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參數(shù)資料
| 型號(hào)： | BA7795 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | VCR standard audio signal processor |
| 中文描述： | 錄像機(jī)標(biāo)準(zhǔn)音頻信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 163K |
| 代理商： | BA7795 |
7
Video ICs
BA7795LS / BA7795FS
(3) Playback operation
The signal applied to PB IN is amplified by playback
equalizer amplifier. At this time, the REC HEAD switch
is switched on by a control signal to REC / EE, and the
potential on one side of the head is fixed at GND . The
playback equalizer amplifier gain and equalizer charac-
teristics are set externally. The playback level is set by
the resistor divider between PB OUT and the playback
line input, The signal to the playback line input passes
though the input switch, is amplified by 20dB in the line
amplifier, and is output to the output buffer (the voltage
gain is different to that for the LINE input and TUNER
input).
It is possible to switch between the input block head
equalizer resonance point and playback equalizer char-
acteristic using the EQ CTRL control signal.
The line output can be stopped by setting muting mode
on using the MUTE CTRL signal. The ALC circuit and
recording amplifier are stopped in playback mode.
Signal flow for playback operation
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
24
+
+
+
+
+
REC + B
22
μ
33
μ
22
μ
10
μ
0.1
μ
47
μ
0.01
μ
39k
ALC
LINE
3.3
μ
330k
330k
12k
8.2k
4.7k
0.1
μ
4.7k
V
CC
E
REC
B
– 20dB
M
B
P
P
S
R
2.2M
4.7k
8.2k
15k
1.5k
10
μ
E
L
R
+ 28dB
0.1
μ
REC / EE CTRL
EQ CTRL
PB / TU / EE
CTRL
MUTE
CTRL
BIAS
OSC
LINE IN
TUNER IN
LINE OUT
BA7795LS
C [F]
Units: R [
]
The BA7795FS has a different pin layout to the BA7795LS.
Fig. 4 Signal flow for playback
+
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BA7797 | VCR standard audio signal processor |
| BA783S | Bandswitching Diodes |
| BA782S | Bandswitching Diodes(開(kāi)關(guān)二極管) |
| BA783 | ECONOLINE: REC5-S_DRW(Z)/H4,H6 - Safety standards and approval: EN 60950 certified, rated for 250VAV (LVD test report)- Applied for Ul 1950 Component Recognised Certification- 5W DIP Package- 4kVDC & 6kVDC Isolation- Regulated Output- Continuous Short Circiut Protection Auto-Restarting |
| BA782 | Bandswitching Diodes(開(kāi)關(guān)二極管) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7795FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR standard audio signal processor |
| BA7795LS | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR standard audio signal processor |
| BA7795LS/FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Video LSIs |
| BA7796 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| BA7796FS | 制造商:Panasonic Industrial Company 功能描述:IC |
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