WM9713LGEFL/RV Wolfson Microelectronics, WM9713LGEFL/RV Datasheet - Page 63

• Manufacturer Part Number: WM9713LGEFL/RV
• Description: Audio CODECs Stereo AC'97 CODEC T/P Interface
• Manufacturer: Wolfson Microelectronics

Specifications of WM9713LGEFL/RV

• Number Of Adc Inputs: 1
• Number Of Dac Outputs: 1
• Conversion Rate: 8 KSPs
• Interface Type: AC97
• Resolution: 12 bit
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-48
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 1 ADC, 1 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pre-Production
DIGITAL AUDIO (S/PDIF) OUTPUT
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The WM9713L supports the S/PDIF standard. Pins 48 & 12 can be used to output the S/PDIF data.
Note that pins 48 & 12 can also be used as GPIO pins. The GE5 & GE8 bits (register 56h, bit 5 & bit
8) select between GPIO and S/PDIF functionality for pins 48 & 12 respectively (see “GPIO and
Interrupt control” section).
Register 3Ah is a read/write register that controls S/PDIF functionality and manages bit fields
propagated as channel status (or sub-frame in the V case). With the exception of V, this register
should only be written to when the S/PDIF transmitter is disabled (S/PDIF bit in register 2Ah is ‘0’).
Once the desired values have been written to this register, the contents should be read back to
ensure that the sample rate in particular is supported, then S/PDIF validity bit SPCV in register 2Ah
should be read to ensure the desired configuration is valid. Only then should the S/PDIF enable bit in
register 2Ah be set. This ensures that control and status information start up correctly at the
beginning of S/PDIF transmission.
PP Rev 3.2 September 2008
WM9713L
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