Features: • Supports ITU-R BT.601 (CCIR601) and Square Pixel
• 3 Composite Analog Inputs with Sync Tip AGC, Black Clamping and White Peak Control
• Patented Decoding Scheme with Improved 2-Line Comb Filter, Y/C Separation
• NTSC M and PAL (B, D, G, H, I, M, N, CN) Operation
• Composite or S-Video Input
• User-Selectable Color Trap and Low Pass Video Filters
• User Selectable Hue, Saturation, Contrast, Sharpness, and Brightness Controls
• User Selectable Data Transfer Output Modes
• 16-Bit 4:2:2 YCbCr
• 8-Bit 4:2:2 YCbCr
• User Selectable Clock Range from 20MHz - 30MHz
• I2C Interface
• VMI Compatible Video Data BusApplication• Multimedia PCs
• Video Conferencing
• Video Editing
• Video Security Systems
• Digital VCRs
• Related Products
- NTSC/PAL Encoders: HMP8154, HMP8156A, HMP8170/1, HMP8172/3
- NTSC/PAL Decoders: HMP8115, HMP8130/1Pinout
SpecificationsDigital Supply Voltage (VCC to GND) . . . . . . . . . . . . . . . . . . . . 7.0V
Digital Input Voltages . . . . . . . . . . . . . . . . . GND -0.5V to VCC 0.5V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1DescriptionThe HMP8112A is a high quality, digital video, color decoder with internal A/D converters. The A/D function includes a 3:1 analog input mux, Sync Tip AGC, Black clamping and two 8- bit A/D Converters. The high quality A/D converters minimize pixel jitter and crosstalk.
The decoder HMP8112A function is compatible with NTSC M, PAL B, D, G, H, I, M, N and special combination PAL N video standards. Both composite (CVBS) and S-Video (Y/C) input formats are supported. A 2-line comb filter plus a user selectable Chrominance trap filter provide high quality Y/C separation. Various adjustments are available to optimize the image such as Brightness, Contrast, Saturation, Hue and Sharpness controls. Video synchronization is achieved with a 4xfSC chroma burst lock PLL for color demodulation and line lock PLL for correct pixel alignment. A chrominance subsampling 4:2:2 scheme is provided to reduce chrominance bandwidth.
The HMP8112A is ideally suited as the analog video interface to VCR's and camera's in any multimedia or video system. The high quality Y/C separation, user flexibility and integrated phase locked loops are ideal for use with today's powerful compression processors. It operates from a single 5V supply and is TTL/CMOS compatible.
HMP8112A Data Sheet
