NTE1688
Integrated Circuit
TV Tuner Bandswitch
Description:
The NTE1688 is an integrated circuit in a 9鈥揕ead SIP type package incorporating TV tuner band-
switch circuits and a 31V power supply circuit.
Features:
D
Tuner Bandswitch Circuit with 31V Voltage Regulator
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Supply Current, I
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14mA
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 620mW
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperatuere Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrical Characteristics:
(T
A
= +25擄C unless otherwise specified)
Parameter
Input Threshold Voltage
Input Threshold Current
Output Saturation Voltage
Pin8 Output Saturation Voltage
Voltage Regulator
Voltage Regulator with Ambient Temperature
Voltage Regulator Voltage for Drift
Symbol
V
t
I
t
V
CE(sat)
V
CE(sat)
V
6鈥?
V
6鈥?
/T
A
鈭哣
6鈥?
Test Conditions
V
CC
= 12V
V
CC
= 12V
V
CC
= 12V, I
0
= 鈥?0mA
V
CC
= 12V, I
8
= 20mA
V
CC
= 12V, I
6
= 10mA
T
A
= 鈥?0擄 to +60擄C
As Per Condition After 5sec
Elapsed with SW ON
Min
1.5
100
鈥?/div>
鈥?/div>
29.5
鈥?.0
鈥?/div>
Typ
鈥?/div>
鈥?/div>
0.3
0.2
31.7
0
鈥?/div>
Max
2.5
500
0.8
0.5
33.5
+1.0
鹵50
Unit
V
碌A(chǔ)
V
V
V
mV/擄C
mV
Input/Output Related (Logic Table)
Input
Pin3
L
H
L
H
Pin4
L
L
H
H
Pin1
V
CC
Open
Open
Open
Pin2
Open
V
CC
Open
Open
Output
Pin7
Open
Open
V
CC
V
CC
Pin8
L
Open
L
Open
Remarks
(Tuning Status)
UHF
VHF鈥揕
VHF鈥揌
鈥?/div>
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