WM9713LGEFL/RV Wolfson Microelectronics, WM9713LGEFL/RV Datasheet - Page 31

• 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
w
CONTROL
The register bits controlling PCM audio format, word length and operating modes are summarised
below. CTRL must be set to override the normal use of the PCM interface pins as GPIOs, MODE
must be set to specify master/slave modes.
Table 8 PCM Codec Control
Note: Right justified does not support 32-bit data.
36h
PCM
Control
REGISTER
ADDRESS
15
14:13
11:9
8
7
6
5:4
3:2
1:0
BIT
MODE
CTRL
DIV
VDACOS
R
CP
FSP
SEL
WL
FMT
LABEL
DEFAULT
0
10
010
1
0
0
10
00
11
GPIO Pin Configuration Control
0 = GPIO pins as GPIOs
1 = GPIO pins configured as PCM interface
PCM Interface Mode Control
00 = PCM interface disabled [PCMCLK tri-
01 = PCM interface in slave mode [PCMCLK
10 = PCM interface in master mode [PCMCLK
11 = PCM interface in partial master mode
PCMCLK Rate Control
000 = Voice DAC clock
001 = Voice DAC clock / 2
010 = Voice DAC clock / 4
011 = Voice DAC clock / 8
100 = Voice DAC clock / 16
All other values are reserved
Voice DAC Oversampling Rate Control
0: 128 x fs
1: 64 x fs
PCMCLK Polarity Control
0 = Normal
1 = Inverted
FMT = 00, 01 or 10
PCMFS Polarity
Control
0 = Normal
1 = Inverted
PCM ADC Output Channel Control
00 = Normal stereo
01 = Reverse stereo
10 = Output left ADC data only
11 = Output right ADC data only
PCM Data Word Length Control
00 = 16-bit
01 = 20-bit
10 = 24-bit
11 = 32-bit (not supported when FMT=00)
PCM Data Format Control
00 = Right justified
01 = Left justified
10 = I
11 = DSP mode
and controlled by this register
stated, PCMFS tri-stated]
as input, PCMFS as input]
as output, PCMFS as output]
[PCMCLK as output, PCMFS as input]
2
S
DESCRIPTION
PP Rev 3.2 September 2008
FMT = 11
DSP Mode Control
0 = DSP Mode A
1 = DSP Mode B
WM9713L
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