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SAA4945H

Features: ` 2-D adaptive vertically recursive noise reduction` Noise reduction for Y, U and V signals in 4 : 1 : 1 format` Single 5 V ±10% power supply` Communication by means of serial communication protocol 83C654 (SNERT bus)` Via SNERT bus, 10 different types of noise reduction selectable; the ...

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SeekIC No. : 004483903 Detail

SAA4945H: Features: ` 2-D adaptive vertically recursive noise reduction` Noise reduction for Y, U and V signals in 4 : 1 : 1 format` Single 5 V ±10% power supply` Communication by means of serial communicatio...

SAA4945H Data Sheet

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Part Number:
SAA4945H
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:

` 2-D adaptive vertically recursive noise reduction
` Noise reduction for Y, U and V signals in 4 : 1 : 1 format
` Single 5 V ±10% power supply
` Communication by means of serial communication protocol 83C654 (SNERT bus)
` Via SNERT bus, 10 different types of noise reduction selectable; the noise reduction function can also be disabled
` Phase relation write enable input/output signal simultaneously switchable over one clock period w.r.t. input/output samples
` 8-bit wide data processing for Y, U and V; in unsigned format (Y signal) and in 2's complement (U and V signals)
` One fixed line locked clock operation frequency up to 16 MHz (typical)
` Exactly one line delay.


Pinout

Connection Diagram


Specifications

SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VDD1

VDD2

VI

Tstg

Tamb

Ptot

PO(pin)		 supply voltage 1

supply voltage 2

input voltage

storage temperature

operating ambient temperature

total power dissipation

output power dissipation per output pin		 -0.5

-0.5

-0.5

-55

-40

-

-		 +6.5

+6.5

+6.5

+150

+85

150

100		 V

V

V

°C

°C

mW

mW



Description

The SAA4945H, LIMERIC (LIne MEmory noise Reduction IC) is a 2-D recursive noise reduction filter for both luminance and colour difference signals. The noise reduction is automatically adapted to the global noise level in the image. Ten different preferences of noise reduction can be set using a synchronous receiver transmitter bus; SNERT (Synchronous No parity Eight bit Receive Transmit) bus. Alternatively, the noise reduction can be switched off. The SAA4945H LIMERIC is generally placed directly after the ADC in the feature box and works fully in the 1fh (50/60 Hz) domain.




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