參數(shù)資料
型號: LA7577N
廠商: Sanyo Electric Co.,Ltd.
英文描述: Super-Split,PLL-II VIF and SIF IF Signal Processor for TV/VCRs(用于電視機/VCR應(yīng)用的IF信號處理(鎖相環(huán)II VIF+SIF)電路)
中文描述: 超斯普利特,鎖相環(huán)-Ⅱ資料表格及SIF中頻信號處理器的電視/錄像機(用于電視機/錄像機應(yīng)用的中頻信號處理(鎖相環(huán)二資料表格強度因子)電路)
文件頁數(shù): 3/16頁
文件大?。?/td> 439K
代理商: LA7577N
LA7577N
No. 4037—3/16
Electrical Characteristics
at Ta = 25
°
C, V
CC
= 9V
VCO control sensitivity
β
V
18
= 4.6 to 5V
1.5
3.1
6.2
kHz/mV
[1st SIF]
4.5MHz conversion gain
VG
21
26
31
dB
4.5MHz output level
V
SIF1
V
i
= 10mVrms
50
75
110
mVrms
1st SIF stage maximum input
V
SIF
max
+2.2dB,
1dB
60
70
-
mVrms
1st SIF stage input resistance
R
i
(SIF1)
f = 54.25MHz
1.2
2
2.7
k
1st SIF stage input capacitance
C
i
(SIF1)
f = 54.25MHz
3
6
pF
[SIF]
SIF limiting sensitivity
V
i
(lim)
V
13
= 5V
33
39
dB/
μ
V
FM detector output voltage
V
o
V
13
= 5V
400
600
790
mVrms
AM rejection
AMR
V
13
= 5V
40
49
dB
Total harmonic distortion
THD
V
13
= 5V
0.5
1.0
%
SIF signal-to-noise ratio
S/N (SIF)
V
13
= 5V
60
78
dB
[Mute, Defeat]
AFT defeat start voltage
V
D11
0.5
2.3
V
AV mute threshold
V
4TH
0.5
1.9
V
FM mute threshold
V
2TH
0.5
2.0
V
AFT defeat voltage
V
D14
5.4
6
6.6
V
Parameter
Symbol
Conditions
min
typ
max
Unit
[VIF]
Circuit current
I
9
V
13
= 5V
39
48
59
mA
Quiescent video output voltage
V
21
V
13
= 5V
5.0
5.4
5.8
V
Maximum RF AGC voltage
V
10H
V
13
= 7V
7.6
8
8.4
V
Minimum RF AGC voltage
V
10L
V
13
= 7V
0
0.5
V
Quiescent AFT voltage
V
14
V
13
= 5V
2.6
4.5
6.0
V
Input sensitivity
V
i
37
43
49
dB/
μ
V
Video output amplitude
V
o
(video)
1.5
1.75
2.0
Vp-p
Sync signal tip voltage
V
21
(tip)
V
i
= 10mV
3.25
3.55
3.85
V
Maximum AFT voltage
V
14H
8
8.5
9.0
V
Minimum AFT voltage
V
14L
0.3
1.0
V
White-noise threshold voltage
V
WTH
6.8
7.2
7.6
V
White-noise clamp voltage
V
WCL
4.0
4.4
4.8
V
Black-noise threshold voltage
V
BTH
2.5
2.8
3.1
V
Black-noise clamp voltage
V
BCL
2.5
4.1
4.5
V
AFT detector sensitivity
S
f
28
39
55
mV/kHz
[SIF]
FM detector output voltage
V
o
V
13
= 5V
400
600
790
mVrms
[Mute, Defeat]
AFT defeat start voltage
V
D11
0.5
1.6
V
AV mute threshold
V
4TH
0.5
1.1
V
FM mute threshold
V
2TH
0.5
1.9
V
AFT defeat voltage
V
D14
3.9
4.5
5.1
V
Parameter
Symbol
Conditions
min
typ
max
Unit
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