NTE7148 Ver la hoja de datos (PDF) - NTE Electronics
Número de pieza
componentes Descripción
Fabricante
NTE7148 Datasheet PDF : 7 Pages
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Electrical Characteristics (Cont’d): (TA = +25°C, VCC = V11 = V14 = 9V, ICC = I30 = 13mA unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Video (Cont’d)
Contrast Control Center
CCEN f = 100MHz, 100mVP–P, contrast VR: 6V 0.40 0.48 0.57
Contrast Variable Control Range ∆CV Contrast VR: 3V → 9V
18 20 22
Bright Control
B RH Bright VR: 2V
5.5 6.5 7.5
B RCEN Bright VR: 4.5V
3.1 3.6 4.1
B RL Bright VR: 7.5V
– 0.3 1.2
D.L. Off Frequency
Characteristics
fV 9V Contrast VR: 6V, video tone VR: 4V,
3dB down
7
8
–
VP–P
dB
V
V
V
MHz
D.L. On Frequency
Characteristics
fV 0V Contrast VR: 6V, video tone VR: 4V,
3dB down
2.5 3.0 4.0 MHz
DC Transmission
Delay Line Delay
Chroma
RDC Input: stair step signal, 500mVP–P
TDL Input: white 100%
100 103 106 %
290 340 390 ns
ACC Amplitude Characteristics
ACC Phase Characteristics
Killer Operation Point
Color Control Color Residual
Color Control Center
Maximum Demodulator Output
Color Contrast Variable Range
ACC1
ACC2
ACCP1
ACCP2
EK
EC min
EC CEN
EC max
∆CC
+6dB
–20dB
+6dB
–20dB
Color VR: 0V, contrast VR: 9V
Color VR: 4.5V, contrast VR: 6V
Color VR: 9V, contrast VR: 9V
Color VR: B–Y = 2.5VP–P,
contrast VR: 3V → 9V
–3 0 +3
dB
–7 0 +2
dB
–3 0 +3
°C
–7 0 +7
°C
–35 –28 –21 dB
–
–
50 mVP–P
1.2 1.8 2.4 VP–P
3.2 4.0 4.8 VP–P
17.5 19.5 21.5 dB
Tint Color Center
TCEN Tint VR: 4.5V, color VR: 4.5V,
contrast VR: 6V
0 12 24
°C
Tint Variable Range
∆T Tint VR: 0V ← 4.5V → 8V,
color VR: 4.5V, contrast VR: 6V
±40 ±55 ±70 °C
APC Pull–In Range
Demodulator Output Ratio
∆fAPC
±300 ±500 –
Hz
R/B Monochrome signal, contrast VR: 6V,
G/B color VR: B–Y = 1VPO
0.81 0.90 0.98
0.24 0.30 0.38
Demodulator Phase Angle
RB
97 105 113 DEG
GB
–130 –120 –110 DEG
Demodulator Output DC Voltage
Demodulator Output DC Offset
Voltage
VC–Y
∆VC–Y
Burst signal only, color VR: 0V
Burst signal only, color VR: 0V
4.7 5.2 5.7
V
–200 0 +200 mV
Demodulator Output Residual
Carrier
E car Quiescent, killer off, color VR: 0V
–
– 0.05 VP–P
OSD
Blanking Pulse Threshold Level
–Y Out DC Voltage (OSD Mode)
THBL
V–Y
C – IN: color bar, B – IN: variable
B – IN: 1.5V
0.5 0.8 1.1
V
2.5 2.8 3.1
V
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