參數(shù)資料
型號: 935273916557
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PBGA156
封裝: 15 X 15 MM, 1.15 MM HEIGHT, PLASTIC, MS-034, SOT-472-1, BGA-156
文件頁數(shù): 71/178頁
文件大?。?/td> 988K
代理商: 935273916557
2004 Jul 22
162
Philips Semiconductors
Product specication
Multistandard video decoder with adaptive
comb lter and component video input
SAA7118
16.3
Audio clock generation part
The given values force the following behaviour of the SAA7118 audio clock generation part:
Used crystal is 24.576 MHz
Expected field frequency is 59.94 Hz (e.g. NTSC M standard)
Generated audio master clock frequency at pin AMCLK is 256 × 44.1 kHz = 11.2896 MHz
AMCLK is externally connected to AMXCLK [short-cut between pins P11 (72) and M12 (76)]
ASCLK = 32 × 44.1 kHz = 1.4112 MHz
ALRCLK is 44.1 kHz.
Table 142 Audio clock part set-up values
Note
1. All X values must be set to logic 0.
SUB
ADDRESS
(HEX)
REGISTER FUNCTION
BIT NAME(1)
START VALUES
76543210
HEX
30
audio master clock cycles per
eld; bits D7 to D0
ACPF7 to ACPF0
1
0
1
0
BC
31
audio master clock cycles per
eld; bits D15 to D8
ACPF15 to ACPF8
1
0
1
DF
32
audio master clock cycles per
eld; bits D17 and D16
X, X, X, X, X, X, ACPF17
and ACPF16
00000010
02
33
reserved
X, X, X, X, X, X, X, X
0
00
34
audio master clock nominal
increment; bits D7 to D0
ACNI7 to ACNI0
1
0
1
0
1
CD
35
audio master clock nominal
increment; bits D15 to D8
ACNI15 to ACNI8
1
0
1
0
CC
36
audio master clock nominal
increment; bits D21 to D16
X, X, ACNI21 to ACNI16
0
1
0
1
0
3A
37
reserved
X, X, X, X, X, X, X, X
0
00
38
clock ratio AMXCLK to ASCLK
X, X, SDIV5 to SDIV0
0
1
03
39
clock ratio ASCLK to ALRCLK
X, X, LRDIV5 to LRDIV0
0
1
0
10
3A
audio clock generator basic
set-up
X, X, X, X, APLL, AMVR, LRPH,
SCPH
00000000
00
3B to 3F
reserved
X, X, X, X, X, X, X, X
0
00
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