MC145540 데이터 시트보기 (PDF) - Motorola => Freescale

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MC145540

ADPCM Codec

Motorola => Freescale 

PO+

PO-

PI

RO

AXO-

AXO+

V AG

TG

TI-

TI+

ANALOG INTERFACE

AND

-1

CODECĆFILTER

+

-

DAC

TRIM GAIN

AND FILTER

Σ

2.4 VOLT

REFERENCE

SIDETONE

GAIN

-

TRIM GAIN

ADC

+

AND FILTER

POWER SUPPLY MANAGEMENT

SUBSYSTEM

V DD

5 VOLT

REGULATED

3 VOLT

CHARGE PUMP

REGULATOR FOR

FOR CODECĆFILTER

DIGITAL SIGNAL

ANALOG

PROCESSOR

PROCESSING

C1+ C1- VSS VEXT VDSP

DIGITAL SIGNAL PROCESSOR

RECEIVE

DIGITAL GAIN

ADPCM

DECODER

LINEAR TO

COMPANDED

NOISEĆBURST

DETECT CIRCUIT

UNIVERSAL

DUAL TONE

GENERATOR

COMPANDED

TO LINEAR

ADPCM

ENCODER

ADPCM SERIAL

DATA PORT

INPUT SHIFT

REGISTER

FSR LENGTH

CIRCUITRY

DR

FSR

BCLKR

FST LENGTH

CIRCUITRY

OUTPUT SHIFT

REGISTER

BCLKT

FST

DT

SERIAL CONTROL PORT

SEQUENCE

SPC

AND

CONTROL

SCP EN SCP CLK SCP RX SCP TX

PDI/RESET

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