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參數(shù)資料
| 型號： | LA3401 |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PDIP22 |
| 封裝： | SDIP-22 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 467K |
| 代理商： | LA3401 |
LA3401
No.1868-2/17
Functions
VCO non-adjusting function.
Muting function.
PLL MPX stereo demodulator.
Drive pin for external muting.
Gain variable type post amplifier.
VCO stop function.
FM-AM changeover.
Separation adjust function.
Muting at the FM-AM changeover mode (changeover mute)
Muting at the VCC-ON mode.
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum Supply Voltage
VCC max
16.0
V
Lamp Driving Current
IL max
30.0
mA
Allowable Power Dissipation
Pd max
Ta
≤ 45°C
620
mW
Operating Temperature
Topr
20 to +70
°C
Storage Temperature
Tstg
40 to +125
°C
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended Supply Voltage
VCC
13.0
V
Recommended Input Signal Voltage
Vi
300 to 400
mV
Operating Voltage Range
VCC op
6.5 to 14.0
V
Electrical Characteristics at Ta = 25
°C, VCC = 13V, f = 1kHz, input 400mV, L+R = 90%, pilot = 10%
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent Current
ICCO
Quiescent
25
35
mA
Input Resistance
ri
FM, AM input
14
20
k
Ω
Ripple Rejection of Power Supply
34
dB
f = 100Hz
45
dB
f = 1kHz
40
55
dB
Channel Separation
Sep
f = 10kHz
50
dB
Mono
0.01
0.08
%
Stereo main
0.025
0.1
%
Stereo sub
0.02
0.1
%
Total Harmonic Distortion
THD
AM
0.01
0.08
%
Allowable Input Level
VIN max
THD = 1% (FM mono, AM)
800
mV
Mono, 300mV, Rg = 5.1k
Ω, LPF
91
dB
S/N
Mono, 400mV, Rg = 5.1k
Ω, LPF
80
94
dB
Mono, AM, Input 300mV
802
1162
1545
mV
Output Voltage (*1)
VO
Mono, AM, Input 400mV
1070
1550
2060
mV
Channel Balance
CB
Mono, AM
1
dB
Muting Attenuation
Attmute
External mute OFF
70
79
dB
AM
→ FM
65
72
dB
Crosstalk
CT
FM
→ AM
65
72
dB
Mute-ON Voltage
Vmton
Pin 15 voltage
3.5
VCC-3
V
Mute-OFF Voltage
Vmtoff
Pin 15 voltage
0.3
V
Pin 10 voltage, AM
→ FM
0.5
V
Pin 10 voltage, FM
→ AM
4.3
10
V
FM/AM Changeover Voltage
VFM-AM
VCC-2
V
VCO Stop Voltage
Pin 17 voltage
5.0
VCC-2
V
19kHz Carrier Leak
CL19
De-emphasis
33
dB
38kHz Carrier Leak
CL38
De-emphasis
46
dB
Continued on next page.
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