LA1837_09 Datasheet, PDF (2/9 Pages) Sanyo Semicon Device – For Home Stereo IC with Electronic Tuning Support Single-Chip IC

Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
Operating supply voltage range
VCC
VCC op
LA1837
Conditions
Ratings
Unit
9
V
7 to 11
V
Electrical Characteristics at Ta = 25°C, VCC = 9V, in the specified test circuit
Parameter
Symbol
Conditions
FM Mono characteristics fc = 10.7MHz, fm = 1kHz, with the coil adjusted so that VAFC - VREG = 0V
Current drain
ICCO-FM
With no input
Demodulation output
VOFM
100dBμ, 100% mod. The pin 16 output
Channel balance
C.B-mono
100dBμ, 100% mod.
The pin 16 output/pin 17 output
Total harmonic distortion (mono)
Signal-to-noise ratio
AM rejection ratio
THDFM(1)
THDFM(2)
S/NFM
AMR
100dBμ, 100% mod. The pin 16 output
100dBμ, 100% mod. The pin 16 output
100dBμ, 100% mod. The pin 16 output
100dBμ, 100% mod. The pin 16 output
Limiting input voltage
-3dBL.S.
100dBμ, 100% mod. Referenced to the output.
The input such that the output is down –3 dB.
LED sensitivity
LED bandwidth
IF count buffer output
S-meter output
Muting attenuation
SDOn-FM
SDBW
VIFBuff-FM
VSM-FM(1)
VSM-FM(2)
Mute-Att
100dBμ
100dBμ, The pin 13 output
0dBμ, The pin 11 output
100dBμ, The pin 11 output
100dBμ, 100% mod. The pin 16 output
FM stereo characteristics fc = 10.7MHz, 100dBμ, fm = 1kHz, L + R = 90%, pilot = 10%
Separation (left)
Separation (right)
Stereo on level
Stereo off level
Total harmonic distortion (main)
SepL
SepR
STON
STOFF
THD-main
L mod. The pin 16 output/pin 17 output
R mod. The pin 17 output/pin 16 output
The pilot modulation such that V7 is under 0.7V.
The pilot modulation such that V7 is over 4.5V.
L + R mod. The pin 16 output
Adjacent channel interference
rejection ratio
Brej-3rd
Brej-5th
AM characteristics fc = 1000kHz, fm = 1kHz
fs = 113kHz, VS = 90%, Pilot = 10%,
The pin 16 output vs. the L-R mod. 1kHz
demodulated output
fs = 189kHz, VS = 90%, Pilot = 10%,
The pin 16 output vs. the L-R mod. 1kHz
demodulated output
Current drain
Detector output
Signal-to-noise ratio
Total harmonic distortion (mono)
LED sensitivity
Local oscillator buffer output
IF counter buffer output
ST-IF output
S-merer output
ICCO-AM
VOAM(1)
VOAM(2)
S/NAM(1)
S/NAM(2)
THDAM(1)
THDAM(2)
SDOn-AM
VOSC-AM
VIFBuff-AM
VSTIF-AM
VSM-AM
With no input
23dBμ, 30% mod. The pin 16 output
80dBμ, 30% mod. The pin 16 output
23dBμ, 30% mod. The pin 16 output
80dBμ, 30% mod. The pin 16 output
80dBμ, 30% mod. The pin 16 output
80dBμ, 80% mod. The pin 16 output
With no input. The pin 30 output
80dBμ, no modulation. The pin 13 output
80dBμ, no modulation. The pin 7 output
0dBμ, no modulation.
min
18
730
-1.5
72
45
26
51
85
80
0
3.6
75
30
30
1.3
15
100
200
18
49
17
110
160
16
0
Ratings
typ
31
1100
0
0.3
1.0
80
65
32
60
120
120
0.1
4.3
85
45
45
2.7
1.5
0.3
40
40
25
180
320
22
55
0.4
1.0
27
160
220
34
0
Unit
max
44
1460
+1.5
mA
mVrms
dB
1.3
%
5
%
dB
dB
38 dBμ
69 dBμ
170 kHz
160 mVrms
0.5
V
5.0
V
dB
dB
dB
5
%
%
1.3
%
dB
dB
35
mA
360 mVrms
500 mVrms
dB
dB
1.2
%
4.0
%
37 dBμ
220 mVrms
300 mVrms
48 mVrms
0.2
V
No.5688-2/9