NTE NTE1700 Integrated circuit 2, 4, & 6 hour auto discriminator for vcr Datasheet

NTE1700
Integrated Circuit
2, 4, & 6 Hour Auto Discriminator for VCR
Description:
The NTE1700 is an integrated circuit in an 18–Lead DIP type package designed for 2Hr/4Hr/6Hr automatic selection in video cassette recorders.
Features:
D The Functions Consist of:
Capstan FG Frequency Divider
Monostable Mulitvibrator
Sample & Hold Circuit
D Supply Voltage Either 9V or 12V
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V
Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics: (VCC = V14–1 = 12V, TA = +25°C ±2°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
I14
24
–
40
mA
Input Blind Level
V2
–
–
150
mVP–P
Playback Control Amp Sensitivity
S2
350
–
–
mVP–P
X9 Select Sensitivity
S3
SW. A to 1
3.3
–
–
V
X2 Select Sensitivity
S4–1
SW. A to 2
5.5
–
–
V
1/2 Slow Select Sensitivity
S4–2
SW. A to 3
–
–
1.45
V
Triangular Wave Reference Voltage
V7
V6–1 = 0, from Pin7 30kΩ to GND
2.9
–
3.6
V
Pause “L” Voltage
V11
V5–1 = 7V, V10–1 = 5.5V
3.3
–
4.1
V
SW. to 1
1.85
–
2.15
V
VO(C–11) SW. to 3
3.25
–
3.80
V
6.25
–
7.15
V
S/H Output Voltage
VOL11
VOH11
SW. to 2
Note 1. Operating Supply Voltage: VCC(opr) = 8.5V to 12.5V
Electrical Characteristics (Cont’d): (VCC = V14–1 = 12V, TA = +25°C ±2°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
2H Select Sensitivity
S12–1
V13–1 = 3.3V, SW. to 1
5.5
–
–
V
4H Select Sensitivity
S12–2
V13–1 = 3.3V, SW. to 2
2.4
–
3.8
V
6H Select Sensitivity
S12–3
V13–1 = 3.3V, SW. to 3
–
–
1.45
V
3.3
–
–
V
Record Select Sensitivity
S13
A Output “H” Voltage
V15H
I15–1 = –3mA, V12–1 = 1.45V, V13–1 = 3.3V
10
–
–
V
A Output “L” Voltage
V15L
I15–1 = 5mA, V12–1 = 5.5V, V13–1 = 3.3V
–
–
0.55
V
B Output “H” Voltage
V16H
I16–1 = –3mA, V12–1 = 1.45V, V13–1 = 3.3V
10
–
–
V
B Output “L” Voltage
V16L
I16–1 = 5mA, V12–1 = 5.5V, V13–1 = 3.3V
–
–
0.55
V
Muting Output “H” Voltage
V18H
5.2
–
–
V
Muting Output “L” Voltage
V18L
–
–
0.2
V
A Schmitting Output “H” Voltage
VOH(A)
5.6
–
6.5
V
A Schmitting Output “L” Voltage
VOL(A)
2.8
–
3.4
V
B Schmitting Output “H” Voltage
VOH(B)
4.15
–
4.8
V
B Schmitting Output “L” Voltage
VOL(B)
2.8
–
3.4
V
Note 1. Operating Supply Voltage: VCC(opr) = 8.5V to 12.5V
Pin Connection Diagram
GND 1
PB Control Signal Input 2
X9 Select 3
X2, Normal, 1/2 Select 4
Sample Pulse 5
Triangle Wave C 6
Triangle Wave R 7
18 Muting Output
17 Muting C, R
16 B Output
15 A Output
14 VCC
13 Rec/PB Select
12 2/4/6 Hour Select
Sample Hold 8
11 L.P.F.
Signal Detect 9
10 Pause L
18
10
1
9
.870 (22.1) Max
.250 (6.35)
.150
(3.8)
.100 (2.54)
.800 (20.3)
.125 (3.17) Min
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