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參數資料
| 型號： | MC44251FU |
| 廠商： | MOTOROLA INC |
| 元件分類： | ADC |
| 英文描述： | Triple 8-Bit Video ADC Three-State Outputs |
| 中文描述： | TRIPLE 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 273K |
| 代理商： | MC44251FU |
MC44251
MOTOROLA
1
Advance Information
CMOS
The MC44251 contains three independent parallel analog–to–digital flash
converters (ADC). Each ADC consists of 256 latching comparators and an
encoder. Video may be ac or dc coupled. With ac coupling, input clamping
provides for internal dc restoration. The MC44251 also contains a dithering
generator for video processing performance enhancements.
The MC44251 is especially suitable as a front–end converter in TV–picture
digital processing (picture–in–picture, frame storage, etc.). The high speed
conversion rate of the ADC is suitable for video bandwidth of well over 6 MHz.
18 MHz Maximum Sampling Rate
Three–State Output Buffers
Output Latching Minimizes Skew
Input Clamps Suitable for RGB and YUV Applications
Built–In Dither Generator with Subsequent Digital Correction
Single 5–Volt Power Supply
Operating Temperature Range: – 40 to + 85
°
C
VTN and HZ Input Threshold Hysteresis Built–In
CLAMP
RTOP
RMID
RBOT
ANALOG INPUT
HZ
VTN
MODE
CS
Ibias
8
8
Σ
8
DATA
OUTPUTS
VDD(R)
DITHERING
GENERATOR
LATCH
SIMPLIFIED BLOCK DIAGRAM OF ONE OF THE ADCs
CLOCK
E
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Order this document
by MC44251/D
SEMICONDUCTOR TECHNICAL DATA
FN SUFFIX
44–LEAD PLCC
CASE 777
ORDERING INFORMATION
MC44251FN
MC44251FU
PLCC
QFP
441
44
1
FU SUFFIX
44–LEAD QFP
CASE 824A
NOTE:
The FN package is not
recommended for new designs.
It is scheduled for phase out
in late 1996.
REV 4
7/96
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| MC4430 | 制造商:SHENZHENFREESCALE 制造商全稱:ShenZhen FreesCale Electronics. Co., Ltd 功能描述:N-Channel 30-V (D-S) MOSFET Fast switching speed |
| MC44302ADW | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:ADVANCED MULTI-STANDARD VIDEO/SOUND IF |
| MC44302AP | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:ADVANCED MULTI-STANDARD VIDEO/SOUND IF |
| MC4433 | 制造商:SHENZHENFREESCALE 制造商全稱:ShenZhen FreesCale Electronics. Co., Ltd 功能描述:P-Channel 30-V (D-S) MOSFET Fast switching speed |
| MC4435 | 制造商:SHENZHENFREESCALE 制造商全稱:ShenZhen FreesCale Electronics. Co., Ltd 功能描述:P-Channel 30-V (D-S) MOSFET Fast switching speed |
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