MT9094AP 查看數據表（PDF） - Zarlink Semiconductor Inc

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MT9094AP

ISO2-CMOS ST-BUS™ FAMILY Digital Telephone (DPhone-II)

Zarlink Semiconductor Inc 

ISO2-CMOS ST-BUSTM FAMILY MT9094

Digital Telephone (DPhone-II)

Data Sheet

Features

• Programmable µ-Law/A-Law codec and filters

• Programmable CCITT (G.711)/sign-magnitude

coding

• Programmable transmit, receive and side-tone

gains

• DSP-based:

• Speakerphone switching algorithm

• DTMF and single tone generator

• Tone Ringer

• Differential interface to telephony transducers

• Differential audio paths

• Single 5 volt power supply

Applications

• Fully featured digital telephone sets

• Cellular phone sets

• Local area communications stations

February 2005

Ordering Information

MT9094AP

44 Pin PLCC

MT9094APR 44 Pin PLCC

MT9094AP1

44 Pin PLCC*

MT9094APR1 44 Pin PLCC*

*Pb Free Matte

-40°C to +85°C

Tubes

Tape & Reel

Tubes

Tape & Reel

Description

The MT9094 DPhone-II is a fully featured integrated

digital telephone circuit. Voice band signals are

converted to digital PCM and vice versa by a switched

capacitor Filter/Codec. The Filter/Codec uses an

ingenious differential architecture to achieve low noise

operation over a wide dynamic range with a single 5 V

supply. A Digital Signal Processor provides handsfree

speaker-phone operation. The DSP is also used to

generate tones (DTMF, Ringer and Call Progress) and

control audio gains. Internal registers are accessed

through a serial microport conforming to INTEL MCS-

51™ specifications. The device is fabricated in

Zarlink's low power ISO2-CMOS technology.

DSTo

DSTi

F0i

C4i

VSSD

VDD

VSSA

VSS

SPKR

VBias

VRef

Digital Signal Processor

22.5/-72dB

∆1.5dB

Tx & Rx

Filter/Codec Gain

ENCODER 7dB

DECODER -7dB

C-Channel

Registers

STATUS

Control

Registers

Transducer

Interface

Timing

Circuits

LCD Driver

New Call

Tone

Generator

S/P &

P/S

Converter

Serial

Port

(MCS-51

Compatible)

S1 S12

BP

WD PWRST IC

Figure 1 - Functional Block Diagram

1

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

Copyright 1995-2005, Zarlink Semiconductor Inc. All Rights Reserved.

MIC-

MIC+

M-

M+

HSPKR+

HSPKR-

SPKR+

SPKR-

DATA 2

DATA 1

SCLK

CS

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