SAA7197 Datasheet, PDF (8/16 Pages) NXP Semiconductors – Clock Generator Circuit for desktop video systems CGC

Philips Semiconductors
Clock Generator Circuit for desktop video systems (CGC)
Product specification
SAA7197
handbook, full pagewidth
V _DDA
V _DDD
power-on
LFCO
oscillation
oscillation disturbed
+3.5 V
0V
RESN
LLCA
LLCB
LLC2A
LLC2B
t_d
normal
operation
t_d
normal
operation
clock HIGH
during
internal reset
reset
time
PLL lock-on
power failure
starts a new
reset procedure
Fig.4 Reset procedure.
MEH467
handbook, full pagewidth
1
2
16
19
MS
CE
LFCOSEL
LFCO2
11
LFCO
V_DDD
V_SSD
August 1996
Fig.5 Internal circuit.
8
7
V_DDD 10
14
15
20
LLCA
LLCB
LLC2A
LLC2B
CREF
V_SSD
V_DDD
12
RESN
V_SSD
MEH469