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參數(shù)資料
| 型號： | LA7685J |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 封裝： | SDIP-64 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 223K |
| 代理商： | LA7685J |
Electrical Characteristics at Ta=25 °C, VCC =V2 =V12 =9 V, ICC =I32 =13mA
Parameter
Symbol
Conditions
min
typ
max
Unit
[Circuit Voltage, Current]
Horizontal supply voltage
V32
VCC =9V,ICC = 13 mA
7.1
7.6
8.1
V
Supply current
I2 + 12
VCC =9V,ICC = 13 mA, IFAGC=4V
102
120
138
mA
[VIF Block] fp = 38.9 MHz
Video output voltage
with no signal
V56
No signal
4.3
4.7
5.1
V
AFT output voltage
with no signal
V60
No signal
3.0
4.5
6.0
V
Maximum RF AGC voltage
V5H
CW = 85 dB, RF AGC VR = min
7.6
8.0
8.3
V
Minimum RF AGC voltage
V5L
CW = 85 dB, RF AGC VR = max
0
0.01
0.3
V
Input sensitivity
Vi
Video output is 0.8 Vp-p (40 % MOD), VIF input
level
33
39
45
dB
AGC range
GR
Maximum input (V0 = 0.8 Vp-p) – Input sensitivity
54
62
dB
Maximum allowable input
Vi max
Video output is +1 dB. VIF input level
97
104
dB
Video output amplitude
VO56
Vi = 80 dB, AM = 78 % MOD
1.7
2.0
2.3
Vp-p
Differential gain
DG
Vi = 80 dB, 87.5 %, VIDEO MOD
3.0
10
%
Differential phase
DP
Vi = 80 dB, 87.5 %, VIDEO MOD
1.0
10
deg
Video S/N
S/N
Vi = 80 dB, 20 log
1.46 (Vp-p)
Noise (Vrms)
47
54
dB
Sync signal tip level
V56 TIP
CW = 80 dB
2.1
2.4
2.7
V
Frequency characteristics
fC
Frequency when video output is –3 dB
6.5
8.0
MHz
1.07 kHz beat level
I1.07
V4.43 MHz/V1.07 MHz, Vi = 80 dB
35
50
dB
Maximum AFT output voltage
V60H
CW = 80 dB, frequency change
7.6
8.0
8.4
V
Minimum AFT output voltage
V60L
CW = 80 dB, frequency change
0.6
1.0
1.4
V
AFT detection sensitivity
Sf
CW = 80 dB, frequency change
50
80
110
mV/kHz
AFT defeat start voltage
VAFT SW
Measure with sweep signal
0.5
1.0
V
Black noise threshold level
VBTH
Measure with sweep signal
1.1
1.4
1.7
V
APC pull-in range (U)
fPU
CW = 80 dB, fp = 34 MHz to 44 MHz
0.8
1.7
MHz
APC pull-in range (L)
fPL
CW = 80 dB, fp = 53 MHZ to 64 MHz
–2
–1
MHz
VCO maximum variable range
fU
No signal
0.9
1.7
MHz
fL
No signal
–2
–1
MHz
VCO control sensitivity
β
No signal
1.3
2.5
5.3
kHz/mV
[AVSW Block]
Image output DC voltage
V50
No signal
3.0
3.4
3.8
V
Internal image input voltage
V54
No signal
4.4
4.8
5.2
V
External image input voltage
V52
No signal
4.4
4.8
5.2
V
External audio input voltage
V4
No signal
5.2
5.6
6.0
V
[1st SIF Block]
5.5 MHz conversion gain
VG
Vi = 70 dB, 33.4 MHz
21
26
31
dB
Output level
V59
Vi = 10 mV, 33.4 MHz
210
320
480
mVp-p
Maximum input level
V11max
fS = 33.4 MHz
96
101
dB
[SIF ATT Block] fS 5.5 MHz
SIF limiting voltage
Vi lim
SIF input when detection output is –3 dB.
40
47
dB
FM detection output voltage
VO1
Vi = 100 dB,
f = ± 30kHz
390
500
630
mVrms
FM dectection output distortion
THD
Vi = 100 dB,
f = ±30 kHz
0.4
1.0
%
AM rejection ratio
AMR
Vi = 100 dB,
FM :
f = ±30 kHz
AM:30%
40
60
dB
ATT voltage gain
GAF
Vi=1Vrms, f = 400 Hz
–1
0
1
dB
Maximum attenuation of
electronic volume control
ATT
Vi=2Vrms, f = 400 Hz
70
80
dB
[Video Block]
Black extension threshold
BSTH
APL variable, input 0.5 Vp-p
40
50
60
IRE
Maximum black extension gain
BSmax
APL variable, input 0.5 Vp-p
–30
–22
–13
IRE
Soft video tone varlable range
Soft
f = 2 MHz, 100 mVp-p
Video tone VR :4V → 0V
–6
–4
–2
dB
Continued on next page.
LA7685J
No.5153-3/10
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