參數(shù)資料
型號(hào): SAA7157T
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): XO, clock
英文描述: Clock signal generator circuit for digital TV systems SCGC
中文描述: 29 MHz, VIDEO CLOCK GENERATOR, PDSO20
封裝: PLASTIC, SO-20
文件頁(yè)數(shù): 8/12頁(yè)
文件大小: 80K
代理商: SAA7157T
May 1992
8
Philips Semiconductors
Product specification
Clock signal generator circuit for digital TV
systems (SCGC)
SAA7157
Fig.4 Reset procedure.
handbook, full pagewidth
VDDD
MEH457
oscillation
oscillation disturbed
td
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
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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