UMA1021M/C2 Philips Semiconductors (Acquired by NXP), UMA1021M/C2 Datasheet - Page 31

• Manufacturer Part Number: UMA1021M/C2
• Description: UDA1380; Stereo Audio Coder-decoder For MD, CD And MP3
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Table 19 Dividers for system clock input
Table 20 WSPLL settings
2003 Apr 04
Stereo audio coder-decoder
for MD, CD and MP3
sys_div1
3 and 2
1 and 0
PLL1
BIT
4
0
0
1
1
0
0
1
1
DAC_CLK
sys_div[1:0]
PLL[1:0]
SYMBOL
sys_div0
PLL0
0
1
0
1
0
1
0
1
DAC clock select. A 1-bit value to select the clocks for the DAC
(interpolator and FSDAC analog block). In both cases the clocks must be
128f
the WSI clock, and in the other case the clock is derived from the SYSCLK.
When this bit is logic 0: SYSCLK is used. When this bit is logic 1: WSPLL is
used. Default value 0.
Dividers for system clock input. A 2-bit value to select the proper division
factor for the SYSCLK input in such a way that a128f
from the SYSCLK clock signal. The 128f
decimator and interpolator. Default value 00, see Table 19.
WSPLL setting. A 2-bit value to select the WSPLL input frequency range.
These set the proper divider setting for the WSPLL. The input is the
WSI signal, the output inside the IC is a 128f
value 10, see Table 20.
s
and 256f
INPUT FREQUENCY RANGE (kHz) ON PIN WSI
s
(for the analog part), but in one case the clock is derived from
31
INPUT CLOCK ON PIN SYSCLK
25 to 50 (default)
DESCRIPTION
256f
6.25 to 12.5
12.5 to 25
50 to 100
s
384f
512f
768f
(default)
s
s
s
s
clock is needed for clocking the
s
and a 256f
s
clock will be generated
s
clock. Default
Product specification
UDA1380