WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 231

• 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
R16463
(404Fh)
Current Sink
2
Register 404Fh Current Sink 2
w
ADDRESS
11:10
BIT
9:8
5:0
15
14
13
12
CS2_ON_RAM
CS2_ISEL[5:0]
CS2_SLPENA
CS2_OFF_RA
CS2_DRIVE
CS2_ENA
CS2_STS
LABEL
MP[1:0]
P[1:0]
DEFAULT
00_0000
01
01
0
0
0
0
Current Sink 2 Enable (ISINK2 pin)
0 = Disabled
1 = Enabled
Note - this bit is reset to 0 when the OFF power state is
entered.
Current Sink 2 output drive enable
0 = Disabled
1 = Enabled
Current Sink 2 status
0 = Normal
1 = Sink current cannot be regulated
Current Sink 2 SLEEP Enable
0 = Disabled
1 = Controlled by CS2_ENA
ISINK2 Switch-Off ramp
00 = instant (no ramp)
01 = 1 step every 4ms (220ms)
10 = 1 step every 8ms (440ms)
11 = 1 step every 16ms (880ms)
The time quoted in brackets is valid for the maximum
change in current drive setting. The actual time scales
according to the extent of the change in current drive
setting.
ISINK2 Switch-On ramp
00 = instant (no ramp)
01 = 1 step every 4ms (220ms)
10 = 1 step every 8ms (440ms)
11 = 1 step every 16ms (880ms)
The time quoted in brackets is valid for the maximum
change in current drive setting. The actual time scales
according to the extent of the change in current drive
setting.
ISINK2 current.
Current = 2.0μA × 2^(CS2_ISEL/4), where CS2_ISEL
is an unsigned binary number.
Alternatively,
CS2_ISEL = 13.29 x LOG(current/2.0μA)
00_0000 = 2.0μA
11_0111 = 27.6mA
Values greater than 11_0111 will result in the maximum
current of approx 27.6mA.
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
WM8311
231