NTE7150 PDF даташит
Спецификация NTE7150 изготовлена «NTE Electronics» и имеет функцию, называемую «Integrated Circuit Video / Chroma / and Sync. Signal Processing Circuit for PAL/NTSC/SECAM System Color Televisions». |
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Детали детали
Номер произв | NTE7150 |
Описание | Integrated Circuit Video / Chroma / and Sync. Signal Processing Circuit for PAL/NTSC/SECAM System Color Televisions |
Производители | NTE Electronics |
логотип |
8 Pages
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NTE7150
Integrated Circuit
Video, Chroma, and Sync. Signal Processing Circuit
for PAL/NTSC/SECAM System Color Televisions
Description:
The NTE7150 is an integrated circuit in a 64–Lead SIP type package designed for PAL/NTSC/SECAM
system color televisions involving video, chroma, and sync. signal processing circuits.
The video section contains a high–performance picture quality emphasis circuit, the chroma section
contains a PAL/NTSC/SECAM system automatic identification circuit, and the sync. section contains
a 50/60Hz automatic identification circuit. The PAL/SECAM demodulating circuit uses a baseband
signal processing system, providing an adjustment–free demodulating circuit. User control functions,
system switching, etc. are controlled via the I2C bus.
Features:
Video Section
D Sharpness Control with Internal Delay Lines
D Black Stretching Circuit
D YNR
D Variable DC Restoration Ratio
D Gamma (g) Contrast Correction
Chroma Section
D PAL/SECAM baseband Demodulation System
D Automatic Srystal Frequency Identification (4.43MHz/3.58MHz/M, N–PAL)
D Automatic Chroma System Identification (PAL/NTSC/SECAM)
D PLL SECAM Adjustment–Free Demodulation Circuit without and Tank Coils
D Built–In SECAM BELL Filter
Sync. Section
D Adjnustment–Free Horizontal and Vertical Oscillation Circuits based on Countdown System
D Automatic Vertical Frequency Identification (50/60Hz)
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2660mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2mW/°C
Input Signal Amplitude, ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VP–P
Applied Voltage, Ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND–0.3V to VCC+0.3V
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +65°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Recommended Operating Conditions:
Parameter
Test Conditions
Supply Voltage
At Pin19, Pin36, Pin50, and Pin59
At Pin5
At Pin4
Min Typ Max Unit
8.1 9.0 9.5 V
8.1 9.0 10.0 V
3.0 3.3 3.6 V
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Recommended Operating Conditions (Cont’d):
Parameter
Test Conditions
Video Input Signal Level
Composite Video Signal Amplitude
Chroma Input Signal Level
PAL/NTSC Chroma Input
SECAM Chroma Input
Sync Input Signal Level
Composite Video Signal Amplitude
Text Input Signal Level
FBP Width
FBP Input Current
RGB Output Current
H. Out Output Current
VP Output Current
Min Typ Max Unit
0.7 1.0 1.2 VP–P
100 200 300 mVP–P
50 100 150 mVP–P
1.0 2.0 2.5 VP–P
0.5 0.7 1.0 VP–P
11 12 13 µs
0.3 1.0 1.3 mA
– 1.0 2.0 mA
– 3.0 5.0 mA
– 1.0 2.0 mA
DC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)
Parameter
Test Conditions
Min Typ Max Unit
Supply Current
Terminal Voltage
Logic VCC (Pin4) = 3.3V
10 20 28
Video/Chroma VCC Turned OFF 15 30 40
H. VCC (Pin5) = 9V
10 20 28
Video/Chroma VCC Turned OFF 15 30 40
TEXT Section VCC (Pin19) = 9V
15 31 44
SECAM Section VCC (Pin36) = 9V
10 18 25
Chroma Section VCC (Pin50) = 9V
12 27 38
Video Section VCC (Pin59) = 9V
17 37 52
Pin2
7.2 7.4 7.8
mA
mA
mA
mA
mA
mA
mA
mA
V
Pin16, Pin17, and Pin18 (In Mute Mode)
1.7 2.0 2.3
V
Pin22, Pin23, and Pin24 (Uni–Color DAC center)
3.3 3.8 4.2
V
Pin63 (Apply 5V with 5.1kΩ Resistor, Measure DC Output 3.1 3.5 3.9
Voltage at Trace Period)
V
AC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)
Parameter
Test Conditions
Min Typ Max Unit
Video Section
Y Input Dynamic Range
Upper
Lower
Y Input Impedance
Measure dynamic range above the pedestal level 0.7 1.0 1.3 VP–P
Measure dynamic range below the pedestal level 0.0 0.3 0.5 VP–P
Measure input impedance of Pin60
100 130 –
kΩ
Y Input Clamp Voltage
Measure DC voltage at Pin60 when Y input
connected to AC GND.
2.5 2.8 3.1
V
Maximum Y Gain
15.0 17.5 23.0 dB
Y Frequency Bandwidth
8 10 15 MHz
Black Stretching Amp Maximum Gain
1.3 1.4 1.5
Black Stretching Start Point
40 50 65 IRE
DC Restoration Ratio
97 100 103 %
Black Stretching Start Voltage
3.2 3.3 3.6
V
Delay Time of Sharpness Circuit
Measure difference in Y output signal delay time 115 125 135
between sharpness SW turned ON and OFF.
ns
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AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)
Parameter
Test Conditions
Min Typ Max Unit
Video Section (Cont’d)
Sharpness Control
Maximum Gain
Center Gain
Minumim Gain
Input 2T pulse VBS to TP60 and TP63. Measure
2T pulse output gain of data = 3FH, 20H, and
00H. 0dB is equal to the output gain of sharpness
SW OFF.
3.5
0.5
–3
5.5
1.5
–1
7.5
3.5
+1
dB
dB
dB
YNR Gain
–20 –13 –8
dB
Contact Control
Center Gain
Minimum Gain
Measure Y output gain of data = 40H and 00H. –4.0 –5.5 –7.0
Maximum Y gain is 0dB.
–17 –19 –21
dB
dB
g Point
Va
Vb
g Gain
Ga
Gb
Y Signal to Noise Ratio
40 50 60 IRE
80 90 100 IRE
–1 –3
–4 –6
50 55
–5
–8
60
dB
dB
dB
Chroma Section 1 (PAL/NTSC)
ACC Output Characteristics
e300
e100
Input rainbow signal whose burst and chroma 260
signal level is 300mVP–P and 100mVP–P.
Measure sugnal amplitude at Pin41.
260
370
370
520 mVP–P
520 mVP–P
ACC Flatness
3300/e100
0.9 1.0 1.1
Killer–On Level
PAL
NTSC
Input color bar signal. Measure burst amplitude 0.2 0.5 1.0 mVP–P
at which color begins to disappear when burst is
gradually reduced.
0.2 0.5 1.0 mVP–P
Killer–Off Level
PAL
NTSC
Input color bar signal. Measure burst amplitude 1.0 2.5 4.0 mVP–P
at which color begins to be tinted when burst is
gradually increased from 0.
1.0 2.5 4.0 mVP–P
APC Pull–In Range
3.58MHz
4.43MHz
M PAL
VCXO Freq Control Sensitivity
4.43MHz
3.58MHz
M PAL
fo = 3.579545MHz
fo = 4.433619MHz
fo = 3.575611MHz
±300
±300
±300
±500
±500
±500
±1000
±1000
±1000
Hz
Hz
Hz
Fix X–tal mode with bus. Measure frequency
changes at TP28 when varying TP26 voltage
from 6.2V to 6.3V.
1.7
1.5
1.8
2.4
2.2
2.5
3.2 Hz/mV
3.0 Hz/mV
3.3 Hz/mV
fsc Output Amplitude
4.43MHz
3.58MHz
fsc Output Voltage
4.43MHz
3.58MHz
B–Y Output Amplitude
4PAL
3NTSC
Fix X’tal mode with bus. Measure signal
amplitude at TP28.
130 150
120 140
170 mVP–P
160 mVP–P
Fix X’tal mode with bus. Measure DC voltage at 3.6
TP28.
2.8
3.9
3.1
4.2
3.4
V
V
Input rainbow signal. Measure signal amplitude 260 370
at Pin41.
260 370
520 mVP–P
520 mVP–P
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