参数资料
型号: TMC2272AH5C
厂商: FAIRCHILD SEMICONDUCTOR CORP
元件分类: DSP Peripheral
英文描述: 12-BIT, DSP-VIDEO IMAGING, PPGA120
封装: PLASTIC, PGA-120
文件页数: 1/20页
文件大小: 170K
代理商: TMC2272AH5C
www.fairchildsemi.com
REV. 1.1.3 10/25/00
Features
50 MHz (20ns) pipelined throughput
3 Simultaneous 12-bit input and output channels
(64 Giga {236} colors)
Two's complement inputs and outputs
Overow headroom available in lower resolution
10-bit user-dened coefcients
TTL compatible input and output signals
Full precision internal calculation
Output rounding
On-board coefcient memory
Submicron CMOS process
Applications
Translation between component color standards (RGB,
YIQ, YUV, etc.)
Broadcast composite color encoding and decoding (all
standards)
Broadcast composite color standards conversion and
transcoding
Camera tube and monitor phosphor colorimetry
correction
White balancing and color-temperature conversion
Image capture, processing and storage
Color matching between systems, cameras and monitors
Three-dimensional perspective translation
Description
A 50-MHz, three-channel, 36 bit (three 12-bit components)
colorspace converter and color corrector, the TMC2272A
uses 9 parallel multipliers to process high-resolution imagery
in real time.
The TMC2272A also operates at any slower clock rate and
with any smaller data path width, allowing it to handle all
broadcast and consumer camera, frame-grabber, encoder/
decoder, recorder and monitor applications as well as most
electronic imaging applications.
A complete set of three 12-bit samples is processed on every
clock cycle, with a five-cycle pipeline latency. Full 23-bit
(for each of three components) internal precision is provided
with 10-bit user-defined coefficients. The coefficients may be
varied dynamically, with three new coefficients loaded every
clock cycle. (The full set of nine can be replaced in three clock
cycles.) Rounding to 12 bits per component is performed only
at the final output. This allows full accuracy with correct
rounding and overflow headroom for applications that require
less than 12 bits per component.
The TMC2272A is fabricated in a submicron CMOS process
and performance is guaranteed over the full operating tem-
perature range. It is available in a 120-pin Plastic Pin Grid
Array (PPGA) package, 120-pin Ceramic Pin Grid Array
(CPGA), 120-pin MQFP to PGA package, and 120-pin
Plastic Quad FlatPack (PQFP) in three speed grades.
Logic Symbol
A11-0
B11-0
C11-0
X11-0
Y11-0
Z11-0
KA11-0
KB11-0
KC11-0
CSEL1-0
CLK
TMC2272A
Colorspace Converter
Data
Input
Data
Output
Coefficient
Input
TMC2272A
Digital Colorspace Converter
36 Bit Color, 50 MHz
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