參數(shù)資料
型號(hào)： BA7797
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
文件頁數(shù)： 4/8頁
文件大小： 108K
代理商： BA7797
4
Video ICs
BA7797F
Electrical characteristics (unless otherwise noted, Ta = 25°C, V
CC
= 10V, and f = 1kHz)
Parameter
Symbol
I
qEE
I
qPB
I
qREC
Quiescent current REC
Line amplifier
Voltage gain (PB input)
Voltage gain (LINE1, LINE2, TU inputs)
Distortion
Maximum output level
Output residual noise
ALC level
ALC distortion
Mute attenuation ratio
Recording amplifier
Voltage gain
Distortion
Maximum output level
Openloop gain
Playback preamplifier
Openloop gain
Input conversion noise
Voltage gain (stand alone)
Head switch
PB head switch impedance
REC head switch impedance
REC head switch DC withstanding voltage
REC head switch AC withstanding voltage
Min.
6.4
6.4
5.2
Typ.
8.5
8.5
6.9
Max.
11.3
11.3
9.2
Unit
mA
mA
mA
Conditions
G
VCLP
G
VCLT
THD
LT
V
OMLT
V
NOLT
V
OA
THD
A
MT
27.0
19.0
—
5.9
—
– 9.0
—
—
28.0
20.0
0.1
8.4
– 81.5
– 8.0
0.1
– 82.0
29.0
21.0
0.3
—
– 75
– 7.0
0.5
– 72
dB
dB
%
dBV
dBV
dBV
%
dB
G
VCR
THD
R
V
OMR
G
VOR
19.0
—
5.7
60
20.0
0.13
8.2
71
21.0
0.4
—
—
dB
%
dBV
dB
G
VOP
V
NINP
G
VCP
61
—
35.0
68
—
dB
dBV
dB
– 122.5 – 114
36.0
37.0
R
PH
R
RH
BV
RHDC
BV
RHAC
—
—
—
80
11
17
0
100
20
25
10
—
μ
A
V
P-P
E
2
=
±
55V
f = 70kHz, V
2
%
±
1.5V
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
V
O
= – 8dBV
V
O
= – 8dBV
V
O
= – 8dBV, R
L
= 4.7k
THD = 1%, R
L
= 4.7k
Rg = 4.7k
, DIN AUDIO
V
IN
= – 25dBV, 9pin: OPEN
V
O
= 0dBV, DIN AUDIO
LINE IN, TUNER IN
→
REC OUT
V
O
= – 8dBV
V
O
= – 8dBV, R
L
= 4.7k
THD = 1%, R
L
= 4.7k
V
IN
= – 25dBV, R
L
= 4.7k
Rg = 680
, DIN AUDIO
PB IN
→
PB OUT
Measured at BW = 400Hz to 30kHz.
Quiescent current EE
Quiescent current PB
No signal
No signal
No signal
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參數(shù)描述
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