msm7732a Oki Semiconductor, msm7732a Datasheet - Page 8
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msm7732a
Manufacturer Part Number
msm7732a
Description
Audio Codec
Manufacturer
Oki Semiconductor
Datasheet
1.MSM7732A.pdf
(28 pages)
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SYNC
8 kHz synchronous signal input for transmit and receive PCM data.
Synchronize this signal with BCLK signal. Refer to Figure 2.
PCMOUT
Transmit PCM data output.
This PCM output signal is output from MSB synchronously with the rising edge of BCLK and SYNC. Refer to
Figure 2. This is a logic output pin so that external pull-up is not required. This pin outputs logic "L" except during
effective PCM data bits, and outputs logic "H" during power-down.
PCMIN
Receive PCM data input.
This PCM input signal is shifted in on the falling edge of BCLK and is input from MSB.
Refer to Figure 2.
OKI Semiconductor
PCMIN or
PCMOUT
PCMIN or
PCMOUT
BCLK
BCLK
SYNC
SYNC
MSB
MSB
Figure 2 PCM Interface Basic Timing Diagram
(a) Long frame synchronous interface
(b) Short frame synchronous interface
8 kHz (125 µs)
14 bit in the case of linear mode
14 bit in the case of linear mode
8 kHz (125 µs)
LSB
LSB
FEDL7732A-01-01
MSM7732A-01
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