LA1845N_09 Datasheet, PDF (2/9 Pages) Sanyo Semicon Device – For Home Stereo IC Single-Chip Tuner IC

Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
Operating supply voltage range
VCC
VCC op
LA1845N
Ta = 80°C
Conditions
Ratings
Unit
8
V
4.3 to 8.5
V
Electrical Characteristics at Ta = 25°C, VCC = 8V, in the specified test circuit.
Parameter
Symbol
Conditions
FM mono characteristics fc = 10.7MHz, Vi = 100dBμ, fm = 1kHz, Modulation = 75kHz
Current drain
Demodulator output
Total harmonic distortion
Signal-to-noise ratio
AM rejection ratio
ICCO-FM
VOFM
THDFM
S/NFM
AMR
With no input signal
100dBμ, 100% modulation, fm = 1kHz
100dBμ, 100% modulation, fm = 1kHz
100dBμ, 100% modulation, fm = 1kHz
100dBμ, AM 30% modulation, fm = 1kHz
3dB sensitivity
100dBμ, 100% modulation,
fm = 1kHz Output reference, -3dB input
SD sensitivity
0% modulation
IF counter buffer output
Mute attenuation
VIFBuff-FM
Mute-Att
100dBμ
100dBμ, 100% modulation, fm = 1kHz
FM stereo characteristics fc = 10.7MHz, Vi = 100dBμ, fm = 1kHz, L + R = 90%, pilot = 10%
Separation
Stereo on level
Total harmonic distortion
SepL
STON
THD-main
L + R = 90%, Pilot = 10%, fm = 1kHz
Pilot input
Pilot input
Adjacent channel rejection ratio
Brej-3rd
fs = 113kHz, Vs = 90%, Pilot = 10% :
The left - right modulation, demodulated output
Brej-5th
fs = 189kHz, Vs = 90%, Pilot = 10% :
The left - right modulation, demodulated output
Carrier leak
L + R = 90%, pilot = 10% reference,
pilot = 10% output
AM characteristics fc = 1000kHz, Vi = 80dBμ, fm = 1kHz, Modulation = 30%
Current drain
Detector output
Signal-to-noise ratio
Total harmonic distortion
SD sensitivity
ICCO-AM
VOAM1
VOAM2
S/NAM1
S/NAM2
THDAM1
THDAM2
With no input signal
23dBμ, 30% modulation, fm = 1kHz
80dBμ, 30% modulation, fm = 1kHz
23dBμ, 30% modulation, fm = 1kHz
80dBμ, 30% modulation, fm = 1kHz
80dBμ, 30% modulation, fm = 1kHz
107dBμ, 30% modulation, fm = 1kHz
0% modulation
Local oscillator buffer output
IF counter buffer output
VOSC-AM
VIFBuff-AM
With no input signal
23dBμ
min
20
230
73
47
38
200
30
1.5
38
13
40
90
17
46
11
100
140
Ratings
typ
30
360
0.35
80
65
32
47
275
76
42
3.5
0.45
36
41
44
27
80
160
23
52
0.4
0.5
20
140
285
Unit
max
40
mA
460 mVrms
1.5
%
dB
dB
40 dBμ
56 dBμ
400 mVrms
dB
dB
5.5
%
1.5
%
dB
dB
dB
39
mA
160 mVrms
230 mVrms
dB
dB
1.1
%
1.3
%
29 dBμ
200 mVrms
400 mVrms
No.7185-2/9