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參數(shù)資料
| 型號： | LA75691 |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大小： | 206K |
| 代理商： | LA75691 |
No. 5734-2/13
LA75691
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
13.2
V
Circuit voltage
V13, V17
VCC
V
I6
–3
mA
Circuit current
I10
–10
mA
I24
–2
mA
Allowable power dissipation
Pd max
Ta
≤ 68°C
720
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–55 to +150
°C
Note: When mounted on a 65
× 72 × 1.6 mm laminated paper phenolic resin printed circuit board.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[VIF Block]
Circuit current
I5
35.5
42.0
48.5
V
Maximum RF AGC voltage
V14H
7.5
8.1
V
Minimum RF AGC voltage
V14L
0
0.5
V
Input sensitivity
VIN
S1 = Off
24
30
36
dBV
AGC range
GR
62
68
dB
Maximum allowable input
VIN max
92
97
dBV
No-signal video output voltage
V6
3.5
3.8
4.2
V
Synchronizing signal tip voltage
V6 tip
1.15
1.45
1.74
V
Video output level
VO
1.7
2.0
2.3
Vp-p
Black noise threshold voltage
VBTH
0.5
0.8
1.1
V
Black noise clamp voltage
VBCL
2.5
2.8
3.1
V
Video signal-to-noise ratio
S/N
48
50
dB
C-S beating
IC-S
38
43
dB
Frequency characteristics
fC
6 MHz
–3.0
–1.5
dB
Differential gain
DG
3.0
6.5
%
Differential phase
DP
3
5
deg
Maximum AFT voltage
V13H
8.5
8.7
9.0
V
Minimum AFT voltage
V13L
0
0.18
0.5
V
AFT detection sensitivity
Sf
22.4
28.0
33.6
mV/kHz
VIF input resistance
Ri
38.9 MHz
1.5
k
VIF input capacitance
Ci
38.9 MHz
3
pF
APC pull-in range (U)
fPU
0.8
1.3
MHz
APC pull-in range (L)
fPL
–1.5
–0.8
MHz
AFT frequency tolerances 1
dfa 1
–300
0
+300
kHz
VCO1 maximum variability range (U)
dfu
1.0
1.3
MHz
VCO1 maximum variability range (L)
dfl
–1.5
–1.0
MHz
VCO control sensitivity
B
1.4
2.8
5.6
kHz/mV
5.5 MHZ output level
SO
P/S = 14 dB
92
95
98
mVrms
[SIF Block]
Limiting voltage
Vi (lim)
5.5 MHz ± 30 kHz
43
48
53
dBV
FM detector output voltage
VO (FM)
5.5 MHz ± 30 kHz
720
900
1100
mVrms
AM rejection ratio
AMR
AM = 30 %
50
60
dB
Total harmonic distortion
THD
0.3
0.8
%
SIF signal-to-noise ratio
S/N (FM)
57
62
dB
Operating Characteristics at Ta = 25°C, VCC = 9 V, fP = 38.9 MHz
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
9
V
Operating supply voltage range
VCC op
8.5 to 12.5
V
Operating Conditions
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