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SAA7157

Features: · Clock generation suitable for digital TV systems (line-locked)· PLL frequency multiplier to generate 4 times of input frequency· Dividers to generate clocks LL1.5A, LL1.5B, LL3A and LL3B (4th and 2nd multiples of input frequency)· PLL mode or VCO mode selectable· Reset control and powe...

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SeekIC No. : 004484011 Detail

SAA7157: Features: · Clock generation suitable for digital TV systems (line-locked)· PLL frequency multiplier to generate 4 times of input frequency· Dividers to generate clocks LL1.5A, LL1.5B, LL3A and LL3B...

SAA7157 Data Sheet

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Part Number:
SAA7157
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

· Clock generation suitable for digital TV systems (line-locked)
· PLL frequency multiplier to generate 4 times of input frequency
· Dividers to generate clocks LL1.5A, LL1.5B, LL3A and LL3B (4th and 2nd multiples of input frequency)
· PLL mode or VCO mode selectable
· Reset control and power fail detection
· Suitable for applications with feature box and picture memory


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VDDA analog supply voltage (pin 5) -0.5 7.0 V
VDDD digital supply voltage (pins 8 and 17) -0.5 7.0 V
Vdiff GND difference voltage VDDA - VDDD - ±100 mV
VO output voltage (IOM = 20 mA) -0.5 VDDD V
Ptot total power dissipation (DIL20) 0 1.1 mV
Tstg storage temperature - 65 150 °C
Tamb operating ambient temperature 0 70 °C
VESD electrostatic handling(1) for all pins - tbf V
Notes
1. Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is recommended to take normal handling precautions appropriate to "Handling MOS devices".


Description

The SAA7157 generates all clock signals required for a digital TV system suitable for the SAA715x family and the SAA7199B (DENC). The circuit operates in either the phase-locked loop mode (PLL) or voltage controlled oscillator mode (VCO).




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