參數(shù)資料
型號(hào): SAA7370A
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Digital servo processor and Compact Disc decoder CD7
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: 14 X 14 MM, 2.70 MM HEIGHT, PLASTIC, MS-022, SOT-393-1, QFP-64
文件頁數(shù): 9/60頁
文件大小: 248K
代理商: SAA7370A
1998 Feb 26
9
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder (CD7)
SAA7370A
Table 1
Playback speeds
Notes
1.
Only if SELPLL = 1, then the CL11 output will be 22.5792 MHz, CL16 will be 33.8688 MHz and CL4 will be
8.4672 MHz.
The CL11 output is always a 5.6448 MHz clock if a 16.9344 MHz external clock is used and SELPLL = 0.
Data capture performance is not optimized for these options.
2.
3.
REGISTER B
REGISTER E
SELPLL
CRYSTAL FREQUENCY (MHz)
CL11 FREQUENCY
(MHz)
(2)
33.8688
16.9344
n = 2
(1)
n = 1
n = 4
(1)
n = 2
(3)
n = 8
(1)
n = 4
(3)
8.4672
n = 1
n = 2
n = 4
n = 8
(3)
00xx
00xx
01xx
10xx
10xx
11xx
00xx
00xx
01xx
10xx
0xxx
0xxx
0xxx
0xxx
0xxx
0xxx
1xxx
1xxx
1xxx
1xxx
0
1
0
0
1
0
0
1
0
1
n = 1
n = 2
n = 4
(3)
11.2896
11.2896
5.6448
11.2896
11.2896
5.6448
11.2896
11.2896
5.6448
11.2896
7.2
Crystal oscillator
The crystal oscillator is a conventional 2 pin design
operating between 8 MHz and 35 MHz. This oscillator is
capable of operating with ceramic resonators and with
both fundamental and third overtone crystals. External
components should be used to suppress the fundamental
output of the third overtone crystals as shown in
Figs 3 and 4. Typical oscillation frequencies required are
8.4672, 16.9344 or 33.8688 MHz depending on the
internal clock settings used and whether or not the clock
multiplier is enabled.
Fig.3 8.4672 MHz fundamental configuration.
8.4672 MHz
CRIN
CROUT
SAA7370A
22 pF
22 pF
330
100 k
OSCILLATOR
MBG779
Fig.4 33.8688 MHz overtone configuration.
OSCILLATOR
33.8688 MHz
CRIN
CROUT
SAA7370A
3.3
μ
H
1 nF
10 pF
10 pF
330
100 k
MBG778
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