NTE NTE1708

NTE1708
Integrated Circuit
TV Tuner Band Selector
Description:
This NTE1708 is a tuner band selector integrated circuit in a 9–Lead SIP type package intended for
use in electronic tuning type TV sets. This device outputs supply voltages to the tuner unit according
to 2–input band select signals.
Features:
D 2 Inputs, 4 Outputs
D Decoders of 2 Types Available by Changing–Over C Pin.
D Single–Supply Operation (Output Transistor: PNP Type)
D Low Output Saturation Voltage
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Maximum Applied Voltage, V6, V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –12V
Maximum Load Current
IO6max (f1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20mA
IO1max (f2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35mA
IO7max (f3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20mA
IO2max (f4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35mA
Input Current, IINmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Allowable Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mA
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +65°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Quiescent Current
Symbol
ICCO
Output Saturation Voltage
Test Conditions
Min
Typ
Max
Unit
–
13
18
mA
0
–
0.7
V
Input Threshold Voltage
VTH
0.8
1.5
3.0
V
Output Leakage Current
I6, I7
–
–
50
µA
Note 1. Current flowing into IC: + (no sign)
Note 2. Current flowing out of IC: –
Truth Table:
Input
Control Pin
Output
A (Pin3)
B (Pin4)
C (Pin8)
f1 (Pin6)
f2 (Pin1)
f3 (Pin7)
f4 (Pin2)
H
H
VCC
Z
Z
Z
H
L
H
VCC
Z
Z
H
H
H
L
VCC
Z
H
Z
Z
L
L
VCC
H
Z
H
H
H
H
Open
H
Z
Z
H
L
H
Open
Z
Z
H
H
H
L
Open
Z
H
Z
Z
L
L
Open
H
Z
H
H
Pin Connection Diagram
(Front View)
9 VCC
8 Bootstrap
7 Ripple Filter
6 Ripple Filter
5 Input
4 Negative Feedback
3 Phase Compensation
2 GND
1 Output
.862 (21.89)
.118 (3.0)
.059 (1.5)
.053(1.35)
.177
(4.5)
1
9
.110
(2.8)
.100 (2.54)
.031 (0.78)