5504-CGT 查看數據表（PDF） - TDK Corporation

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5504-CGT

Direct Conversion Receiver

TDK Corporation 

DESCRIPTION

The 5504 is a low cost, high performance direct

conversion receiver (DCR) specifically designed for

digital wireless applications. The DCR architecture

provides a receiver design with fewer external

components than the conventional dual conversion

approach. The 5504 is designed to operate over an

input frequency range of 950 to 2150 MHz. The

device accepts an input signal in this frequency

range and down converts directly to baseband. The

local oscillator signal is generated by a completely

integrated phase lock loop that is fully

programmable through a standard serial port

interface.

5504 DCR

Direct Conversion Receiver

Advanced Information

FEATURES

April 2000

• Wideband I/Q demodulator

– RF input 950 to 2150 MHz

– External lowpass filter

- Integrated post-filter baseband drivers

• Integrated VCO and frequency synthesizer

• AGC Amplifier

APPLICATIONS

• Digital Satellite

• VSAT Receivers

BLOCK DIAGRAM

AGC

RFp

RFn

Dclk

Din

XTLP

XTLN

FILN

EON

Rext

Serial

Port

Xtal

Osc.

Power

0

Splitter

90

R3 R2 R1 R0

Divide

10-bit

C1 C0

Charge

Pump

Phase

Detect

Divide

11-bit

216............. 26

25............. 20

Modulo

6-bit

Div

32/33

IO2

VCO1 VCO0

VCO

QO2

RSHP

RSHN

RSLP

RSLN

1

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