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參數(shù)資料
| 型號(hào)： | LA3235W |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 CHANNEL, AUDIO PREAMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, SQFP-48 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 175K |
| 代理商： | LA3235W |
LA3235W
No.4530-3/13
Continued form preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Record Amplifier
Voltage gain (closed)
VGREC
VO = -10dBm
22
dB
Maximum output voltage
VOREC
THD = 1%
670
mV
Total harmonic distortion
THDREC
VO = 300mV
0.08
%
Output noise voltage
VNOREC
BPF = 20Hz to 20kHz
46
μV
Crosstalk (interchannel)
CTREC
VO = -10dBm
55
dB
Ripple rejection ratio
SVRRREC
fR = 100Hz, VR = -30dBm
55
dB
Microphone + Record
Voltage gain (closed)
VGMR
VO = -10dBm, ALC OFF
52
56.6
60
dB
Maximum output voltage
VOMR
THD = 3%
500
700
mV
Total harmonic distortion
THDMR
Vi = -40dBm
0.55
1.3
%
ALC voltage
ALCVMR
Vi = -40dBm, Rg = 6.8k
Ω
300
400
500
mV
ALC balance
ALCBMR
Vi = -40dBm, Rg = 6.8k
Ω
0
1.5
dB
ALC start input
ALCIMR
-65.5
-62.5
-59.5
dBm
ALC width
ALCWMR
Input level relative to the ALC start point such that
the output is +3 dB.
35
42
dB
Output noise voltage
VNOMR
Rg = 6.8k
Ω, BPF = 20Hz to 20kHz
1.5
2.8
mV
Crosstalk (interchannel)
CTMR
Vi = -40dBm
11
19
dB
SVRRMR1
Rg = 6.8k
Ω, fR = 100Hz, VR = -30dBm
10
16
dB
Ripple rejection ratio
SVRRMR2
Rg = 6.8k
Ω, fR = 100Hz, VR = -20dBm
With ripple added to VCC2, TUNE = 100Hz
50
58
dB
Radio + Record
Voltage gain (closed)
VGRR
VO = -10dBm, ALC OFF
31.5
35.5
39.5
dB
Maximum output voltage
VORR
THD = 3%
470
570
mV
Total harmonic distortion
THDRR
Vi = -30dBm
0.55
1.3
%
ALC voltage
ALCVRR
Vi = -30dBm, Rg = 6.8k
Ω
300
410
500
mV
ALC balance
ALCBRR
Vi = -30dBm, Rg = 6.8k
Ω
0
1.5
dB
ALC start input
ALCIRR
-45.5
-42.5
-39.5
dBm
ALC width
ALCWRR
Input level relative to the ALC start point such that
the output is +3 dB.
35
40
dB
Output noise voltage
VNORR
Rg = 6.8k
Ω, BPF = 20Hz to 20kHz
340
610
μV
Crosstalk (interchannel)
CTRR
Vi = -30dBm
35
47
dB
Ripple rejection ratio
SVRRRR
Rg = 6.8k
Ω, fR = 100Hz, VR = -30dBm
25
32
dB
Microphone + Monitor
Voltage gain (closed)
VGMMON
VO = -20dBm, ALC OFF
39.5
43.5
47.5
dB
Maximum output voltage
VOMMON
THD = 3%
150
310
mV
Total harmonic distortion
THDMMON
Vi = -40dBm
0.55
1.3
%
ALC voltage
ALCVMMON
Vi = -40dBm, Rg = 6.8k
Ω
60
90
135
mV
Output noise voltage
VNOMMON
Rg = 6.8k
Ω, BPF = 20Hz to 20kHz
350
650
μV
Crosstalk (interchannel)
CTMMON
Vi = -40dBm
11
19
dB
SVRRMMON
Rg = 6.8k
Ω, fR = 100Hz, VR = -30dBm
21
27
dB
Ripple rejection ratio
SVRRMMON
Rg = 6.8k
Ω, fR = 100Hz, VR = -20dBm
With ripple added to VCC2, TUNE = 100Hz
60
70
dB
Record Bias Power Supply
Output voltage
VRBR1
IRBR = 50mA
0.92
1.0
1.08
V
Ripple rejection ratio
SVRRRBR1
fR = 100Hz, VR = -30dBm, IRBR = 50mA,
2SB1295 ; using 6 ranks
45
53
dB
Output voltage
VRBR2
VCC1 = 1.0V, IRBR = 30mA
0.89
0.93
V
Ripple rejection ratio
SVRRRBR2
VCC1 = 1.0V, fR = 100Hz, VR = -30dBm,
IRBR = 30mA, 2SB1295 ; using 6 ranks
33
40
dB
Microphone Power Supply
Output voltage
VMR
IMR = 3mA
1.55
1.65
1.75
V
Ripple rejection ratio
SVRRMR
fR = 100Hz, VR = -20dBm, IMR = 3mA,
with ripple added to VCC2
55
70
dB
Continued on next page.
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