WM8310GEB/V Wolfson Microelectronics, WM8310GEB/V Datasheet - Page 50

• 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
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The register fields that control the FLL are described in Table 20.
R16530 (4092h)
FLL Control 1
R16531 (4093h)
FLL Control 2
R16532 (4094h)
FLL Control 3
R16533 (4095h)
FLL Control 4
ADDRESS
13:8
15:0
14:5
BIT
6:4
2:0
3:0
2
0
FLL_FRAC
FLL_ENA
FLL_OUTDIV
[5:0]
FLL_CTRL_R
ATE [2:0]
FLL_FRATIO
[2:0]
FLL_K [15:0]
FLL_N [9:0]
FLL_GAIN
[3:0]
LABEL
DEFAULT
000000
0000h
177h
0000
000
000
0
0
Fractional enable
0 = Integer Mode
1 = Fractional Mode
Integer mode offers reduced power
consumption. Fractional mode
offers best FLL performance,
provided also that N.K is a non-
integer value.
FLL Enable
0 = Disabled
1 = Enabled
Note - this bit is reset to 0 when
the OFF power state is entered.
F
000000 = Reserved
000001 = Reserved
000010 = Reserved
000011 = 4
000100 = 5
000101 = 6
…
111110 = 63
111111 = 64
(F
Frequency of the FLL control block
000 = F
value)
001 = F
010 = F
011 = F
100 = F
101 = F
110 = F
111 = F
Recommended that this register is
not changed from default.
F
000 = 1
001 = 2
010 = 4
011 = 8
1XX = 16
000 recommended for high F
011 recommended for low F
Fractional multiply for F
(MSB = 0.5)
Integer multiply for F
(LSB = 1)
Gain applied to error
0000 = x 1 (Recommended value)
0001 = x 2
0010 = x 4
OUT
VCO
OUT
clock divider
clock divider
= F
PP, December 2009, Rev 3.0
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
VCO
DESCRIPTION
/ 1 (Recommended
/ 2
/ 3
/ 4
/ 5
/ 6
/ 7
/ 8
/ FLL_OUTDIV)
REF
Pre-Production
REF
REF
REF
50