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參數(shù)資料
| 型號： | BH7272KV |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | PV 3C 3#16 SKT PLUG |
| 中文描述： | 雙通道錄像機前/承包數(shù)字錄像機放大器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 185K |
| 代理商： | BH7272KV |
1
Video ICs
Two-channel VCR PRE / REC
amplifier for Digital VCRs
BH7272KV
The BH7272KV is a head amplifier developed for use in digital video cassette recorders. Both PB and REC have
excellent frequency characteristics making this IC an ideal choice for digital recording and playback. The small
VQFP48 package facilitates compact design of portable equipment such as video cameras.
Applications
Digital video cassette recorders
Features
1) The playback amplifier is a differential amplifier with
an overall gain of 54dB (Typ.), and has low-noise
transistors as the first stage. The feedback circuit is
not included, so provide negative feedback for head
peak damping, and positive feedback to cancel the
input capacitance using external components.
2) The playback AGC amplifier has ± 10dB of control
range.
3) The recording current amplifier is a BLT current
amplifier. Use external components to construct the
head peak damping circuit.
4) Recording limit amplifier is included. Recording AGC
amplifier not included.
5) The signal system V
CC
is 4.9V, and the control sys-
tem V
CC
is 3.0V.
Absolute maximum ratings (Ta = 25°C)
Parameter
Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Applied voltage
Power dissipation
Operating temperature
Storage temperature
When mounted on a 70mm
×
70mm
×
1.6mm glass epoxy board.
Reduced by 9.0mW for each increase in Ta of 1
°
C over 25
°
.
V
CC
Pd
Topr
Tstg
7.0
– 20 ~ + 65
– 55 ~ + 125
V
mW
°
C
°
C
900
Symbol
Min.
Typ.
Max.
Unit
Conditions
Signal system
Control system
V
CC
5V
V
CC
3V
4.6
2.8
4.9
3.0
5.2
3.2
V
V
14, 19, 38, 47pin
16pin
s
Not designed for radiation resistance.
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相關(guān)代理商/技術(shù)參數(shù) |
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| BH7332FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Triple Video Amplifier |
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