (1101A2A1A0)
Process: 0.35 μm BICMOS SiGe
Operating temperature range -40 to +85oC
44-lead exposed pad VFQFPN package 7x7x1.0 mm
Applications
- Cellular infrastructure equipment:
  - IF sampling receivers
  - Digital PA linearization loops
- Other wireless communication systems

STW82102B 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STW82102BTR	Active			VFQFPN2 44 7x7x1.0	Tape And Reel		STW82102BTR
STW82102B	Active			VFQFPN2 44 7x7x1.0	Tray		STW82102B

DATASHEET

描述	版本	大小
STW82102B : DS7127: RF down converter with embedded integer-N synthesizer	2	720KB

APPLICATION NOTES

描述	版本	大小
AN2455: STWPLLSim phase noise and settling time simulator for STW8110x	2	1044KB
AN2491: STW8110x hardware component layer API guide	1	156KB
AN2452: STW8110x evaluation board and graphical user interface	3	1304KB

FLYERS

描述	版本	大小
STW82102B : Integrated multi-band RF synthesizers	1.0.0	115KB