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參數(shù)資料
| 型號： | BA7182 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 2-channel PRE / REC amplifier with auto-tracking interface |
| 中文描述： | 2通道前/承包放大器具有自動跟蹤接口 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 100K |
| 代理商： | BA7182 |
1
Video ICs
2-channel PRE / REC amplifier with
auto-tracking interface
BA7182AS
The BA7182AS is a PRE / REC amplifier developed for use in video cassette recorders. It has been designed for use
in two-head decks and features built-in FB damping, two preamplifiers, a chroma output amplifier, an FM output
amplifier (with AGC), an envelope detector, a constant-current BTL-drive REC amplifier (with AGC) and built-in chan-
nel and REC / PB switches on a single monolithic IC.
Applications
VCRs
Features
1) The playback amplifier has a total gain of 59dB
(Typ.), and has a low-noise preamplifier. Designed
for VHS-band operation with low external parts
count. The IC has 2 circuits for 2-head VCR applica-
tions.
2) Two playback output systems (throgh output and
AGC output). The AGC output level is 270mV
P-P
(Typ.) ; suitable for FM brightness signal output.
3) Auto-tracking interface for automated tracking
adjustment. An integrate and hold detector is used
to reduce the load on the microcontroller.
4) The recording amplifier uses constant-current BLT
drive that handles load variations (i.e. headimped-
ance) well, and gives stable recording characteris-
tics. A single circuit is provided for 2-head VCR use.
5) Built-in recording level AGC means adjustment of
FM recording current is not necessary.
6) Head switches for 2-channel PRE / REC system
provided.
7) Operates off a single 5V power supply, with low
power dissipation.
Absolute maximum ratings (Ta = 25°C)
Parameter
Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Symbol
Limits
Unit
7.0
1100
V
mW
Topr
°
C
Tstg
°
C
V
CC
Pd
– 20 ~ + 75
– 55 ~ + 125
Applied voltage
Power dissipation
Operating temperature
Storage temperature
Reduced by 11mW for each increase in Ta of 1
°
C over 25
°
C (free air).
Min.
Typ.
Max.
Unit
Conditions
V
CC
4.5
5.0
5.5
V
12pin
Playback / recording
s
Not designed for radiation resistance.
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| BA7184 | 4-channel PRE / REC amplifier with auto-tracking interface |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7182AS | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-channel PRE / REC amplifier with auto-tracking interface |
| BA7184 | 制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel PRE / REC amplifier with auto-tracking interface |
| BA7184S | 制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel PRE / REC amplifier with auto-tracking interface |
| BA7-2 INSERT | 制造商:RAACO 功能描述:BA7-2 INSERT BOXXSER 制造商:RAACO 功能描述:BA7-2 INSERT, BOXXSER 制造商:RAACO 功能描述:BA7-2 INSERT, BOXXSER ;ROHS COMPLIANT: NA |
| BA7207 | 制造商:ROHM 制造商全稱:Rohm 功能描述:SECAM chroma signal processor for VHS VCRs |
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