WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 237

• Manufacturer Part Number: WM8311GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 121BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8311GEB/V

• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 7
• Digital Ic Case Style: BGA
• No. Of Pins: 121
• No. Of Regulated Outputs: 9
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pre-Production
REGISTER
R16473
(4059h) DC1
SLEEP
Control
Register 4059h DC1 SLEEP Control
REGISTER
R16474
(405Ah)
DC1 DVS
Control
w
ADDRESS
ADDRESS
15:13
12:11
BIT
BIT
9:8
6:0
6:0
DC1_SLP_SLO
DC1_SLP_VSE
DC1_SLP_MO
DC1_DVS_SR
DC1_DVS_VS
LABEL
LABEL
DE[1:0]
EL[6:0]
C[1:0]
T[2:0]
L[6:0]
DEFAULT
DEFAULT
000_0000 DC-DC1 SLEEP Voltage select
000_0000 DC-DC1 DVS Voltage select
000
11
00
DC-DC1 SLEEP Slot select
000 = SLEEP voltage / operating mode transition in
Timeslot 5
001 = Disable in Timeslot 5
010 = Disable in Timeslot 4
011 = Disable in Timeslot 3
100 = Disable in Timeslot 2
101 = Disable in Timeslot 1
110 = SLEEP voltage / operating mode transition in
Timeslot 3
111 = SLEEP voltage / operating mode transition in
Timeslot 1
If DC-DC1 is assigned to a Hardware Enable Input,
then codes 001-101 select in which timeslot the
converter enters its SLEEP condition.
DC-DC1 SLEEP Operating Mode
00 = Forced Continuous Conduction Mode
01 = Continuous / Discontinuous Conduction with
Pulse-Skipping
10 = LDO Mode
11 = Hysteretic Mode
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-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
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
WM8311
237