WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 111

• Manufacturer Part Number: WM8900LGEFK/RV
• Description: Audio CODECs Ultra Low Power Hi-Fi CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8900LGEFK/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
Table 75 Stereo DAC to Headphone – Recommended Power up Sequence and Device Register Settings
Note:
These sequences are optimised for best audio performance and minimal pops; however a faster power up sequence can be
gained by reducing the delay time at the expense of reducing the pop suppression capability of the device
Figure 64 Stereo DAC to Line Output 1 Device Internal Signal Path
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INDEX
0x35
0x36
0x3A
0x3A
0x3A
0x3A
REG
0x0139
0x0139
0x009C
0x00CC
0x00C8
0x00C0
VALUE
DATA
WRITE
READ
Write
Write
Write
Write
Write
Write
OR
STEREO DAC TO LINE OUTPUT
The following section details the configuration for stereo DAC to line output (LINEOUT1L/R). Slave
mode, 24-bit I2S digital audio interface.
Block Diagram:
OUT2_VU=1, OUT2L_MUTE=0, OUT2L_VOL=11_1001
OUT2_VU=1, OUT2R_MUTE=0, OUT2R_VOL=11_1001
Set HP_SHORT=1, HP_SHORT2=1, HP_IPSTAGE_ENA=1; Reset CLAMP_IP=0
400ms Delay
Set HP_OPSTAGE_ENA = 1, Reset CLAMP_OP=0
Reset HP_SHORT2=0
Reset HP_SHORT=0
COMMENT
PD, August 2008, Rev 4.0
WM8900
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