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參數資料
| 型號： | LA1135 |
| 元件分類： | 接收器 |
| 英文描述： | AM, AUDIO SINGLE CHIP RECEIVER, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁數： | 5/20頁 |
| 文件大小： | 294K |
| 代理商： | LA1135 |
LA1135, 1135M
No.1272-13/20
– 80
– 70
– 60
– 50
– 40
– 30
– 20
– 10
– 70
– 60
– 50
– 40
– 30
– 20
– 10
0
1
2
3
4
5
6
7
0
80
100
60
40
20
120
80
100
60
40
20
120
140
Spurious Characteristics
– 70
– 60
– 50
– 40
– 30
– 20
– 10
0
10
1M
7
5
3
2
10M
Frequency deviation,
Δf – kHz
Output
–
d
B
Difference in input at -25dBm output
Detection output at 30% mod
Detection output 30% mod
Signal characteristic
fr = 900kHz fm = 400Hz 30% mod
fr = 1350kHz 74dBμ 130dBμ
74dB
μ
f r
=
900kHz
130dB
μ
IF interference
Wide-band AGC cutoff
Input at 20dB S/N
Input at -25dBm output
Complete tuning
(Beat max. at
900kHz tuning
Complete tuning
(Zero beat)
Tweet max
THD 74
THD 130
Noise
30%
mod
THD
80%
mod
THD
80%
mod
30%
mod
VSM
VOSC
S/N-74
Detuning Characteristics
– 60
– 20
– 30
– 40
– 50
– 10
– 30
20
10
0
– 10
– 20
30
Receiving frequency, fr –Hz
Detection
output,
V
O
-74
–
dBm
Vary VT so that
tweet output is
maximized at each
point.
THD -- fm
Detection Output, THD -- Modulation Characteristics
0
4
5
6
7
3
2
1
8
– 30
– 20
– 10
0
3
1k
2
100
7
53
2
3
7
55
fm –Hz
T
otal
harmonic
distortion,
THD
–
%
Output
–
dBm
fr = 1MHz
VIN = 74dBμ
Overall Characteristics
Input voltage, VIN –dBμ
Output
–
dBm
T
otal
harmonic
distortion,
THD
–
%
S
meter
output,
V
SM
–V
fr = 1MHz
fm = 400Hz
VCC = 8V
– 80
0
140
Tweet Input Characteristics
ANT input – dB
μ
Output
–
d
B
μ
300
400
500
40
50
60
70
30
20
10
80
0
1
2
60
70
80
90
50
40
3
100
400
1200
1000
800
600
1400
1600
Band Characteristics
Receiving frequency, fr – kHz
M.S.,
Q.S.
–
d
B
μ
T
otal
harmonic
distortion,
THD
–
%
IF
interference,
image
frequency
interference,
S/N
-74
–d
B
VCC = 8V
Tracking at each point
Image
frequency
interference
0
80
100
60
40
20
120
Detection
output
Distortion
Modulation – %
0
400
500
600
300
200
100
0
3
2
1
700
Output
–
mVrms
fm = 400Hz
fr = 1MHz
Input : 74dB
μ
T
otal
harmonic
distortion,
THD
–
%
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