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參數資料
| 型號： | LA3235W |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 1.5 V Record Preamplifier |
| 中文描述： | 1.5 V時記錄前置放大器 |
| 文件頁數： | 3/13頁 |
| 文件大?。?/td> | 352K |
| 代理商： | LA3235W |
Continued form preceding page.
No. 4530-3/13
LA3235W
Parameter
Symbol
Conditions
min
typ
max
Unit
[Microphone + Record]
Voltage gain (closed)
VG
MR
V
OMR
THD
MR
ALCV
MR
ALCB
MR
ALCI
MR
V
O
= –10 dBm, ALC OFF
THD = 3%
52
56.6
60
dB
Maximum output voltage
500
700
mV
Total harmonic distortion
Vi = –40 dBm
Vi = –40 dBm, Rg = 6.8 k
Vi = –40 dBm, Rg = 6.8 k
0.55
1.3
%
ALC voltage
300
400
500
mV
ALC balance
0
1.5
dB
ALC start input
–65.5
–62.5
–59.5
dBm
ALC width
ALCW
MR
Input level relative to the ALC start point such
that the output is +3 dB.
35
42
dB
Output noise voltage
V
NOMR
CT
MR
SVRR
MR1
Rg = 6.8 k
, BPF = 20 Hz to 20 kHz
Vi = –40 dBm
Rg = 6.8 k
, f
R
= 100 Hz, V
R
= –30 dBm
1.5
2.8
mV
Crosstalk (interchannel)
11
19
dB
10
16
dB
Ripple rejection ratio
SVRR
MR2
Rg = 6.8 k
, f
R
= 100 Hz, V
R
= –20 dBm
With ripple added to V
CC
2, TUNE = 100 Hz
50
58
dB
[Radio + Record]
Voltage gain
VG
RR
V
ORR
THD
RR
ALCV
RR
ALCB
RR
ALCI
RR
V
O
= –10 dBm, ALC OFF
THD = 3%
31.5
35.5
39.5
dB
Maximum output voltage
470
570
mV
Total harmonic distortion
Vi = –30 dBm
Vi = –30 dBm, Rg = 6.8 k
Vi = –30 dBm, Rg = 6.8 k
0.55
1.3
%
ALC voltage
300
410
500
mV
ALC balance
0
1.5
dB
ALC start input
–45.5
–42.5
–39.5
dBm
ALC width
ALCW
RR
Input level relative to the ALC
start point such that the output is +3 dB.
35
40
dB
Output noise voltage
V
NORR
CT
RR
SVRR
RR
Rg = 6.8 k
, BPF = 20 Hz to 20 kHz
Vi = –30 dBm
Rg = 6.8 k
, f
R
= 100 Hz, V
R
= –30 dBm
340
610
μV
Crosstalk (interchannel)
35
47
dB
Ripple rejection ratio
25
32
dB
[Microphone + Monitor]
Voltage gain (closed)
VG
MMON
V
OMMON
THD
MMON
ALCV
MMON
V
NOMMON
CT
MMON
SVRR
MMON
V
O
= –20 dBm, ALC OFF
THD = 3%
39.5
43.5
47.5
dB
Maximum output voltage
150
310
mV
Total harmonic distortion
Vi = –40 dBm
Vi = –40 dB, Rg = 6.8 k
Rg = 6.8 k
, BPF = 20 Hz to 20 kHz
Vi = –40 dBm
Rg = 6.8 k
, f
R
= 100 Hz, V
R
= –30 dBm
0.55
1.3
%
ALC voltage
60
90
135
mV
Output noise voltage
350
650
μV
Crosstalk (interchannel)
11
19
dB
21
27
dB
Ripple rejection ratio
SVRR
MMON
Rg = 6.8 k
, f
R
= 100 Hz, V
R
= –20 dBm
With ripple added to V
CC
2, TUNE = 100 Hz
60
70
dB
[Record Bias Power Supply]
Output voltage
V
RBR1
I
RBR
= –50 mA
0.92
1.0
1.08
V
Ripple rejection ratio
SVRR
RBR1
f
R
= 100 Hz, V
R
= –30 mA
I
RBR
= –50 mA, 2SB1295; using 6 ranks
V
CC
1 = 1.0 V, I
RBR
= 30 mA
45
53
dB
Output voltage
V
RBR2
0.89
0.93
V
Ripple rejection ratio
SVRR
RBR2
V
CC
1 = 1.0 V, f
R
= 100 Hz, V
R
= –30 dBm
I
RBR
= 30 mA, 2SB1295; using 6 ranks
33
40
dB
[Microphone Power Supply]
Output voltage
V
MR
I
MR
= 3 mA
1.55
1.65
1.75
V
Ripple rejection ratio
SVRR
MR
f
R
= 100 Hz, V
R
= –20 dBm
I
MR
= 3 mA, with ripple added to V
CC
2
55
70
dB
[Switching Control]: Record mode
Forward: CONT A and C pins: source
I
FA
, I
FC
V
FB
V
FD
I
RB
, I
RD
V
RA
V
RC
V
E
Measured with R
L
= 10 k
I
IN
= 100 μA
I
IN
= 500 μA
Measured with R
L
= 10 k
I
IN
= 100 μA
I
IN
= 500 μA
I
IN
= 100 μA
20
35
μA
Forward: CONT B pin sink
64
150
mV
Forward: CONT D pin sink
110
230
mV
Reverse: CONT B and D pins source
20
35
μA
Reverse: CONT A pin sink
64
150
mV
Reverse: CONT C pin sink
110
230
mV
CONT E pin sink
30
70
mV
Continued on next page.
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