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參數資料
| 型號： | LA7566 |
| 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： | 4/11頁 |
| 文件大小： | 233K |
| 代理商： | LA7566 |
No. 5764-2/11
LA7566
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
9
V
Operating supply voltage range
VCC op
4.6 to 9.5
V
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[VIF Block]
Circuit current
I3
45
53
61
mA
Maximum RF AGC voltage
V9H
7.5
8.1
V
Minimum RF AGC voltage
V9L
0
0.5
V
Input sensitivity
VIN
S1 = OFF
28
34
40
dBV
AGC range
GR
45
50
dB
Maximum allowable input
VIN max
95
100
dBV
No-signal video output voltage
V13
3.7
4.0
4.3
V
Sync tip voltage
V13 tip
1.3
1.6
1.9
V
Video output level
VO
1.7
2.0
2.3
Vp-p
Black noise threshold voltage
VBTH
0.7
1.0
1.3
V
Black noise clamp voltage
VBCL
2.0
2.3
2.6
V
Video signal-to-noise ratio
S/N
48
52
dB
C-S beat
IC-S
44
49
dB
Frequency characteristics
fC
6 MHz
–3
–1.5
dB
Differential gain
DG
3
8
%
Differential phase
DP
3
8
deg
Maximum AFT voltage
V10H
7.5
8.5
9.0
V
Minimum AFT voltage
V10L
0
0.2
1.0
V
AFT detection sensitivity
Sf
29
37
47
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
1.0
1.5
MHz
APC pull-in range (L)
fPL
–1.5
–0.8
MHz
AFT tolerance frequency 1
dfa1
–500
0
+500
kHz
VCO 1 maximum variability range (U)
dfu
1.7
2.0
MHz
VCO 1 maximum variability range (L)
dfl
–2
–1
MHz
VCO control sensitivity
B
1.15
2.3
4.6
kHz/mV
[First SIF Block]
Conversion gain
VG
32
35
38
dB
5.5 MHz output level
SO
84
87
90
mVrms
Maximum first SIF input
SIN max
85
88
91
mVrms
First SIF input resistance
RIN(SIF)
33.4 MHz
2
k
First SIF input capacitance
CIN(SIF)
33.4 MHz
3
pF
[SIF Block]
Limiting sensitivity
VIi(lim)
43
49
dBV
FM detector output voltage
VO(FM)
5.5 MHz ± 30 kHz
390
500
630
mVrms
AM rejection ratio
AMR
50
60
dB
Total harmonic distortion
THD
0.2
1.5
%
SIF S/N
S/N (FM)
55
60
dB
[SIF Switch Block] Switches A, B, and C: H = open, L = ground
NTSC mode 6-dB amplifier
NTSW
5
6
7
dB
SIF crosstalk 21
CT21
51
57
dB
SIF crosstalk 22
CT22
51
57
dB
SIF crosstalk 23
CT23
51
57
dB
SIF crosstalk 24
CT24
51
57
dB
Switch threshold low-level voltage
SW (L)
1.0
1.5
V
Operating Characteristics at Ta = 25°C, VCC = 9 V, fp = 38.9 MHz
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