WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 114

• 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

WM8900
Figure 66 LR Input 3 to Headphone Bypass Path
w
INDEX
0x3A
0x1E
0x01
0x03
0x1E
0x01
0x01
0x1E
0x01
0x03
REG
0x1E
0x0030
0x0082
0x0100
0x009A
0x0060
0x001A
0x0101
400ms
Delay
0x0109
0x0002
0x0009
0x00EC
VALUE
DATA
WRITE
READ
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
OR
The following section details the configuration for LINPUT3 and RINPUT3 to stereo headphone
mode, Note that SYSCLK is still required to operate the charge pump which powers the
headphone amplifiers, even although the digital audio interface is off.
LINE INPUT 3 TO HEADPHONE (BYPASS PATH)
HIGHPOW=0, HP_IPSTAGE_ENA=0, HP_OPSTAGE_ENA=0, HP_CLAMP_IP=1,
HP_CLAMP_OP=1, HP_SHORT=0, HP_SHORT2=0, HP_BIAS=00
OUT1_DIS=0, OUT2_DIS=1, VMID_DISCH=0, BIAS_SRC=0, VMID_SOFTST=0,
TEMP_SD=1, VROI=0
STARTUP_BIAS_ENA=1, FLL_ENA=0, MICB_ENA=0, BIAS_ENA=0,
VMID_BUF_ENA=0, VMID_MODE=00
OUT1_DIS=0, OUT2_DIS=1, VMID_DISCH=0, BIAS_SRC=1, VMID_SOFTST=1,
TEMP_SD=1, VROI=0
CP_ENA=0, OUT2L_ENA=1, OUT2R_ENA=1, MIXOUTL_ENA=0, MIXOUTR_ENA=0,
DACL_ENA=0, DACR_ENA=0
OUT1_DIS=0, OUT2_DIS=0, VMID_DISCH=0, BIAS_SRC=1, VMID_SOFTST=1,
TEMP_SD=1, VROI=0
STARTUP_BIAS_ENA=1, FLL_ENA=0, MICB_ENA=0, BIAS_ENA=0,
VMID_BUF_ENA=0, VMID_MODE=01
INSERT_DELAY_MS 400
STARTUP_BIAS_ENA=1, FLL_ENA=0, MICB_ENA=0, BIAS_ENA=1,
VMID_BUF_ENA=0, VMID_MODE=01
OUT1_DIS=0, OUT2_DIS=0, VMID_DISCH=0, BIAS_SRC=0, VMID_SOFTST=0,
TEMP_SD=1, VROI=0
STARTUP_BIAS_ENA=0, FLL_ENA=0, MICB_ENA=0, BIAS_ENA=1,
VMID_BUF_ENA=0, VMID_MODE=01
CP_ENA=1, OUT2L_ENA=1, OUT2R_ENA=1, MIXOUTL_ENA=1, MIXOUTR_ENA=1,
DACL_ENA=0, DACR_ENA=0
COMMENT
PD, August 2008, Rev 4.0
Production Data
114