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參數(shù)資料
| 型號(hào)： | NTE821 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit TV Chroma Demodulator |
| 中文描述： | 集成電路電視色度解調(diào)器 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 23K |
| 代理商： | NTE821 |
NTE821
Integrated Circuit
TV Chroma Demodulator
Description:
Specifically designed to match advances in color picture tube phosphors, the NTE821 is a monolithic
silicon integrated circuit in a 14–Lead DIP type package and consists of three output amplifiers, a
new resistor matrix, two double–balanced chroma demodulators, and a very stable bias circuit. When
used with the NTE714 subcarrier regeneration system and the NTE715 chroma amplifier, this device
completes the typical three–block chroma system. Alternatively, the NTE821 chroma demodulator
can be used with the NTE738 chroma processor to form a complete two–block chroma system.
The output amplifiers are specifically designed to meet the low impedance, short–circuit protected
driving requirements of high–level color output amplifiers. Internal ripple filter capacitors greatly re-
duce the high–frequency components of demodulation and thereby extend the output voltage swing
capability of the output stages and at the same time eliminates the need for external output filtering
components.
Features:
Output Short–Circuit Protection
Excellent Subcarrier Rejection
600mV Maximum Offset Voltage
2mV/
°
C Typical Temperature Stability
Good Chroma Sensitivity
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Operating Ambient Temperature Range, T
opr
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Voltage and Current Ratings (T
A
= +25
°
C)
Current in mA
Input
Output
1
No Connection
–
2
No Connection
–
3
0 to +5.0
–
4
0 to +5.0
–
5
No Connection
–
6
0 to +12
–
7
0 to +12
–
–40
°
to +85
°
C
–65
°
to +150
°
C
See Table
Current in mA
Input
Note 2
1.0
–
1.0
–
1.0
1.0
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin #
Voltage Range in Volts
Pin #
8
9
10
11
12
13
14
Voltage Range in Volts
0 to +27
0 to +20
No Connection
0 to +20
No Connection
0 to +20
Reference
Output
1.0
Note 1
–
Note 1
–
Note 1
Note 2
–
–
–
–
–
–
–
Note 1. Maximum continuous current output is 20mA and is limited by package power dissipation.
Short circuit current is typically 50mA.
Note 2. Limited by package power dissipation.
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