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MPAD

更新时间： 2024-02-05 21:09:23

品牌	Logo	应用领域
MITEL		/
页数	文件大小	规格书
12页	511K
描述
Quadrature Downconverter

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MPAD 数据手册

SL1710

Quadrature Downconverter

Preliminary Information

Supersedes October 1996 version in Media IC Handbook HB4599-1.0

DS3842 - 4.1 March 1997

The SL1710 is a quadrature downconverter, intended for

use with both Professional and Consumer Digital Satellite

Applications.

The device contains high linearity, low noise amplifiers,

quadrature mixers, plus an on-chip oscillator, operating

between350MHzand500MHz,whichmaybesynthesisedvia

the differential prescaler outputs.

An AGC with 18dB gain control is provided to cope with a

wide range of input signal levels.

I and Q outputs are via low impedance single ended

amplifiers. These may be connected to a dual channel analog

to digital converter such as the PCA916, VP216, VP215 or

VP213, via a suitable anti-alias filter.

VCCB

AGC

IOUT

VEEA

IFINB

IFIN

VCCA

QOUT

VEEC

VCODIS

VCO B

VCO A

VEEB

PSCAL

PSCALB

VCCC

MP16

Fig. 1 Pin allocation top view

FEATURES

■ Wide input frequency range (350-500MHz)

ORDERING INFORMATION

SL1710/KG/MPAS

■ On chip oscillator with varactor tuning or SAW

resonator operation capability

SL1710/KG/MPAD (Tape and Reel)

■ Nominal 40dB conversion gain from IF input to I

and Q outputs

ABSOLUTE MAXIMUM RATINGS

Storage temperature

Junction temperature

Supply voltage

-55°C to +150°C

-29°C to +150°C

-0.3 to 7.0V

■ AGC amplifier with 18dB gain control range

■ I to Q phase match 90°C to ± 2°, gain match

better than 1dB

Voltage at any other pin

-0.3 to +7.0V

■ Low impedance I and Q single ended outputs,

with 15MHz ± 1dB BW

APPLICATIONS

■ Consumer digital satellite decoders

■ Professional digital satellite decoders

■ Communication systems

■ Divide by 32 prescaler outputs

■ Suitable for QPSK and up to 64QAM systems

AGC

IFIN

I OUT

AGC

IFINB

Q OUT

AGC

VCODIS

0 deg

90 deg

PSCAL

VCOA

Quadrature

÷32

generator

VCOB

PSCALB

Fig.2. SL1710 block diagram

12 3 4 5 6 7...12

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