WM8351GEB/V Wolfson Microelectronics, WM8351GEB/V Datasheet - Page 294

• Manufacturer Part Number: WM8351GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

Specifications of WM8351GEB/V

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, 4-Wire)
• Resolution: 12 bit
• Operating Supply Voltage: 3.7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC/2 DAC
• Supply Current: 260 uA
• Thd Plus Noise: - 83 dB
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 8
• No. Of Output Channels: 6
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 95dB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8351
Register B7h DCDC2 Control
w
REGISTER
ADDRESS
R183 (B7h)
DCDC2
Control
BIT
9:8
1:0
14
12
6
4
3
DC2_HIB_TRIG[1:0]
DC2_FBSRC[1:0]
DC2_HIB_MODE
DC2_MODE
DC2_RMPH
DC2_RMPL
DC2_ILIM
LABEL
DEFAULT
00
00
0
0
0
1
1
DC-DC2 Converter Mode
0 = Boost mode
1 = Switch mode
Reset by state machine.
DC-DC2 Hibernate behaviour:
0 = Continue as in Active state
1 = Disable converter output
Reset by state machine.
DC-DC2 Hibernate signal select
00 = HIBERNATE register bit
01 = L_PWR1
10 = L_PWR2
11 = L_PWR3
Note that Hibernate is also selected when a GPIO
Hibernate input is asserted.
Reset by state machine.
DC-DC2 peak current limit select
0 = Higher peak current
1 = Lower peak current
Reset by state machine. Default held in metal
mask.
DC-DC2 compensation ramp
{DC2_RMPH, DC2_RMPL}
00 = 20V < VOUT ≤ 30V
01 = 10V < VOUT ≤ 20V
10 = 5V < VOUT ≤ 10V
11 = VOUT ≤ 5V (will be chosen automatically if
DC2_FBSRC=11)
Reset by state machine. Default held in metal
mask.
DC-DC2 compensation ramp
{DC2_RMPH, DC2_RMPL}
00 = 20V < VOUT ≤ 30V
01 = 10V < VOUT ≤ 20V
10 = 5V < VOUT ≤ 10V
11 = VOUT ≤ 5V (will be chosen automatically if
DC2_FBSRC=11)
Reset by state machine. Default held in metal
mask.
DC-DC2 voltage feedback selection
00 = voltage feedback (using external resistor
divider on pin FB2)
01 = current sink ISINKA used as feedback
10 = Reserved
11 = voltage feedback (using internal resistor
divider on pin USB)
Reset by state machine. Default held in metal
mask.
DESCRIPTION
PD, March 2010, Rev 4.2
REFER TO
Production Data
294