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參數資料
| 型號： | TDC1044AN9C |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | Monolithic Video A/D Converter 4-Bit, 25 Msps |
| 中文描述： | 1-CH 4-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 79K |
| 代理商： | TDC1044AN9C |
www.fairchildsemi.com
Features
4-bit resolution
1/4 LSB non-linearity
Sample-and-hold circuit not required
25 Msps conversion rate
Selectable output format
16-lead DIP and 20-lead PLCC packages
Applications
Digital communications
Video special effects
Radar data conversion
Medical imaging
Description
The TDC1044A is a 25 Msps (Megasample per second) full-
parallel analog-to-digital converter, capable of converting an
analog signal with full-power frequency components up to
12.5 MHz into 4-bit digital words. Use of a sample-and-hold
circuit is not necessary for operation of the TDC1044A. All
digital inputs and outputs are TTL compatible.
The TDC1044A consists of 15 latching comparators, encod-
ing logic, and an output register. A single convert signal
controls the conversion operation. Output formats are
true/inverted binary or true/inverted offset two’s complement
codes.
T DC1044A
Monolithic Video A/D Converter
4-Bit, 25 Msps
Block Diagram
R
1
R
M
R
T
V
IN
CONV
NLINV
NMINV
R
B
R
R
R
R
R
REFERENCE
RESISTOR
CHAIN
DIFFERENTIAL
COMPARATORS
(15)
15 TO 4
DECODER
LATCH
1
2
14
15
8
4
65-1044A-01
D
1
–D
4
R
R/2
Rev. 1.1.2
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