WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 111

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

w
Pre-Production
12
12
13
13
14.4
14.4
19.2
19.2
19.68
19.68
19.8
19.8
24
24
26
26
27
27
MCLK
(MHZ)
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
11.2896
12.288
SYSCLK
(MHZ)
The required settings for this example are:
EXAMPLE PLL SETTINGS
Table 65 provides example PLL settings for generating common SYSCLK frequencies from a variety
of MCLK reference frequencies.
Table 65 PLL Frequency Examples
•
•
•
•
•
•
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
MCLK_DIV = 10b
PRESCALE = 0b
PLL_ENA = 1
SDM = 1
PLLN = 8 = 8h
PLLK = 0.192 = 3126h
MCLKDIV
4 * MCLKDIV
= SYSCLK *
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
90.3168
98.304
F2
PRESCALE
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
12
12
13
13
14.4
14.4
9.6
9.6
9.84
9.84
9.9
9.9
12
12
13
13
13.5
13.5
PRESCALE
= MCLK/
F1
7.5264
8.192
6.947446
7.561846
6.272
6.826667
9.408
10.24
9.178537
9.990243
9.122909
9.929697
7.5264
8.192
6.947446
7.561846
6.690133
7.281778
= F2/F1
R
PP, May 2008, Rev 3.1
7h
8h
6h
7h
6h
6h
9h
Ah
9h
9h
9h
9h
7h
8h
6h
7h
6h
7h
N
WM8959
86C2h
3126h
F28Bh
8FD5h
45A1h
D3A0h
6872h
3D70h
2DB4h
FD80h
1F76h
EE00h
86C2h
3126h
F28Bh
8FD5h
B0ACh
4822h
K
111