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SAA7197

NXP
Part Number SAA7197
Manufacturer NXP
Description Clock Generator Circuit for desktop video systems CGC
Published Apr 8, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET SAA7197 Clock Generator Circuit for desktop video systems (CGC) Product specification Fi...
Datasheet PDF File SAA7197 PDF File

SAA7197
SAA7197

Overview
INTEGRATED CIRCUITS DATA SHEET SAA7197 Clock Generator Circuit for desktop video systems (CGC) Product specification File under Integrated Circuits, IC22 August 1996 Philips Semiconductors Product specification Clock Generator Circuit for desktop video systems (CGC) 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 QUICK REFERENCE DATA SYMBOL VDDA VDDD IDDA IDDD VLFCO fi VI VO Tamb 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 − − − − − − − − − GENERAL DESCRIPTION SAA7197 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).
MAX.
5.
5 5.
5 9 60 VDDA 8.
0 0.
8 VDDD 0.
6 VDDD 70 V V UNIT mA mA V MHz V V V V °C ORDERING INFORMATION EXTENDED TYPE NUMBER SAA7197P SAA7197T PACKAGE PINS 20 20 PIN POSITION DIP SO MATERIAL plastic plastic CODE SOT146-1 SOT163-1 August 1996 2 Philips Semiconductors Product specification Clock Generator Circuit for desktop video systems (CGC) BLOCK DIAGRAM SAA7197 handbook, full pagewidth V DDA 5 V DDD1 V DDD2 8 17 MS 1 SAA7197 LOOP FILTER MS = LOW VCO FREQUENCY DIVIDER 1:2 FREQUENCY DIVIDER 1:2 DELAY PRE-FILTER AND PULSE SHAPER 7 10 14 20 15 LLCA LLCB LLC2A LLC2B CREF PHASE DETECTOR LFCO 11 POWER-ON RESET 12 LFCO2 19 CE 2 16 LFCOSEL PORD V SSA V SSD 3 4 6, 9, 13, 18 RESN MEH461 Fig.
1 Block diag...


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