TV Video/Chroma/Deflection. NTE1856 Datasheet

NTE1856 Video/Chroma/Deflection. Datasheet pdf. Equivalent

Part NTE1856
Description Integrated Circuit Color TV Video/Chroma/Deflection
Feature NTE1838 & NTE1856 Integrated Circuit Color TV Video/Chroma/Deflection Circuit Description: The NTE18.
Manufacture NTE
Datasheet
Download NTE1856 Datasheet




NTE1856
NTE1838 & NTE1856
Integrated Circuit
Color TV Video/Chroma/Deflection Circuit
Description:
The NTE1839 and NTE1856 are small–sized multifunctional integrated circuits containing the “video,
chroma, deflection” circuit of NTSC color TVs in a 30–Lead DIP type package. Besides being small–
sized, they have such features as fewer external components and fewer adjustments. required. The
NTE1838/NTE1856 can be used in conjunction with the NTE1728 for “VIFSIF” use or the
NTE1773/NTE1797 for “vertical output” use to perform all color TV signal processings.
The NTE1856 contains a peak clip circuit in the video circuit making it well suited for use in small–sized
TV sets while the NTE1838 contains no peak clip circuit and is suited for large–sized TV sets.
Features:
D Small–Sized Package
D Minimum Number of External Components Required
D Fewer Adjustments Required (Non–Adjusting of Functions Shown Below)
G Chroma VCO (APC)
G Horizontal OSC (H–Hold)
G Vertical OSC (V–Hold)
D Multifunctional
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V16max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Maximum Supply Current, I22max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Allowable Power Dissipation (TA +65°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Recommended Supply Voltage
Recommended Supply Current
V16
I22
9.0 12.0 14.0 V
8.5 10.0 15.0 mA



NTE1856
Electrical Characteristics: (TA = +25°C, V16 = 12V, I22 = 10mA unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Chroma
ACC Amplitude Characteristic
ACC Phase Characteristic
ACC1
ACC2
ACCØ1
ACCØ2
3 0 +3 dB
7 0 +2 dB
0 ±3 deg
0 ±7 deg
Maximum BY Demodulation Output
Unicolor Amplitude Characteristic
BYmax
GU
5.0
17
VPP
dB
Tint Change Range
T
110 deg
APC PullIn Range
fAPC
±300
Color Difference Output DC Voltage
Color Difference DC Difference Voltage
RY Relative Demodulation Angle
ERGB
ERGB
RY/BY
6.7 7.2 7.7 V
– – ±300 mV
104 deg
GY Relative Demodulation Angle
GY/BY
– –122 deg
RY Demodulation Ratio
RY/BY
0.9
GY Demodulation Ratio
GY/BY
0.3
Video
Video Tone Control Characteristic
GPmin
5 3 1 dB
GPmax
12 15 18 dB
Video Voltage Gain
Contrast Variable Range
Frequency Response
VG
GC
GV
f = 5MHz
12 15 18 dB
18 dB
5
dB
Synchronization, Deflection
Sync Separation Input DC Level
Vertical FreeRunning Frequency
Vertical Blanking Pulse Width
Vertical Drive Stage Voltage Gain
VSS
fV
TBL
VG
9.3
fH/296.5
19H
16
V
Hz
dB
Horizontal FreeRunning Frequency
Horizontal Drive Output Pulse Width
Horizontal Sync PullIn Range
fH
TH
fPULL
15.734
24.5
±400
kHz
µs
Hz







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