MSM7584C View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

MFG CO.

MSM7584C

π/4 Shift QPSK MODEM/ADPCM CODEC

Oki Electric Industry 

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¡ Semiconductor

MSM7584C

(1) CR14 – B6 = "0"

TXD

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13

TXCI

(384kHz)

TXW

Dn-1 Dn

TXCO

(384kHz)

I, Q

Ramp rise-up

 BSTO

2 symbols

Delay of 6.25 symbols

(2) CR14 – B6 = "1"

TXD

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13

TXCI

(3.84MHz)

TXW

TXCO

Dn-1 Dn

(384kHz)

I, Q

Ramp

,
Delay of 6.25 symbols

Fall-down

2 symbols

Ramp rise-up

Ramp

2 symbols

Fall-down

BSTO

  Delayof6.25symbols

Delay of 6.25 symbols

Figure 3 Transmit Timing Diagram

2 symbols

12/57

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