wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 131
wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
wm8351CGBE/RV
Manufacturer:
WOLFSON
Quantity:
2 642
Part Number:
wm8351G
Manufacturer:
WOLFSON
Quantity:
20 000
Company:
Part Number:
wm8351GEB/RV
Manufacturer:
ST
Quantity:
3 186
- Current page: 131 of 328
- Download datasheet (3Mb)
Production Data
w
The DC2_ILIM bits defined in Table 76 should be set according to the intended output load
conditions.
R183 (B7h)
DC-DC2 Control
Table 76 Operating Mode Control for DC-DC Converter 2
DC-DC Converter 2 can also be controlled by the device HIBERNATE bit, or by hardware input
signals L_PWR1, L_PWR2 and L_PWR3. Several GPIO pins can be assigned as L_PWR pins. The
converter can be assigned to one of these three signals, or else to the device HIBERNATE bit. The
signals are active high and the converter’s response to the selected signal is programmable as
defined in Table 77.
Note that, when a GPIO pin is configured as a Hibernate input pin, and this input is asserted, then all
DC-DC Converters will be placed in Hibernate mode.
In order to use GPIO pins as L_PWR pins, they must be configured by setting the respective
GPn_FN, and GPn_DIR bits to the appropriate value (see Section 20).
ADDRESS
BIT
4:3
1:0
14
6
DC2_MODE
DC2_ILIM
DC2_RMPH
DC2_RMPL
DC2_FBSRC
[1:0]
LABEL
DEFAULT
01
00
0
0
DC-DC2 Converter Mode
0 = boost mode
1 = switch mode
DC-DC2 peak current limit select
0 = Higher peak current
1 = Lower peak current
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)
DC-DCn voltage feedback selection
00 = voltage feedback (using external
resistor divider on pin FBn)
01 = current sink ISINKA used as
feedback
10 = Reserved
11 = voltage feedback (using internal
resistor divider on pin USB)
DESCRIPTION
PD, June 2009, Rev 4.1
WM8351
131
Related parts for wm8351
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
24-bit, 192khz 6-channel Dac With Volume Control
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
24-bit, 192khz 6-channel Dac
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
HI FI AND TELEPHONY DUAL CODEC
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Stereo Codec Portable Audio Applications
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Stereo Codec For Portable Audio Applications
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Multichannel Codec With S/pdif Transceiver
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Ac97 Audio Codec Mixer With Integrated Headphone Driver
Manufacturer:
Wolfson Microelectronics plc
Datasheet:
Part Number:
Description:
Ac-link Interface Audio Dac
Manufacturer:
Wolfson Microelectronics plc
Datasheet: