ia3513 integration, ia3513 Datasheet - Page 19

• Manufacturer Part Number: ia3513
• Description: Headset Voice And Power Solution
• Manufacturer: integration

IA3513
DIGITAL INTERFACE
PCM Interface
Description
The PCM interface included in the IC is a flexible programmable data interface. The 16 bit linear PCM data transfer, both in the
transmit and receive, is controlled by the PCM_SYNC and PCM_CLK inputs as well as the PCM control registers. The input and
output words are 2’s complement format.
The transmit and receive data start can be independently selected by using the transmit and receive data offset registers.
Transmit output digital data can be selected to be present either on the positive or negative edge of the PCM_CLK. The
PCM_CLK input supports a frequency range of 1024kHz, 2048kHz and 4096kHz; this frequency is auto detected by comparison
with the 8 kHz PCM_SYNC input. The internal clock generator adjusts to the correct ratios at startup. The PCM_OUT output is tri-
stated when valid output data is not present.
Timing Diagrams
Data Transmit timing diagram for output on positive edge
Data Transmit output on negative edge
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