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參數(shù)資料
| 型號(hào)： | BH7775K |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | VCR audio signal processing system |
| 中文描述： | 錄像機(jī)音頻信號(hào)處理系統(tǒng) |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 226K |
| 代理商： | BH7775K |
5
Video ICs
BH7775K
I / O circuit; EF: emitter follower, P-P: push pull, B: base, and C: collector.
All numerical values are standardized values.
Pin name
Function
Pin voltage
Normal line amplifier feedback.
Normal line amplifier ALC time constant setting
(attack and recovery time).
Normal line amplifier playback input.
Normal PB amplifier output.
Normal PB amplifier equalizer switch.
Normal PB amplifier feedback.
Normal audio GND.
Normal audio playback input.
Head resonance equalizer switch terminal.
Normal REC amplifier output.
Recording equalizer setting resistor terminal.
Normal REC amplifier feedback terminal.
ALC time constant setting for mixer amplifier
(attack and recovery time).
Mixer amplifier output for RF converter.
Line output
V
CC
regulator.
V
CC
regulator error output.
Output switch, regulator GND.
V
EE
regulator error output.
V
EE
regulator
LINE 1 input (L and R).
LINE 2 input (L and R).
V
CC
/ 2 reference voltage. With power on detect
and precharge function.
I / O circuit
Pin No.
39
NA FB
0.0V
800
41
NA PB IN
0.0V
105.2k
42
NA PB OUT
0.0V
EF (P-P) ~ 50
43
PB EQ
0.0V
OPEN / 25
44
NA PB NFB
0.0V
B (NPN)
45
GNN
0.0V
—
47
HEAD EQ
0.0V
300k
/ 29
48
NA REC OUT
0.0V
EF: (P-P)
49
REC EQ
0.0V
1k
50
NA REC FB
0.0V
B (NPN)
52
MIX OUT
0.0V
EF (NPN)
54, 53
LINE OUT L, R
0.0V
330
55
V
CC
5.0V
—
56
ERP
5.0V
C (NPN)
57
GND
0.0V
—
58
ERM
– 5.0V
– 5.0V
C (PNP)
59
V
EE
—
61, 60
LINE1 IN L, R
0.0V
90.2k
63, 61
LINE2 IN L, R
0.0V
90.2k
64
VREFP
2.5V
10k
40
NA ALC
0.0V
EF (NPN) ~ 500
46
NA HEAD IN
0.0V
REC: B (NPN)
REC: EF (P-P)
51
MIX ALC
– 5.0V
EF (NPN) ~ 500
Pin function - 2 / 2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BH7777AK | 制造商:Panasonic Industrial Company 功能描述:IC |
| BH7778AK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Processor for VCR |
| BH7779K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Processor for VCR |
| BH7800K | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single chip Hi-Fi audio signal processor |
| BH7801BK | 制造商:ROHM 制造商全稱:Rohm 功能描述:Single chip Hi-Fi audio signal processor |
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