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参数资料
| 型号： | LA1837M |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 调谐器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PDSO30 |
| 封装： | 0.375 INCH, MFP-30 |
| 文件页数： | 2/9页 |
| 文件大小： | 645K |
| 代理商： | LA1837M |
LA1837M
No.8271-2/9
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
9
V
Operating supply voltage range
VCC op
7.0 to 11.0
V
Electrical Characteristics at Ta = 25
°C VCC = 9.0V, in the specified circuit.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
[FM Mono Characteristics] fc = 10.7MHz, fm = 1kHz, with the coil adjusted so that VAFC - VREG = 0V.
Current drain
ICCO-FM
No input
18
31
44
mA
Demodulator output
VOFM
100dB, 100% mod, pin 16 output
730
1100
1460
mVrms
Channel balance
C.B-mono
100dB, 100% mod, pin 16 output / pin 17 output
-1.5
0
+1.5
dB
THDFM1
100dB, 100% mod, pin 16 output
0.3
1.3
%
Total harmonic
distortion (mono)
THDFM2
100dB, 200% mod, pin 16 output
1.0
5.0
%
Signal-to-noise ratio
S/NFM
100dB, 100% mod, pin 16 output
72
80
dB
AM rejection ratio
AMR
100dB, AM 30% mod, pin 16 output
45
65
dB
Input limiting voltage
-3dBL.S
Referenced to 100dB, 100% mod, the input for output
is -3dB down.
26
32
38
dB
LED on sensitivity
SDON-FM
51
60
69
dB
LED on bandwidth
SDBW
100dB
85
120
170
kHz
IF counter buffer output
VIFBUFF-FM
100dB, pin 13 output
80
120
160
mVrms
VSM FM1
0dB, pin 11 output
0
0.1
0.5
V
S-meter output
VSM FM2
100dB, pin 11 output
3.6
4.3
5.0
V
Muting attenuation
Mute Alt
100dB, 100% mod, the pin 16 output
75
85
dB
[FM Stereo Characteristics] fc = 10.7MHz, 100dB
, fm = 1kHz, L+R = 90%, pilot = 10%
Separation: L
SepL
Lmod. pin 16 output / pin 17 output
30
45
dB
Separation: R
SepR
Rmod. pin 17 output / pin 16 output
30
45
dB
Stereo on level
STON
The pilot mod such that V7 < 0.7V
1.3
2.7
5.0
%
Stereo off level
STOFF
The pilot mod such that V7 > 4.5V
1.5
%
Total harmonic
distortion (main)
THD main
L+R mod. Pin 16 output
0.3
1.3
%
Brej-3rd
fs = 113kHz, Vs = 90%, Pilot = 10%
Pin 16 output, versus L-R mod. 1kHz demodulator output
40
dB
Adjacent channel
interference rejection
ratio
Brej-5th
fs = 189kHz, Vs = 90%, Pilot = 10%
Pin 16 output, versus L-R mod. 1kHz demodulator output
40
dB
[AM Characteristics]
Current drain
ICCO-AM
No input
15
25
35
mA
VOAM1
23dB, 30% mod, pin 16 output
100
180
360
mVrms
Output detector
VOAM2
80dB, 30% mod, pin 16 output
200
320
500
mVrms
S/N AM1
23dB, 30% mod, pin 16 output
18
22
dB
Signal-to-noise ratio
S/N AM 2
80dB, 30% mod, pin 16 output
49
55
dB
THD AM 1
80dB, 30% mod, pin 16 output
0.4
1.2
%
Total harmonic
distortion
THD AM 2
80dB, 80% mod, pin 16 output
1.0
4.0
%
LED-ON sensitivity
SDOn-AM
17
27
37
dB
Oscillator buffer output
VOSC-AM
No input, pin 30 output
110
160
220
mVrms
IF counter buffer output
VIFBuff-AM
80dB, non-mod, pin 13 output
160
220
300
mVrms
ST IF output
VSTIF-AM
80dB, non-mod, pin 7 output
16
34
48
mVrms
S-meter output
VSM-AM
0dB, non-mod
0
0.2
V
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