WM8310GEB/V Wolfson Microelectronics, WM8310GEB/V Datasheet - Page 222

• Manufacturer Part Number: WM8310GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 169BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8310GEB/V

• Supply Voltage: 7V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 11
• Digital Ic Case Style: BGA
• No. Of Pins: 169
• No. Of Regulated Outputs: 13
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

WM8310
REGISTER
Register 4059h DC1 SLEEP Control
REGISTER
R16474
(405Ah)
DC1 DVS
Control
Register 405Ah DC1 DVS Control
REGISTER
R16475
(405Bh)
DC2 Control
1
w
ADDRESS
ADDRESS
ADDRESS
12:11
15:14
BIT
BIT
BIT
6:0
9:8
5:4
12
7
DC2_FREQ[1:0
DC2_RATE[1:0
DC1_DVS_SR
DC1_DVS_VS
DC2_SOFT_S
DC2_PHASE
TART[1:0]
DC2_FLT
LABEL
LABEL
LABEL
EL[6:0]
C[1:0]
]
]
DEFAULT
DEFAULT
DEFAULT
000_0000 DC-DC1 DVS Voltage select
00
10
00
00
1
0
68h to 7Fh = 1.8V
Note - Maximum output voltage selection in 4MHz
switching mode is 48h (1.4V).
DC-DC1 DVS Control Source
00 = Disabled
01 = Enabled
10 = Controlled by Hardware DVS1
11 = Controlled by Hardware DVS2
0.6V to 1.8V in 12.5mV steps
00h to 08h = 0.6V
09h = 0.6125V
…
48h = 1.4V (see note)
…
67h = 1.7875V
68h to 7Fh = 1.8V
Note - Maximum output voltage selection in 4MHz
switching mode is 48h (1.4V).
DC-DC2 Voltage Ramp rate
00 = 1 step every 32us
01 = 1 step every 16us
10 = 1 step every 8us
11 = Immediate voltage change
DC-DC2 Clock Phase Control
0 = Normal
1 = Inverted
DC-DC2 Switching Frequency
00 = Reserved
01 = 2.0MHz
10 = Reserved
11 = 4.0MHz
DC-DC2 Output float
0 = DC-DC2 output discharged when disabled
1 = DC-DC2 output floating when disabled
DC-DC2 Soft-Start Control
(Current limiting is stepped through 8 intermediate
steps.)
00 = 31.25us steps (250us max total)
01 = 62.5us steps (500us max total)
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
REFER TO
Pre-Production
222