參數(shù)資料
型號(hào)： BA7181
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(dòng)跟蹤接口
文件頁(yè)數(shù)： 3/8頁(yè)
文件大?。?/td> 95K
代理商： BA7181
3
Video ICs
BA7181FS
Note: dBc: dB below carrier (used to express relative level from carrier reference for convenience sake).
Design reference values.
Parameter
Symbol Min.
Typ. Max.
Unit
Conditions
Playback system
Output DC offset
Input conversion noise
AGC output level
AGC control sensitivity
AGC amp frequency
characteristic
PB switch ON resistance
PRE CH 2 threshold voltage
PRE CH 1 threshold voltage
ENVE residual voltage
ENVE output level
ENVE saturation voltage
PB mode holding voltage
EE mode holding voltage
REC mode
holding
voltage
Pin 14 output DC offset for pin 1: H / L
Rg = 10
, input conversion of pin 14 output noise
V
IN
= 0.3mV
P-P
, pin 18 output measurement
Pin 18 output difference for V
IN
= 0.15
~ 0.6mV
P-P
Pin 18 output level difference for
f = 8.0 / 1.0MHz, V
IN
= 0.3mV
P-P
Pin 7 impedance
Pin 1 DC voltage for channel 2 operation
Pin 1 DC voltage for channel 1 operation
Pin 13 output measurement with no signal
Pin 13 output measurement when pin 14
output = 400mV
P-P
Pin 13 output measurement for large signal
Pin 8 DC voltage for PB mode
Pin 8 DC voltage for REC MUTE mode
Pin 8 DC voltage for REC mode
V
ODC
V
NIN
V
AGC
—
—
250
0
150 mV
P-P
—
350 mV
P-P
Fig.1
Fig.1
Fig.1
0.25
300
μ
V
rms
V
AGC
—
0.3
2.0
dB
Fig.1
G
VAF
—
0.5
—
dB
Fig.1
R
ON7
V
TH1H
V
TH1L
V
ENV1
—
3.5
0
—
4
—
—
0.7
—
V
CC
1.2
1.0
V
V
V
Fig.1
Fig.1
Fig.1
Fig.1
V
ENV2
2.4
2.9
3.4
V
Fig.1
V
ENV3
V
TH10H
V
TH10M
V
TH10L
4.0
3.8
2.2
0
4.5
—
—
—
—
V
CC
2.8
1.2
V
V
V
V
Fig.1
Fig.1
Fig.1
Fig.1
Measurement
circuit
(Fig. 1 measurement circuit, pin 8: “H” )
(unless otherwise noted, Ta = 25°C, V
CC
= 5.0V, f = 4.0MHz and I
OAR
= 30mA
P-P
)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Recording system
Supply current
Recording AGC level
AGC control sensitivity
REC Amp frequency
characteristic
2nd harmonic distortion
3rd harmonic distortion
Cross modulation distortion
Maximum output level
Recording current load
characteristic
Mute attenuation ratio
AGC mode holding voltage
AGC mode holding voltage
Design reference values.
Iq
(R)
I
OAR
—
27
72
30
110
33
mA
P-P
mA
Fig.2
Fig.2
I
OAR
—
0.3
1.5
dB
Fig.2
I
OAF
—
– 1.5
—
dB
Fig.2
2HD
R
3HD
R
CMD
R
I
OMR
—
—
—
40
– 45
– 50
– 50
50
—
—
—
—
dBc
dBc
dBc
mA
P-P
Fig.2
Fig.2
Fig.2
Fig.2
I
ORL
—
– 0.35
—
dB
Fig.2
MU
R
V
TH15H
V
TH15L
—
2.7
0
– 45
—
—
– 38
V
CC
dBc
V
V
Fig.2
Fig.2
Fig.2
1.2
No signal
Pin 12 input = 125mV
P-P
, pin 7 output measurement
Pin 7 output level difference for pin 12
input = 62.5mV
P-P
and 250mV
P-P
Pin 7 output level difference for f = 8.0 / 1.0MHz,
pin 12 input = 125mV
P-P
Pin 12 input = 125mV
P-P
, 8MHz spurious
Pin 12 input = 125mV
P-P
, 12.0MHz spurious
4.0MHz
±
630kHz spurious
When pin 7 output 2nd harmonic distortion is – 30dB
Pin 7 output level difference for load L: 8.2 ~ 12
μ
H
Pin 7 output level difference for pin 8: M / H
Pin 15 DC voltage to maintain recording AGC operation
Pin 15 DC voltage to maintain recording AGC stopped
Conditions
Measurement
circuit
(Pin 8 in Fig. 2 measurement circuit “L” )
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BA7181FS 制造商:ROHM 制造商全稱:Rohm 功能描述:2-channel PRE / REC amplifier with auto-tracking interface
BA7182 制造商:ROHM 制造商全稱:Rohm 功能描述:2-channel PRE / REC amplifier with auto-tracking interface
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
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