
Electrical Characteristics
at Ta = 25°C, V
CC
= V4 = V26 = 7.6 V, I
CC
= I21 = 19 mA
No. 5844-2/27
LA76070
Continued on next page.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[Circuit Voltages and Currents]
Horizontal power supply voltage
HV
CC
I4 (IFI
CC
)
7.2
7.6
8.0
V
IF power supply current (V4)
IF AGC: 5 V
38
46
54
mA
Video, chroma,
and vertical power supply current (V26)
I26 (YCVI
CC
)
79.5
93.5
107.5
mA
[VIF Block]
AFT output voltage with no signal
VAFTn
With no input signal
2.8
3.8
4.8
Vdc
Video output voltage with no signal
VOn
With no input signal
4.7
4.9
5.1
Vdc
APC pull-in range (U)
fPU
After APC and PLL DAC adjustment
1.0
MHz
APC pull-in range (L)
fPL
After APC and PLL DAC adjustment
1.0
MHz
Maximum RF AGC voltage
VRFH
CW = 91 dBμ, DAC = 0
7.7
8.2
9.0
Vdc
Minimum RF AGC voltage
VRFL
CW = 91 dBμ, DAC = 63
0
0.2
0.4
Vdc
RF AGC Delay Pt (@DAC = 0)
RFAGC0
DAC = 0
96
dBμ
RF AGC Delay Pt (@DAC = 63)
RFAGC63
DAC = 63
86
dBμ
Maximum AFT output voltage
VAFTH
CW = 93 dBμ, variable frequency
6.2
6.5
7.6
Vdc
Minimum AFT output voltage
VAFTL
CW = 93 dBμ, variable frequency
0.5
0.9
1.2
Vdc
AFT detection sensitivity
VAFTS
CW = 93 dBμ, variable frequency
33
25
17
mV/kHz
Video output amplitude
VO
93 dBμ, 87.5% Video MOD
1.8
2.0
2.2
Vp-p
Synchronization signal tip level
VOtip
93 dBμ, 87.5% Video MOD
2.4
2.6
2.8
Vdc
Input sensitivity
Vi
Output at –3 dB
43
46
dBμ
Video-to-sync ratio (@100 dBμ)
V/S
100 dBμ, 87.5% Video MOD
2.4
2.5
3.0
Differential gain
DG
93 dBμ, 87.5% Video MOD
2
10
%
Differential phase
DP
93 dBμ, 87.5% Video MOD
2
10
deg
Video signal-to-noise ratio
S/N
CW = 93 dBμ
55
58
dB
920 kHz beat level
I920
V3.58 MHz/V920 kHz
–50
dB
[Video and Switching Block]
External video gain
AUXG
Stair step, 1 V p-p
5.5
6.0
6.5
dB
External video sync signal tip voltage
AUXS
Stair step, 1 V p-p
–0.2
0.0
+0.2
Vdc
External video crosstalk
AUXC
4.2 MHz, 1Vp-p
60
dB
Internal video output level
INTO
93 dBμ, 87.5% Video MOD
–0.1
0.0
+0.1
Vp-p
[SIF Block]
FM detector output voltage
SOADJ
464
474
484
mVrms
FM limiting sensitivity
SLS
Output at –3 dB
50
dBμ
FM detector output bandwidth
SF
Output at –3 dB
50
100 k
Hz
FM detector output total
harmonic distortion
STHD
FM = ±25 kHz
0.5
%
AM rejection ratio
SAMR
AM = 30 %
40
dB
SIF signal-to-noise ratio
SSN
60
dB
[Audio Block]
Maximum gain
AGMAX
1 kHz
–2.5
0.0
+2.5
dB
Adjustment range
ARANGE
60
67
dB
Frequency characteristics
AF
20 kHz
–3.0
+3.0
dB
Muting
AMUTE
20 kHz
75
dB
Total harmonic distortion
ATHD
1 kHz, 400 m Vrms, Vo1: MAX
0.5
dB
Signal-to-noise ratio
ASN
DIN.Audio
65
75
dB
[Chroma Block]
ACC amplitude characteristics 1
ACCM1
Input: +6 dB/0 dB, 0 dB = 40 IRE
0.8
1.0
1.2
times
ACC amplitude characteristics 2
ACCM2
Input: –14 dB/0 dB
0.7
1.0
1.1
times
B-Y/Y amplitude ratio
CLRBY
100
125
140
%
Color control characteristics 1
CLRMN
Color MAX/NOM
1.6
1.8
2.1
times
Color control characteristics 2
CLRMM
Color MAX/MIN
33
40
50
dB