wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 51

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

w
Pre-Production
Table 17 Example FLL Settings
32.000
kHz
32.000
kHz
32.768
kHz
32.768
kHz
32.768
kHz
48
kHz
11.3636
MHz
12.000
MHz
12.000
MHz
12.288
MHz
12.288
MHz
13.000
MHz
13.000
MHz
19.200
MHz
19.200
MHz
F
REF
12.288
MHz
11.2896
MHz
12.288
MHz
11.288576
MHz
11.2896
MHz
12.288
MHz
12.368544
MHz
12.288
MHz
11.289597
MHz
12.288
MHz
11.2896
MHz
12.287990
MHz
11.289606
MHz
12.287988
MHz
11.289588
MHz
F
OUT
EXAMPLE FLL SETTINGS
Table 17 provides example FLL settings for generating common SYSCLK frequencies from a variety
of low and high frequency reference inputs.
98.304
MHz
90.3168
MHz
98.304
MHz
90.308608
MHz
90.3168
MHz
98.304
MHz
98.948354
MHz
98.3040
MHz
90.3168
MHz
98.304
MHz
90.3168
MHz
98.3040
MHz
90.3168
MHz
98.3040
MHz
90.3168
MHz
F
VCO
438
(1B6h)
352
(160h)
428
(1ACh)
344
(158h)
344
(158h)
292
(124h)
8
(008h)
8
(008h)
7
(007h)
2
(002h)
7
(007h)
7
(007h)
6
(006h)
5
(005h)
4
(004h)
FLL_N
0.857143
(DB6Eh)
0.8
(CCCCh)
0.571429
(9249 h)
0.500000
(8000 h)
0.53125
(8800h)
0.571429
(9249 h)
0.707483
(B51Dh)
0.192
(3127h)
0.526398
(86C2h)
0.666667
(AAABh)
0.35
(599Ah)
0.56184
(8FD5h)
0.94745
(F28Ch)
0.119995
(1EB8h)
0.703995
(B439h)
FLL_K
7
8
7
8
8
7
1
1
1
3
1
1
1
1
1
FRATIO
FLL_
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
2h
(divide by 8)
FLL_OUTDIV
PP, April 2009, Rev 3.0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
FRAC
FLL_
WM8400
FLL_REF_
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
FREQ
51