參數(shù)資料
型號(hào): SAA7157T-T
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 時(shí)鐘產(chǎn)生/分配
英文描述: 29 MHz, VIDEO CLOCK GENERATOR, PDSO20
文件頁(yè)數(shù): 11/12頁(yè)
文件大?。?/td> 68K
代理商: SAA7157T-T
May 1992
8
Philips Semiconductors
Product specication
Clock signal generator circuit for digital TV
systems (SCGC)
SAA7157
Fig.4 Reset procedure.
handbook, full pagewidth
MEH457
oscillation
oscillation disturbed
td
normal
operation
normal
operation
power failure
starts a new
reset procedure
reset time
clock HIGH
during
internal reset
PLL lock-on
0 V
+3.5 V
power-on
VDDA
VDDD
LFCO
RESN
LL1.5A
LL1.5B
LL3A
LL3B
Fig.5 Internal circuit.
handbook, full pagewidth
1
2
16
19
MS
CE
LFCOSEL
LFCO2
11
LFCO
VDDD
VSSD
7
10
14
15
20
LL1.5A
LL1.5B
LL3A
LL3B
CREF
12
RESN
MEH468
VDDD
VSSD
VDDD
VSSD
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