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SAA7191B

Features: · Separate 8-bit luminance (Y or CVBS) and 8-bit chrominance inputs (CVBS or C) from CVBS, Y/C, S-Video (S-VHS or Hi8) sources· Luminance and chrominance signal processing for standards PAL-B/G, NTSC-M, SECAM· Horizontal and vertical sync detection for all standards· Real-time control ou...

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SeekIC No. : 004484025 Detail

SAA7191B: Features: · Separate 8-bit luminance (Y or CVBS) and 8-bit chrominance inputs (CVBS or C) from CVBS, Y/C, S-Video (S-VHS or Hi8) sources· Luminance and chrominance signal processing for standards PA...

SAA7191B Data Sheet

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Part Number:
SAA7191B
Supply Ability:
5000

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

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Product Details

Description



Features:

· Separate 8-bit luminance (Y or CVBS) and 8-bit chrominance inputs (CVBS or C) from CVBS, Y/C, S-Video (S-VHS or Hi8) sources
· Luminance and chrominance signal processing for standards PAL-B/G, NTSC-M, SECAM
· Horizontal and vertical sync detection for all standards
· Real-time control output RTCO to be used for frequency-locked digital video encoder (SAA7199B). RTCO contains serialized information about actual clock frequency, subcarrier frequency and PAL/SECAM sequence.
· Controls via the I2C-bus
· User programmable aperture correction (horizontal peaking)
· Compatible with memory-based features (line-locked clock)
· Cross-colour reduction by chrominance comb-filtering (NTSC) or by special cross colour cancellation (SECAM)
· 8-bit quantization of input signals
· 768/640 active samples per line equals 50/60 Hz (SQP)
· The YUV bus supports data rates of 780×fH equal to 12.2727 MHz for 60 Hz (NTSC-M) and 944×fH equal to 14.75 MHz for 50 Hz (PAL-B/G, SECAM) in 4 : 1 : 1 or 4 : 2 : 2 formats (via the I2C-bus)
· One crystal oscillator of 26.8 MHz


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VDD supply voltage (pins 5, 18, 28, 37, 52) -0.5 7.0 V
Vdiff GND difference voltage VSS A - VSS (1 to 4) - ±100 mV
VI voltage on all inputs -0.5 VDD+0.5 V
VO voltage on all outputs (IO max = 20 mA) -0.5 VDD+0.5 V
Ptot total power dissipation - 2.5 W
Tstg storage temperature range -65 150 °C
Tamb operating ambient temperature range 0 70 °C
VESD electrostatic handling(1) for all pins - ±2000 V
Note
1. Equivalent to discharging a 100 pF capacitor through an 1.5 k series resistor.


Description

The SAA7191B is a digital multistandard colour decoder suitable for 8-bit CVBS input signals or for 8-bit luminance and 8-bit chrominance input signals (Y/C).

The SAA7191B is down-compatible with SAA7191. It has additional outputs RTCO, GPSW0 and ODD. These new outputs are in high-impedance state when NFEN-bit = 0.




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