Semiconductor
March 1998
NOT
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EW
RN
D FO
NDE P8115
ME
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C O M Se e H
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IG
D ES
NS
HMP8112A
NTSC/PAL Video Decoder
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
• I
2
C Interface
• VMI Compatible Video Data Bus
Description
The 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 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
a 4xf
SC
chroma burst lock PLL for color demodulation and
line lock PLL for correct pixel alignment. A chrominance sub-
sampling 4:2:2 scheme is provided to reduce chrominance
bandwidth.
The HMP8112A is ideally suited as the analog video inter-
face to VCR’s and camera’s in any multimedia or video sys-
tem. The high quality Y/C separation, user flexibility and
integrated phase locked loops are ideal for use with today’s
powerful compression processors. The HMP8112A operates
from a single 5V supply and is TTL/CMOS compatible.
Applications
• 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, HMP8130/1
Ordering Information
PART NUMBER
HMP8112ACN
HMP8112EVAL2
HMP8156EVAL2
TEMP.
RANGE (
o
C)
0 to 70
PACKAGE
80 Ld PQFP†
PKG.NO.
Q80.14x20
PCI Reference Design (Includes Part)
Frame Grabber Evaluation Board
(Includes Part)
†
PQFP is also known as QFP and MQFP
Table of Contents
Page
Functional Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . 2
Functional Operation Introduction . . . . . . . . . . . . . . . . . . 5
Internal Register Description Tables. . . . . . . . . . . . . . . . 15
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
AC and DC Electrical Specifications. . . . . . . . . . . . . . . . 25
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . 28
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . 39
Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
©
Harris Corporation 1998
File Number
4407.2
1
HARRIS [ HARRIS CORPORATION ]
