NTE NTE1808 Datasheet
NTE1808
Integrated Circuit
Playback Video Processor for VCR
Description:
The NTE1808 is a integrated circuit in a 28–Lead DIP type package designed for VCR playback video
signal processin circuits.
Features:
D Built–In Line Noise Canceler
D Built–In Picture Control Circuit
D Supply Voltage: V
CC
= 5V
Absolute Maximum Ratings
Supply Voltage, V
Power Dissipation (T
CC
= +70°C), P
A
: (TA = +25°C unless otherwise specified)
D
Operating Ambient Temperature Range, T
Storage Temperature Range, T
Electrical Characteristics
Parameter Symbol Test Conditions Min Typ Max Unit
Circuit Current I
DOC Amplifier Gain G
DOC Sensitivity ON S
DOC Sensitivity OFF (Hysteresis) DS
Sub FM Demodulation Det.
Sensitivity
Sub FM Demodulation Det.
Limitation
Main FM Demodulation Det.
Sensitivity
Main FM Demodulation Det.
Limitation
stg
: (VCC = 5V, TA = +25°C unless otherwise specified)
23
Pin24 Input (60mV
25
Pin26 Input (4MHz), 0dB = 350mV
28
28
S
L
S
L
Pin24 Input (50mV
15
F11 is multiplied by Gain (0dB = 250mV)
Pin24 Input (100mV
f15
Pin21 Input (150mV
16
F11 is multiplied by Gain (0dB = 250mV)
Pin21 Input (100mV
f16
opr
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 – 30 mA
, 4MHz) 13 – 16 dB
P–P
P–P
) Pin17 3.5V
P–P
), Pin17 3.5V 7 – – MHz
P–P
), Pin17 3.5V
P–P
), Pin17 3.5V 7 – – MHz
P–P
–15 – –1 1.5 dB
–5 – –0.5 dB
2.5 – – dB
2.5 – – dB
6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
200mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Difference Det. Amp. Gain A G
Difference Det. Amp. Gain B G
Pin14 Input (100mV
11–1
Pin13 Input (100mV
11–2
Note 1. Operating Supply Voltage Range: V
CC(opr)
, 1MHz) 13.5 – 16.5 dB
P–P
, 1MHz) 12 – 15 dB
P–P
= 4.5V to 5.5V
Electrical Characteristics (Cont’d): (VCC = 5V, TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Differential + Mix Amp Gain G
Mix Amp. Ratio G
Line Noise Canceler Switch
Changeover Level Difference
Line Noise Canceler Switch
Crosstalk
Line Noise Canceler Limiter Gain G
Line Noise Canceler Cerrlative
Det. Sensitivity ON
Line Noise Canceler Cerrlative
Det. Sensitivity OFF (Hysteresis)
Picture Gain Control G
Picture Control Frequency
Characteristics A
Picture Control Frequency
Characteristics B
Du
CT
S
DS
f
1–1
f
1–2
4–1
Pin12 Input (500mV
4–2
Pin27 Control Pulse –5 – 5 mV
4
500mV
4
Pin10 & Pin12
Pin9 Input (40mV
7
Pin9 Input (4MHz), 0dB = 60mV
6
Pin9 Input (4MHz), 0dB = 60mV
6
Pin3 Input (250mV
1
Ratio of Pin2 0V and 2.5V
Pin3 Input (250mV
Pin3 Input (250mV
Ratio of Pin2 5V and 2.5V
Note 1. Operating Supply Voltage Range: V
, 1MHz) –5.5 – –2.5 dB
P–P
, 1MHz Pin4 Output Ratio of
P–P
, 1MHz) 15.5 – 19.0 dB
P–P
, 1MHz), Output
P–P
, 1MHz) – – –3 dB
P–P
, 1MHz), Output
P–P
CC(opr)
= 4.5V to 5.5V
P–P
P–P
7 – 10 dB
– – –40 dB
1.5 – 4.5 dB
–4 – –0.1 dB
–1.5 – 0.5 dB
5 – – dB
Note 2. Pin8 shall be always used in connection with Pin23
Note 3. Power supply to be supplied to the variable resistor added to Pin2 and Pin17 shall be used
the same as that supplied to this integrated circuit.
Note 4. Since deterioration or destroy of characteristics due to flow of overcurrent caused by reverse
current, careful should be taken to handling.
Pin Connection Diagram
Video Output
Picture Control
De–Emphasis
Peaking
Extension
Relative Detecting Pulse Output
VCC (Record)
Line N.C. LIM Input
Diff Signal Input
Diff Signal Output
Limited Signal Input
Video Input
Video (1H DL) Input
1
2
3
4
5
6
7Line N.C. LIM Output
8
9
10
11
28
27
26
25
24
23
22
21
20
19
18
12 17
13
14
16
15
DOC Pulse Output
Envelope DET
RF Input
RF Output
1H Delay RF Input
V
CC
Double LIM H.P.F. Input
Double LIM H.P.F. Input
GND
LIM
LIM
DEM Gain Control
DEM Output
DEM (1H DL) Output
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