Datasheet > HD155111F

HD155111F

更新时间： 2024-09-18 23:14:59

品牌	Logo	应用领域
日立 - HITACHI		电信集成电路个人通信信息通信管理蜂窝 PC PCN
页数	文件大小	规格书
44页	470K
描述
RF Single-chip Linear IC for PCN Cellular Systems

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HD155111F 数据手册

HD155111F

RF Single-chip Linear IC for PCN Cellular Systems

ADE-207-257 (Z)

1st Edition

August 1998

Description

The HD155111F was developed for PCN (DCS1800) cellular systems, and integrates most of the functions

of a transceiver. The HD155111F incorporates the bias circuit for a RF LNA, a 1st mixer, 1st-IF amplifier,

2nd mixer, AGC amplifier and an IQ quadrature demodulator for the receiver, and an IQ quadrature

modulator and offset PLL for the transmitter. Also, on chip are the dividers for the 1st & 2nd local

oscillator signals and 90˚ phase splitter. Moreover the HD155111F includes control circuits to implement

power saving modes. These functions can operate down to 2.7 V and are housed in a 48-pin LQFP SMD

package.

Hence the HD155111F can form a small size transceiver handset for PCN by adding a PLL frequency

synthesizer IC, a power amplifier and some external components. See page 7 “Configuration”.

The HD155111F is fabricated using a 0.6 µm double-polysilicon Bi-CMOS process.

Functions

Receiver (RX)

•

Low Noise Amplifier (LNA) bias circuit

1st mixer

IF amplifier

2nd mixer

Automatic gain control amplifier (AGC)

IQ demodulator with 90° phase splitter

Transmitter (TX)

•

IQ modulator with 90° phase splitter

Offset PLL

Down converter

Phase comparator

TX VCO driver

12 3 4 5 6 7...44

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