WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 108

• Manufacturer Part Number: WM8903LGEFK/RV
• Description: Audio CODECs ULTRA LOW PWR HI FI CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8903LGEFK/RV

• Audio Codec Type: Stereo Codec
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 6
• No. Of Output Channels: 8
• Adc / Dac Resolution: 24bit
• Sampling Rate: 96kHz
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Adcs / Dacs Signal To Noise Ratio: 96dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8903
w
Interrupt Output is the default function of GPIO4. See “Interrupts” for further details.
BCLK is the default function of GPIO5. This may be input or output. Note that, when BCLK is
enabled on this pin (GP5_FN = 1h), the other GPIO control fields for this pin have no effect. When
BCLK is not enabled on this pin (GP5_FN ≠ 1h), the WM8903 uses the MCLK input as the Bit Clock.
See “Digital Audio Interface Control” for further details.
R116 (74h)
GPIO Control
1
REGISTER
ADDRESS
13:8
BIT
7
6
5
4
3
2
1
0
GP1_FN [5:0]
GP1_DIR
GP1_OP_CFG
GP1_IP_CFG
GP1_LVL
GP1_PD
GP1_PU
GP1_INTMODE
GP1_DB
LABEL
DEFAULT
00_0000
1
0
1
0
1
0
0
0
GPIO 1 Pin Function select
00h = GPIO output
01h = Reserved
02h = IRQ output
03h = GPIO input
04h = MICBIAS Current detect
05h = MICBIAS Short Circuit detect
06h = DMIC_LR Clock output
07h = Reserved
08h = FLL Lock output
09h = FLL Clock output
0Ah to 3Fh = Reserved
GPIO Pin Direction
0 = Output
1 = Input
Output pin configuration
0 = CMOS
1 = Open-drain
Input pin configuration
0 = Active low
1 = Active high
GPIO Output Level
(when GP1_FN = 00000)
0 = Logic 0
1 = Logic 1
GPIO Pull-Down Enable
0 = Pull-down disabled
1 = Pull-down enabled (Approx 100kΩ)
GPIO Pull-Up Enable
0 = Pull-up disabled
1 = Pull-up enabled (Approx 100kΩ)
GPIO Interrupt Mode
0 = Level triggered
1 = Edge triggered
GPIO de-bounce
0 = GPIO is not debounced
1 = GPIO is debounced
PD, Rev 4.0, September 2010
DESCRIPTION
Production Data
108