MSM7716 データシートの表示（PDF） - Oki Electric Industry

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MSM7716

Single Rail Linear CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7716

DEN, DCLK, CDIN

Serial control ports for the microcontroller interface.

Writing data to the 8-bit control register enables control of the receive output level and the signal

path.

DEN is the "Enable" signal pin, DCLK is the data shift clock input pin, and CDIN is the control

data input pin.

When powered down (PDN = 0), the initial values are set as shown in Tables 2, 3, and 4. The initial

values are held unless the control data is written after power-down release.

The control data is shifted at the rising edge of the DCLK signal and latched into the internal

control register at the rising edge of the DEN signal.

When the microcontroller interface is not used, these pins should be connected to DG.

The bit map of the 8-bit control register is shown below.

B7

B6

B5

B4

B3

B2

B1

B0

SW1

SW2

SW3

SW4

—

VOL1

VOL2

VOL3

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