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| 型號： | BU2880 |
| 英文描述： | Capstan/Servo Circuit For VCR |
| 中文描述： | 絞盤/伺服電路錄像機(jī) |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 104K |
| 代理商： | BU2880 |
1
Video ICs
Digital servo controller for VCRs
BU2880 series
The BU2880 series are linear digital-servo controllers that allow construction of a VCR servo system using one IC.
The DRUM and CAPSTAN systems have digital filters, and the IC is compatible with VISS / VASS overwriting and
wide-aspect operation.
Applications
Video cassette recorders
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
7.0
500
V
Pd
mW
Topr
°
C
Tstg
°
C
V
DD
– 15 ~ + 70
– 55 ~ + 125
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Reduced by 5mW for each increase in Ta of 1
°
C over 25
°
C.
Features
1) All VCR servo functions on a single chip.
2) Digital filters in the DRUM and CAPSTAN speed and
phase systems.
3) Built-in CTL amplifier with serial gain setting.
4) VISS / VASS overwriting and INDEX detection func-
tions for wide-aspect operation.
5) DRUM f
H
compensation calculation function from
speed detect function.
6) 6.5H discrimination.
7) Compatible with 19
μ
m heads.
Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
V
V
DD
4.5
5.0
5.5
Power supply voltage
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