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参数资料
| 型号： | LA1823M |
| 元件分类： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO24 |
| 封装： | 0.300 INCH, MFP-24 |
| 文件页数： | 2/4页 |
| 文件大小： | 134K |
| 代理商： | LA1823M |
LA1823, LA1823M
No.6854-2/12
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
4.5
V
Operation supply voltage range
VCC op
1.8 to 6.0
V
Operating Characteristics at Ta
= 25°C, VCC = 4.5V, in the specified test circuit
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent supply current
FM-mode quiescent current
ICC (FM)
10.0
15.0
20.0
mA
AM-mode quiescent current
ICC (AM)
6.5
9.2
14.5
mA
FM front-end characteristics at fc = 98MHz, VIN = 60dBV EMF, fm = 1kHz, 22.5kHz dev
Local oscillator voltage
VOSC
No. input, fosc = 108.7MHz,
the pin 20 output
100
mVrms
Input limiting voltage
3dB L.S.
Referenced to 22.5kHz dev, a 3dB down input
12
dB
V EMF
FM IF characteristics (monaural) at fc = 10.7MHz, VIN = 100dBV, fm = 1kHz, 75kHz dev
Demodulation output
VO
The pin 16 output
125
165
210
mVrms
Signal-to-noise ratio
S/N
The pin 16 output
63
72
dB
Total harmonic distortion
(monaural)
THD
The pin 16 output
0.5
1.5
%
Input limiting voltage
3dB L.S.
Referenced to 75kHz dev, a 3dB down input
31
38
45
dB
V
IF count buffer on level
IF buff on
No modulation
35
45
55
dB
V
IF count buffer output
VIF buff
No modulation, the pin 7 output
120
180
240
mVrms
FM IF characteristics (stereo) at fc = 10.7MHz, VIN = 100dBV, fm = 1kHz, 75kHz dev, L+R = 90%, PILOT = 10%
Separation
SEP
Left channel modulated, the pin 16 and pin 17
outputs
25
40
dB
Stereo on level
ST-ON
The pilot modulation such that the pin 8 voltage
becomes lower than 0.5V
2.4
3.5
7.2
%
Total harmonic distortion (stereo)
THD
Main modulation, the pin 16 output
0.5
1.7
%
AM characteristics at fc = 1000kHz, fm = 1kHz, mod = 30%
VO1
VIN = 23dBV, the pin 16 output
14
26
50
mVrms
Detector output
VO2
VIN = 80dBV, the pin 16 output
50
75
120
mVrms
S/N1
VIN = 23dBV, the pin 16 output
15
20
dB
Signal-to-noise ratio
S/N2
VIN = 80dBV, the pin 16 output
47
54
dB
Total harmonic distortion
THD
VIN = 80dBV, the pin 16 output
0.5
1.5
%
OSC buffer output
VOSC buff
No input, the pin 8 output
80
100
160
mVrms
IF count buffer on level
IF buff on
No modulation
15
25
32
dB
V
IF count buffer output
VIF buff
VIN = 80dBV, no modulation, the pin 7 output
110
180
220
mVrms
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