CXD1196 데이터 시트보기 (PDF) - Sony Semiconductor

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CXD1196

CD-ROM DECODER

Sony Semiconductor 

CXD1196AR

(8) DRQ (DATA REQUEST : Output)

DMA data request signal (positive logic output)

(9) XDAC (DATA ACKNOWLEDGE : Input)

The acknowledge signal for DRQ (negative logic input). In the IC, it is pulled up by a typical 50 kΩ

resistor.

1.4 DAC interface

(1) BCKO (BIT CLOCK OUTPUT : Output)

Bit clock output signal to DA converter

(2) WCKO (WORD CLOCK OUTPUT : Output)

Word clock output signal to DA converter

(3) LRCO (LR CLOCK OUTPUT : Output)

LR clock output signal to DA converter

(4) DATO (DATA OUTPUT : Output)

Data output signal to DA converter

Fig. 1.1 shows a timing chart for interface with the DA converter.

1.5 Miscellaneous

(1) MUTE (MUTE : Output)

Output H when DA data is muted

(2) XRST (RESET : Input)

Chip reset signal (negative logic input)

(3) XTL1 (X’TAI1 : Input)

(4) XTL2 (X’TAI2 : Output)

Connect a 16.9344 MHz crystal oscillator unit between XTL1 and XTL2. (The value of the capacitor

depends on the crystal oscillator unit.) Or input 16.9344 MHz clock to the XTL1 pin. For ADPCM or

CD-DA playback, the clocks of the DSP for CD and this IC must be synchronized.

(5) CLK (CLOCK : Output)

Output 8.4672 clock.

When this clock is not be used, the output of the CLK pin may be fixed at ‘L’.

1.6 Test pins

These pins are normally kept in the opened state.

(1) TD0-7 (Input/Output) : Data bus for IC test. Pulled up by a typical 25 kΩ resistor.

(2) TDIO (Input) : Input pin for IC test. Pulled up by a typical 50 kΩ resistor.

(3) TA0-3 (Input) : Input pins for IC test. Pulled up by a typical 50 kΩ resistor.

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