参数资料
型号: UDA1380TT
厂商: NXP SEMICONDUCTORS
元件分类: 消费家电
英文描述: Stereo audio coder-decoder for MD, CD and MP3
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO32
封装: 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT-487-1, TSSOP-32
文件页数: 25/68页
文件大小: 426K
代理商: UDA1380TT
2004 Apr 22
31
NXP Semiconductors
Product specification
Stereo audio coder-decoder
for MD, CD and MP3
UDA1380
Table 19 Dividers for system clock input
Table 20 WSPLL settings
4
DAC_CLK
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
128fs and 256fs (for the analog part), but in one case the clock is derived from
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.
3 and 2
sys_div[1:0]
Dividers for system clock input. A 2-bit value to select the proper division
factor for the SYSCLK input in such a way that a128fs clock will be generated
from the SYSCLK clock signal. The 128fs clock is needed for clocking the
decimator and interpolator. Default value 00, see Table 19.
1 and 0
PLL[1:0]
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 128fs and a 256fs clock. Default
value 10, see Table 20.
sys_div1
sys_div0
INPUT CLOCK ON PIN SYSCLK
0
256fs (default)
0
1
384fs
1
0
512fs
1
768fs
PLL1
PLL0
INPUT FREQUENCY RANGE (kHz) ON PIN WSI
0
6.25 to 12.5
0
1
12.5 to 25
1
0
25 to 50 (default)
11
50 to 100
BIT
SYMBOL
DESCRIPTION
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