SAA7197 Datasheet, PDF (2/16 Pages) NXP Semiconductors – Clock Generator Circuit for desktop video systems CGC

Philips Semiconductors
Product specification
Clock Generator Circuit for desktop video systems (CGC) SAA7197
FEATURES
• Suitable for Desktop Video systems
• Two different sync sources selectable
• PLL frequency multiplier to generate 4 times of input
frequency
• Dividers to generate clocks LLCA, LLCB, LLC2A and
LLC2B (2nd and 4th multiples of input frequency)
• PLL mode or VCO mode selectable
• Reset control and power fail detection
GENERAL DESCRIPTION
The SAA7197 generates all clock signals required for a
digital TV system suitable for the SAA719x family. The
circuit operates in either the phase-locked loop mode
(PLL) or voltage controlled oscillator mode (VCO).
QUICK REFERENCE DATA
SYMBOL
V_DDA
V_DDD
I_DDA
I_DDD
V_LFCO
f_i
V_I
V_O
T_amb
PARAMETER
analog supply voltage (pin 5)
digital supply voltage (pins 8, 17)
analog supply current
digital supply current
LFCO input voltage (peak-to-peak value)
input frequency range
input voltage LOW
input voltage HIGH
output voltage LOW
output voltage HIGH
operating ambient temperature range
MIN.
4.5
4.5
3
10
1
5.5
0
2.0
0
2.6
0
TYP.
5.0
5.0
−
−
−
−
−
−
−
−
−
MAX.
5.5
5.5
9
60
V_DDA
8.0
0.8
V_DDD
0.6
V_DDD
70
UNIT
V
V
mA
mA
V
MHz
V
V
V
V
°C
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
SAA7197P
SAA7197T
PINS
20
20
PIN POSITION
DIP
SO
PACKAGE
MATERIAL
plastic
plastic
CODE
SOT146-1
SOT163-1
August 1996
2