SAA4945H Description
PARAMETER supply voltage (pins 5, 29 and 30) supply current power dissipation clock frequency bus clock frequency operating ambient temperature ±7%; note 1 CONDITIONS − − 10 − 0 MIN. 5.0 − − GENERAL DESCRIPTION SAA4945H The SAA4945H, LIMERIC (LIne MEmory noise Reduction IC) is a 2-D recursive noise reduction filter for both luminance and colour difference signals.
SAA4945H Key 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
- munication by means of serial munication 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 samp
- 8-bit wide data processing for Y, U and V; in unsigned format (Y signal) and in 2’s plement (U and V signals)
- One fixed line locked clock operation frequency up to 16 MHz (typical)
- Exactly one line delay. QUICK REFERENCE DATA SYMBOL VDD IDD P fCLK fSNERT Tamb Note 1. Maximum number of clocks per line
- 0 MIN. 4.5 70 350 16