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参数资料
| 型号： | LA1835 |
| 元件分类： | 调谐器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PDIP30 |
| 封装： | SDIP-30 |
| 文件页数： | 7/14页 |
| 文件大小： | 468K |
| 代理商： | LA1835 |
Specifications
Maximum Ratings at Ta = 25°C
Operating Conditions at Ta = 25°C
Operating Characteristics
at Ta = 25°C, VCC = 7.0 V, in the specified test circuit using the IC59-3004 socket (Yamaichi Electric Co., Ltd.)
No. 4159-2/14
LA1835
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
7.0
V
Operating supply voltage
VCC op
6.5 to 8.5
V
Parameter
Symbol
Conditions
min
typ
max
Unit
[FM Characteristics (mono): fc = 10.7 MHz, fm = 1 kHz]
Quiescent current
ICCO-FM
No input
23
37
46
mA
Demodulator output
VO-FM
100 dB, 100% modulation, the pin 16 output
665
1000
1330
mVrms
Channel balance (monaural)
C. B-momo 100 dB, 100% modulation, pin 16 output/pin 17 output
–1.5
0
+1.5
dB
Total harmonic distortion
THD-FM
100 dB, 100% modulation, the pin 16 output
0.3
1.5
%
Signal-to-noise ratio
S/N-FM
100 dB, 100% modulation, the pin 16 output
67
74
dB
AM suppression ratio
AMR
100 dB, 30% AM modulation, the pin 16 output
35
50
dB
Input limiting voltage
–3dBL.S
100 dB, referenced to 100%, with the input down 3 dB
27
35
dB
SD indicator sensitivity
SD-on-FM
47
57
67
dB
SD indicator bandwidth
SD-BW
100 dB
120
190
280
kHz
IF counter buffer output
VIF Buff-FM 100 dB, the pin 11 output
80
120
160
mVrms
VSM-FM (1) 0 dB, the pin 12 output
0
0.3
1.0
V
S-meter output
VSM-FM (2) 60 dB, the pin 12 output
0.7
1.5
2.5
V
VSM-FM (3) 100 dB, the pin 12 output
2.5
4.0
5.0
V
Muting attenuation
Mute-Att
100 dB, 100% modulation, the pin 16 output
80
95
dB
[FM Characteristics (stereo): fc = 10.7 MHz, fm = 1 kHz, L + R = 90%, pilot = 10%, VIN = 100 dB]
Separation-left
Sep-L
Left channel modulated; pin 17 output/pin 16 output
30
45
dB
Separation-right
Sep-R
Right channel modulated; pin 16 output/pin 17 output
30
45
dB
Stereo on level
ST-on
The pilot modulation such that V7 < 0.7 V
1.8
3.6
6.0
%
Stereo off level
ST-off
The pilot modulation such that V7 > 4.5 V
2.5
%
Total harmonic distortion (main)
THD-main
The pin 16 output
0.3
1.5
%
Channel balance (main)
C. B-main
Pin 16 output/pin 17 output
–1.5
0
+1.5
dB
Capture range
C. R.
Pilot = 10%
±1.5
%
Adjacent channel rejection ratio
B. Rej
fs = 113 kHz, VS = 90%, pilot = 10%, the pin 16 output
40
dB
[AM Characteristics: fc = 1000 kHz, fm = 1 kHz]
Quiescent current
ICCO-AM
No input
21
29
42
mA
Detector output
VO-AM (1)
23 dB, 30% modulation, the pin 16 output
25
45
90
mVrms
VO-AM (2)
80 dB, 30% modulation, the pin 16 output
195
310
490
mVrms
Signal-to-noise ratio
S/N-AM (1) 23 dB, 30% modulation, the pin 16 output
16
20
dB
S/N-AM (2) 80 dB, 30% modulation, the pin 16 output
48
54
dB
THD-AM (1) 80 dB, 30% modulation, the pin 16 output
0.3
1.0
%
Total harmonic distortion
THD-AM (2) 100 dB, 30% modulation, the pin 16 output
0.4
1.2
%
THD-AM (3) 80 dB, 80% modulation, the pin 16 output
1.0
4.0
%
SD indicator sensitivity
SD-on-AM
20
30
40
dB
Local oscillator buffer output
VOSC-AM
No input, the pin 30 output
110
160
mVrms
Low-band attenuation
Low-Cut
The output for fm = 100 Hz referenced to fm = 1 kHz
5.0
7.0
11.0
dB
IF counter buffer output
VIF Buff-AM 80 dB, unmodulated signal, the pin 11 output
140
200
280
mVrms
Stereo IF output
VSTIF-AM
80 dB, unmodulated signal, the pin 8 output
8.0
17.0
24.0
mVrms
S-meter output
VSM-AM (1) 0 dB, unmodulated signal
0
0.2
V
VSM-AM (2) 40 dB, unmodulated signal
1.3
3.0
4.5
V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
9.0
V
Allowable power dissipation
Pd max
Ta
≤ 70°C
550
mA
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
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