MSM7584DTS-K Просмотр технического описания (PDF) - Oki Electric Industry

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производитель

MSM7584DTS-K

π/4 Shift QPSK MODEM/ADPCM CODEC

Oki Electric Industry 

¡ Semiconductor

BLOCK DIAGRAM

FEDL7584D-02

MSM7584D

IFIN

PDN0

PDN1

PDN2

I+

I–

Q+

Q–

DIN

EXCK

DEN

DOUT

RESET

RO0 to RO1

SGM

SGCR

SGCT

AIN–

AIN+

GSX

PWI

AOUT–

AOUT+

VFRO

SAO

Phase detector

Delay detector

IFSEL

(From CR)

SL1

D

E SL2

C

AFC

DPLL

Judge

S

E

L

RXD

RXC

RXSC

VDDM

DGM

AGM

RPR

AFC/RCW

SLS

+1

–1

DC Offset

adjust

+1

–1

DC Offset

adjust

LPF

D/A

I output gain Adjust

LPF

D/A

Q output gain Adjust

Root Nyquist

LPF

3.84M S

To D/A

E

L

TXCSEL

(From CR)

S/P

MAPPING

PLL

384k

1/10

BSTO

TXD

TXW

TXCI

TXCO

Control

register

To MODEM

To CODEC

2b

8b A/D

Conv.

RSGAIN

+

–

RSSI

Offset adjust

SGRS

To internal SG

inside modem

VREF

Serial

Register

Controller

R Receiver

Transmitter

T

–

+

RC

A/D

filter converter

BPF

150 W driving AMP

–

+

–1

Noise

generator

TONE

generator

Side tone

gain setting

Power detect

Voice

Detect

S

Com-

E

L

pander

Transmit gain

setting

Tone gain

setting

ADPCM

CODER

P/S

&

S/P

+1

RC

D/A

filter converter

+1

SW1

VDD

SW3

SW2

S

LPF + +

E

L

Receive

gain setting

SW4 SW5

Expander

ADPCM

DECODER

From CR

DIO

WE

SSAADS

TAS

RWCK

CS1

CS2

VOXO

IS

PCMSI

PCMSO

BCLK

SYNC

PCMRI

PCMRO

IR

VOXI

RXMUTE

MLV2

MLV1

MLV0

2/58

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