NTE1845 PDF даташит
Спецификация NTE1845 изготовлена «NTE» и имеет функцию, называемую «Integrated Circuit TV Video Processor». |
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Детали детали
Номер произв | NTE1845 |
Описание | Integrated Circuit TV Video Processor |
Производители | NTE |
логотип |
3 Pages
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NTE1845
Integrated Circuit
TV Video Processor
Description:
The NTE1845 is a small–sized multifunctional IC containing the “video, chroma, deflection” circuit of
NTSC color TV in a shrink type 30–Lead DIP package. Besides being small–sized, it has such fea-
tures as greately reduced number of parts and fewer adjustments required. The device contains a
peak clip circuit and is well suited for use in small–sized sets.
Features:
D Small–Sized Package
D Minimum Number of Parts Required
D Fewer Adjustments Required
D Chroma VCO (APC)
D Horizontal OSC (H–Hold)
D Vertical OSC (V–Hold)
D Multifunction
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, V16(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Maximum Supply Current, I22(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.0mA
Allowable Power Dissipation (TA ≤ +65°C), PD(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW
Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, V16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Recommended Supply Current, I22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 to 14V
Operating Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 to 15.0mA
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Electrical Characteristics: (TA = +25°C, V16 = 12V, I22 = 10mA unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Chroma
ACC Amplitude Characteristics
ACC1
–3 0 +3 dB
ACC2
–7 0 +2 dB
ACC Phase Characteristics
ACC∅1
– 0 ±3 deg
ACC∅2
– 0 ±7 deg
Maximum B–Y Demodulation Output
Unicolor Amplitude Characteristics
B–Y max
∆GU
5.0 –
– 17
– VP–P
– dB
Tint Change Range
∆T
– 110 – deg
APC Pull–In Range
Color Difference Output DC Voltage
Color Difference DC Difference Voltage
R–Y Relative Demodulation Angle
fAPC
ERGB
E∆RGB
∠R–Y/B–Y
±300
–
–
6.7 7.2 7.7 V
– – ±300 mV
– 104 – deg
G–Y Relative Demodulation Angle
∠G–Y/B–Y
– –122 – deg
R–Y Demodulation Ratio
R–Y/B–Y
– 0.9 –
G–Y Demodulation Ratio
G–Y/B–Y
– 0.3 –
Video
Video Tone Control Characteristics
Video Voltage Gain
Gpmin
Gpmax
VG
–5 –3 –1 dB
12 15 18 dB
12 15 18 dB
Contrast Variable Range
∆GC
– 18 – B
Frequency Response
∆GV f = 5MHz
–5 –
– dB
Synchronization, Deflection
Sync Separation Input DC Level
Vertical Free–Running Frequency
Vertical Blanking Pulse Width
Vertical Drive Stage Voltage Gain
VS.S
fV
TBL
VG
– 9.3 –
– fH/296.5 –
– 19H –
– 16 –
V
Hz
dB
Horizontal Free–Running Frequency
Horizontal Drive Output Pulse Width
Horizontal Sync Pull–In Range
fH
TH
fPULL
– 15.734 – kHz
– 24.5 – µs
±400
–
– Hz
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Pin Connection Diagram
2nd BPA 1
Sharp Video 2
Soft Video 3
Contrast 4
Contrast VR 5
Pedestal Clamp 6
Brightness Control 7
Brightness VR 8
R–Y 9
G – Y 10
B – Y 11
Color Killer 12
Tint Control 13
VCO 14
APC 15
30 1st BPA
29 ACC
28 GND
27 Sync Separator
26 Burst Gate Pulse
25 Vert Sync Separator
24 Ramp Generator
23 Vert Driver
22 (+) BH (110V)
21 AFC
20 (+) BH
19 Horiz OSC
18 X–Ray Protect
17
Horiz Pre–Driver
Output
16 VCC
30 16
1
1.066 (27.0)
.070 (1.78)
15
.200
(5.08)
Max
.388 (8.6)
.125 (3.17)
.400 (10.16)
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