參數(shù)資料
型號(hào)： SAA7325H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Digital servo processor and Compact Disc decoder with integrated DAC CD10
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： PLASTIC, SOT-393-1, QFP-64
文件頁(yè)數(shù)： 43/68頁(yè)
文件大小： 273K
代理商： SAA7325H
1999 Jun 17
43
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC (CD10)
SAA7325
Table 15
Loop filter bandwidth
Note
1.
The initial column shows the Power-on reset state.
7.15.5
S
UMMARY OF FUNCTIONS CONTROLLED BY SHADOW REGISTERS
Table 16
Shadow register settings
REGISTER
ADDRESS
DATA
FUNCTION
INITIAL
(1)
LOOP
BANDWIDTH
(Hz)
INTERNAL
BANDWIDTH
(Hz)
LOW-PASS
BANDWIDTH
(Hz)
8
(PLL loop filter
bandwidth)
1000
0000
0001
0010
0100
0101
0110
1000
1001
1010
1100
1101
1110
1640
3279
6560
1640
3279
6560
1640
3279
6560
1640
3279
6560
525
263
131
1050
525
263
2101
1050
525
4200
2101
1050
8400
16800
33600
8400
16800
33600
8400
16800
33600
8400
16800
33600
reset
SHADEN BIT
SHADOW
REGISTER
ADDRESS
DATA
FUNCTION
INITIAL
1
3
control of
versatile and
clock pins
0011
XXX0
XXX1
XX0X
XX1X
X0XX
X1XX
0XXX
1XXX
XXX0
XXX1
XX0X
select CL4 on CL11/4 output
select CL11 on CL11/4 output
enable CL11/4 output pin
set CL11/4 output pin to high-impedance
enable CL16 output pin
set CL16 output pin to high-impedance
V2/V3 pin configured as V2 input
V2/V3 pin configured as V3 output (open-drain)
hold onboard DAC outputs at zero
enable onboard DAC outputs
use external DAC or route audio data into
onboard DAC (loopback mode)
route audio data into onboard DAC
(non-loopback mode)
use internal reference for servo reference
voltage
use external reference for servo reference
voltage
reset
reset
reset
reset
reset
reset
7
control of
onboard DAC
0111
XX1X
7
servo
reference
pin 7, V
RIN
X1XX
reset
X0XX
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