器件名称: U2762B-BFS
功能描述: 900-MHz ISM Band Receiver
文件大小: 299.27KB 共9页
简 介:U2762B
900-MHz ISM Band Receiver
Description
The receiver IC U2762B-B is specifically designed for cordless telephone applications in the 900-MHz ISM band. It is manufactured using TEMIC’s advanced UHF process. The IC consists of a 900-MHz RF amplifier and mixer, 10.7-MHz IF amplifier, limiter, RSSI, quadrature demodulator and comparator for the bit-slicer function. The device features 2.9-V operation. In conjunction with TEMIC’s transmitter IC U2763B-B and the PLL U2781B, a complete ISM RF IC kit is available which fits perfectly with AMD’s PhoX controllers AM79C432A and AM79C433. Electrostatic sensitive device. Observe precautions for handling.
Features
D Single-conversion receiver with 10.7-MHz IF D Comparator for bit slicer integrated D Temperature-compensated RSSI with 65 dB D D D D
dynamic range Supply-voltage range 2.7 V to 3.3 V Only 17 mA typical current consumption Few external components SSO28 package
Benefits
D Low filter costs due to 10.7-MHz single conversion D Very low count of external components saves PCB
space and costs
D Low current consumption results in very long
stand-by time of approximately 7 days
Block Diagram
VCC1 28 LO REF 27 LO in 26 GND1 25 A2 out 24 VCC2 23 Lim1 in 22 Lim1 REF 21 Lim1 out 20 GND3 19 Lim2 in 18 Lim2 REF 17 DEM NTank 16 DEM Tank 15
Mix
A2 RSSI Demo– dulator Vcc/2 Compa– rator 10 k + –
A1
1 NC
2 RSSI
3 A1 REF
4 A1 in
5 GND2
6 Mix out
7 VCC3
8 A2 in
9 A2 REF
10 Data out
11 Com Nin
12 Com in
13 SL in
14 DEM out
1……
