WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 265

• 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
R30737
(7811h) DC1
OTP Control
Register 7811h DC1 OTP Control
REGISTER
R30738
(7812h) DC2
OTP Control
w
ADDRESS
ADDRESS
15:13
15:13
BIT
BIT
9:8
6:2
1:0
7
DC1_FREQ[1:0
DC1_ON_SLO
DC1_ON_VSE
DC1_CAP[1:0]
DC2_ON_SLO
DC1_PHASE
LABEL
LABEL
T[2:0]
L[4:0]
T[2:0]
]
DEFAULT
DEFAULT
0_0000
000
000
00
00
0
DC-DC1 ON Slot select
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
DC-DC1 Switching Frequency
00 = Reserved
01 = 2.0MHz
10 = Reserved
11 = 4.0MHz
DC-DC1 Clock Phase Control
0 = Normal
1 = Inverted
DC-DC1 ON Voltage select
DC1_ON_VSEL[6:0] selects the DC-DC1 output
voltage from 0.6V to 1.8V in 12.5mV steps.
DC1_ON_VSEL[6:2] controls the voltage in 50mV
steps.
DC1_ON_VSEL[6:0] is coded as follows:
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 Output Capacitor
00 = 4.7uF to 20uF
01 = Reserved
10 = 22uF to 47uF
11 = Reserved
DC-DC2 ON Slot select
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
WM8311
265