NTE NTE1688 Datasheet
NTE1688
Integrated Circuit
TV Tuner Bandswitch
Description:
The NTE1688 is an integrated circuit in a 9–Lead SIP type package incorporating TV tuner bandswitch circuits and a 31V power supply circuit.
Features:
D Tuner Bandswitch Circuit with 31V Voltage Regulator
Absolute Maximum Ratings:
Supply Voltage, V
Supply Current, I
Power Dissipation, P
CC
6
D
Operating Ambient Temperature Range, T
Storage Temperatuere Range, T
Electrical Characteristics:
Parameter Symbol Test Conditions Min Typ Max Unit
Input Threshold Voltage V
Input Threshold Current I
Output Saturation Voltage V
Pin8 Output Saturation Voltage V
Voltage Regulator V
Voltage Regulator with Ambient Temperature V
Voltage Regulator Voltage for Drift ∆V
(TA = +25°C unless otherwise specified)
opr
stg
(TA = +25°C unless otherwise specified)
VCC = 12V 1.5 – 2.5 V
t
VCC = 12V 100 – 500 µA
t
CE(sat)VCC
CE(sat)VCC
6–5
6–5/TATA
6–5
= 12V, I0 = –60mA – 0.3 0.8 V
= 12V, I8 = 20mA – 0.2 0.5 V
VCC = 12V, I6 = 10mA 29.5 31.7 33.5 V
= –20° to +60°C –1.0 0 +1.0 mV/°C
As Per Condition After 5sec
Elapsed with SW ON
Input/Output Related (Logic Table)
Input Output
Pin3 Pin4 Pin1 Pin2 Pin7 Pin8
18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
620mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
– – ±50 mV
Remarks
(Tuning Status)
L L V
H L Open V
L H Open Open V
H H Open Open V
CC
Open Open L UHF
CC
Open Open VHF–L
CC
CC
L VHF–H
Open –
Pin Connection Diagram
(Front View)
9
V
CC
Output 4
8
7
Output 3
6
31.5V Supply Voltage
5
GND
4
Input 2
3
Input 1
2
Output 2
1
Output 1
.929 (23.6) .118 (3.0)
.236
(6.0)
19
.098
(2.5)
.100 (2.54) .118(3.0)
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