Semiconductor
HMP8112
NTSC/PAL Video Decoder
March 1998
Features
Description
• Supports ITU-R BT.601 (CCIR601) and Square Pixel
The HMP8112 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.
• 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
The decoder function is compatible with NTSC M, PAL B, D,
G, H, I, M, N and special combination PAL N video stan-
dards. Both composite (CVBS) and S-Video (Y/C) input for-
mats 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
• NTSC M, N, 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
a 4xf
chroma burst lock PLL for color demodulation and
SC
line lock PLL for correct pixel alignment. A chrominance sub-
sampling 4:2:2 scheme is provided to reduce chrominance
bandwidth.
• User Selectable Data Transfer Output Modes
- 16-Bit 4:2:2 YCbCr
- 8-Bit 4:2:2 YCbCr
The HMP8112 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 inte-
grated phase locked loops are ideal for use with today’s pow-
erful compression processors. The HMP8112 operates from
a single 5V supply and is TTL/CMOS compatible.
• User Selectable Clock Range from 20MHz - 30MHz
2
• I C Interface
• VMI Compatible Video Data Bus
Applications
Ordering Information
• Multimedia PCs
TEMP.
o
• Video Conferencing
• Video Editing
PART NUMBER RANGE ( C)
PACKAGE
PKG.NO.
HMP8112CN
0 to 70
80 Ld PQFP†
Q80.14x20
HMP8112EVAL2 PCI Reference Design (Includes Part)
• Video Security Systems
• Settop Boxes (Cable, Satellite, and Telco)
• Digital VCRs
HMP8156EVAL2 Frame Grabber Evaluation Board
(Includes Part)
† PQFP is also known as QFP and MQFP
• Related Products
Table of Contents
Page
- NTSC/PAL Encoders: HMP8154, HMP8156,
HMP8171, HMP8173
Functional Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . 2
Functional Operation Introduction. . . . . . . . . . . . . . . . . . . 6
Internal Register Description Tables. . . . . . . . . . . . . . . . . 14
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
AC and DC Electrical Specifications. . . . . . . . . . . . . . . . . 24
Typical Performance Curves. . . . . . . . . . . . . . . . . . . . . . . 27
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
- NTSC/PAL Decoders: HMP8115
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
File Number 4221.3
Copyright © Harris Corporation 1998
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