STW82101B RF down converter with embedded integer-N synthesizer

The STMicroelectronics STW82101B is an integrated down converter providing 8.5 dB of gain, 9.5 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 STW82101B 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 STW82101B replaces several costly discrete components and offers a significant footprint reduction.

The STW82101B 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: +24.5 dBm
- 2FRF-2FLO spurious rejection: 75 dBc
Noise figure:
- NF: 9.5 dB
Conversion gain
- CG: 8.5 dB
RF range: 695 MHz to 960 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: 850 to 1025 MHz
- LOB: 1025 to 1185 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

STW82101B 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
STW82101BTR	Active			VFQFPN2 44 7x7x1.0	Tape And Reel		STW82101BTR
STW82101B	Active			VFQFPN2 44 7x7x1.0	Tray		STW82101B

DATASHEET

描述	版本	大小
STW82101B : DS7119: RF down converter with embedded integer-N synthesizer	2	745KB

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
STW82101B : Integrated multi-band RF synthesizers	1.0.0	115KB