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參數(shù)資料
| 型號： | BA7745 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | VCR Hi-Fi audio signal REC / PB amplifier with flying-erase oscillator |
| 中文描述： | 錄像機(jī)高保真的音頻信號錄制/鉛與飛行放大器擦除振蕩器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 96K |
| 代理商： | BA7745 |
4
Video ICs
BA7745FS
Playback system (unless otherwise noted, Ta = 25°C, V
CC
= 5V, and f = 1.5MHz)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Iq
(PB)
G
VP1
G
VP2
G
VP
—
80
80
19.0
83
83
0
31.0
86
86
+ 2.0
mA
dB
dB
dB
– 2.0
CT
1
→
2
—
– 40
– 35
dB
CT
2
→
1
—
– 40
– 35
dB
f
P1
0
– 2.4
– 5
dB
f
P2
0
– 2.4
– 5
dB
17pin: “L” 11pin: 2.0V
Inflow current to pin 12 when no signal.
23pin, 20.5dB
μ
IN, 10pin OUT, 8pin: “H”
25pin, 20.5dB
μ
IN, 10pin OUT, 8pin: “L”
23pin, 25pin, 20.5dB
μ
IN,
10pin OUT
23pin 31.0dB
μ
, 25pin 0 IN,
8pin: “H”
→
“L”,
10pin OUT
23pin 0, 25pin 31.0dB
μ
IN,
8pin: “H”
→
“L”,
10pin OUT
23pin 20.5dB
μ
IN, 8pin: “H”
f = 2.2MHz / 1.0MHz,
10pin OUT
25pin 20.5dB
μ
IN, 8pin: “L”
f = 2.2MHz / 1.0MHz,
10pin OUT
11pin 2.0V
→
3.3V,
10pin OUT
–
G
VCA
+
G
VCA
V
OMP
—
– 40
+ 6
2.6
– 30
—
—
dB
dB
V
P-P
+ 4
2.0
V
NP1
—
0.4
1.0
μ
V
rms
V
NP2
—
0.4
1.0
μ
V
rms
V
HS2
V
HS1
V
ODC
V
17L
V
17H
R
SWP
V
V
9H
G
VP. EP
0.0
2.8
– 20
0.0
3.5
—
0.0
3.5
4.0
—
—
0
—
—
5
—
—
5.0
2.2
V
CC
+ 20
1.0
V
CC
10
2.2
V
CC
6.0
V
V
mV
V
V
V
V
dB
11pin 2.0V
→
0.8V,
10pin OUT
Pin 23 and 25 IN, pin 10 OUT 3rd-harmonic distortion, when -30dB.
Input conversion for pin 23: 0.01
μ
F + 10
at GND
Pin 8: “H”, pin 10 OUT.
Input conversion for pin 25: 0.01
μ
F + 10
at GND
Pin 8: “L”, pin 10 OUT.
Pin 8 DC when CH2 operating
Pin 8 DC when CH1 operating
23, 25pin 0 IN, 8pin: “H”
→
“L”,
10pin OUT
Pin 17 DC for PB mode
Pin 17 DC for REC mode
Pin 20 ON resistance
Pin 9 DC for SP mode
Pin 9 DC for EP mode
23, 25pin 20.5dB
μ
IN, 9pin: “H”, 10pin OUT
Playback mode
Supply current
Voltage gain CH1
Voltage gain CH2
Voltage gain differential
CH1 to CH2 crosstalk
CH2 to CH1 crosstalk
CH1 frequency characteristic
CH2 frequency characteristic
Gain adjustment headroom
Gain adjustment headroom
Maximum output voltage
CH1 input conversion noise
CH2 input conversion noise
Head switch voltage
Head switch voltage
Output DC offset
PB holding voltage
REC holding voltage
Head switch-on resistance
SP holding voltage
EP holding voltage
Gain emphasis EP
Design reference values
Flying erase system (unless otherwise noted, Ta = 25°C, V
CC
= 11.0V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
5pin: “H”
Iq
(FE)
—
12.0
—
mA
V
2
—
5.5
—
V
2pin DC
V
3
—
5.5
—
V
3pin DC
V
6
—
1.0
—
V
6pin DC
V
32
—
4.3
—
V
32pin DC
f
32
8
—
13
MHz
32pin OUT
υ
32
—
2.8
—
V
P-P
32pin OUT
V
5H
4.0
—
V
CC
V
0
—
0.5
V
V
5L
5pin DC, When FE ON
5pin DC, When FE OFF
Flying erase mode
Supply current
Pin 2 voltage
Pin 3 voltage
Pin 6 voltage
Pin 32 voltage
Oscillator frequency range
Output amplitude range
FE ON holding voltage
FE OFF holding voltage
The values given above are design values, they are not ratings and are not guaranteed.
Pin 31 inflow current
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PDF描述 |
|---|---|
| BA7746 | VCR Hi-Fi audio signal REC / PB amplifier |
| BA7755 | High-voltage audio head selection switch |
| BA7757 | Switchless REC / PB amplifier for standard audio signal processing |
| BA7765AS | NORMAL AUDIO SIGNAL PROCESSINGS |
| BA7766AS | NORMAL AUDIO SIGNAL PROCESSINGS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7745FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR Hi-Fi audio signal REC / PB amplifier with flying-erase oscillator |
| BA7746 | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR Hi-Fi audio signal REC / PB amplifier |
| BA7746FS | 制造商:Panasonic Industrial Company 功能描述:IC |
| BA7746S | 制造商:ROHM 制造商全稱:Rohm 功能描述:VCR Hi-Fi audio signal REC / PB amplifier |
| BA7746S/FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Video LSIs |
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