參數(shù)資料
型號(hào)： LA1845NM
廠商： Sanyo Electric Co.,Ltd.
英文描述： Single-Chip Home Stereo IC
中文描述： 單芯片家用音響集成電路
文件頁數(shù)： 2/10頁
文件大?。?/td> 190K
代理商： LA1845NM
Specifications
Maximum Ratings
at Ta = 25°C
Operating Conditions
at Ta = 25°C
Operating Characteristics
at Ta = 25°C, V
CC
= 8 V, in the specified test circuit.
No. 5888-2/10
LA1845N, 1845NM
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
Pd max
9
V
Ta
≤
45°C
Ta = 80°C (DIP)
400
mW
Allowable power dissipation
Pd max
400
mW
Pd max
Ta = 80°C (MFP)
260
mw
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
8
V
Operating supply voltage range
Ta = 80°C
4.3 to 8.5
V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[FM Mono Characteristics] fc = 10.7 MHz, Vi = 100 dBμ, fm = 1 kHz, Mod = 75 kHz
Current drain
I
CCO-FM
V
OFM
THD
FM
S/N
FM
AMR
With no input signal
20
30
40
mA
Demodulator output
100 dBμ, 100% modulation, fm = 1 kHz
230
360
460
mVrms
Total harmonic distortion
100 dBμ, 100% modulation, fm = 1 kHz
0.35
1.5
%
Signal-to-noise ratio
100 dBμ, 100% modulation, fm = 1 kHz
73
80
dB
AM rejection ratio
100 dBμ, AM 30% modulation, fm = 1 kHz
47
65
dB
3 dB sensitivity
100 dBμ, 100% modulation, fm = 1 kHz, -3 dB input
32
40
dBμ
SD sensitivity
0% modulation
38
47
56
dBμ
IF counter buffer output
V
IFBuff-FM
Mute-Att
100 dBμ, the pin 13 output
80
120
160
mVrms
Mute attenuation
100 dBμ, 100% modulation, fm = 1 kHz
75
85
dB
[FM Stereo Characteristics] fc = 10.7 MHz, Vi = 100 dBμ, fm = 1 kHz, L + R = 90%, Pilot = 10%
Separation
Sep
L
ST
ON
THD-main
Left channel modulated. The pin 16 output/the pin 17 output
30
42
dB
Stereo on level
The pilot modulation such that V7 falls under 0.7 V
1.5
3.5
5.5
%
Total harmonic distortion
Left + right modulation. The pin 16 output.
0.45
1.5
%
fs = 113 kHz, Vs = 90%, pilot = 10%
The left - right modulation, demodulated output
Adjacent channel rejection ratio 1
Brej-3rd
36
dB
fs = 189 kHz, Vs = 90%, pilot = 10%
The left - right modulation, demodulated output
Adjacent channel rejection ratio 2
Brej-5th
41
dB
Carrier leak
L + R = 90%, pilot = 10% reference, pilot = 10% output
38
44
dB
[AM Characteristics] fc = 1000 kHz, Vi = 80 dBμ, fm = 1 kHz, Mod = 30%
Current drain
I
CCO-AM
V
OAM1
V
OAM2
S/N
AM1
S/N
AM2
THD
AM1
THD
AM2
With no input signal
13
27
39
mA
Detector output 1
23 dBμ, 30% modulation, fm = 1 kHz
40
80
160
mVrms
Detector output 2
80 dBμ, 30% modulation, fm = 1 kHz
90
160
230
mVrms
Signal-to-noise ratio 1
23 dBμ, 30% modulation, fm = 1 kHz
17
23
dB
Signal-to-noise ratio 2
80 dBμ, 30% modulation, fm = 1 kHz
46
52
dB
Total harmonic distortion 1
80 dBμ, 30% modulation, fm = 1 kHz
0.4
1.1
%
Total harmonic distortion 2
107 dBμ, 30% modulation, fm = 1 kHz
0.5
1.3
%
SD sensitivity
0% modulation
11
20
29
dBμ
Local oscillator buffer output
V
OSC-AM
V
IFBuff-AM
With no input signal
100
140
200
mVrms
IF counter buffer output
23 dBμ
140
285
400
mVrms
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