LA1837_09 Datasheet, PDF (7/9 Pages) Sanyo Semicon Device – For Home Stereo IC with Electronic Tuning Support Single-Chip IC

LA1837
Overall FM Characteristics
10
Out
0
--10
--20
--30
--40
--50
AM Out
--60
--70
VCC = 9V
--80 fc = 10.7MHz
Noise
--90 ^{fm = 1kHz, 75kHzdev}
0 10 20 30 40 50 60 70 80 90 100 110 120
Input -- dBμ
FM THD Band Characteristics
5.0 _{VIN = 100dBμ}
fm = 1kHz, 75kHzdev
4.0
3.0
2.0
1.0
0
10.60 10.62 10.64 10.66 10.68 10.70 10.72 10.74 10.76 10.78 10.80
Frequency fc -- MHz
Separation vs. Frequency Characteristics
50
45
Sep-R
Sep-L
40
35
30
25
20
15
10
5
0
0.01 ^{2 3 5 7} 0.1 ^{2 3 5 7} 1.0 ^{2 3 5 7} 10 ²
Frequency, freq -- kHz
Capture Range Characteristics
6
CR+
4
2
0
--2
--4
CR -
--6
10
20
30
40
Pilot -- mV
FM THD/VSM Characteristics
5 _{VCC = 9V}
fc = 10.7MHz
fm = 1kHz, 75kHzdev
VSM
4
3
2
1
THD
0
0 10 20 30 40 50 60 70 80 90 100 110 120
Input -- dBμ
Distortion vs. Frequency Characteristics
10
7
5
3
2
1.0
7
5
3
2
0.1
7
5
3
2
0.01
0.01 ^{2 3 5 7} 0.1 ^{2 3 5 7} 1.0 ^{2 3 5 7} 10 ^{2 3}
Frequency, freq -- kHz
Adjacent Channel Interference Rejection Ratio
0 _{IF = 10.7MHz, 100dBμ, 75kHzdev}
--10
VS = 90%
PILOT = 10%
Referenced to the L-R
--20 _{demodulated output.}
LA1836
--30
--40
--50
--60
LA1837
--70
--80
--90
70
90 110 130 150 170 190 210 230
Frequency, fs -- kHz
SD Sensitivity Adjustment Characteristics
90
12 30
80
70
60
AM FM
50
FM
40
30
AM
20
10
0
0
2
4
6
8
10
12
14
16
Rsdadj -- kΩ
No.5688-7/9