
NTE1837
Integrated Circuit
TV Tuner Controller
Description:
The NTE1837 is a tuner controller integrated circuit in a 16–Lead DIP type package containing functions
such as band switch, inverter, and low–pass filter. This device can be used as a frequency synthesizer
or a voltage synthesizer, depending on the external application circuit.
Functions:
Band Switch (Equivalent to the NTE1658: Refer to the Truth Table)
Inverter
Low–Pass Filter (Voltage Follower, Operational Amplifier)
Features:
2–Input, 5–Output Band Switch
Band Switch (NTE1658) Available by Changing Over C Pin
High Maximum Output Current, Low Saturation Voltage
Meet CATV Tuner Requirements
Frequency Synthesizer or Voltage Synthesizer Application depending on Inverter and
Operational Amplifier Connections
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Band Switch
V
CC1
Maximum Supply Voltage, V
16
max
V
CC2
Maximum Supply Current, I
1
max
Maximum Load Current
I
12
, I
13
max (I
1
= 6mA)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
14
, I
15
max (V
CC1
= 12V)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
11
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum AB Input Current, I
2
, I
3
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Applied Voltage (SW), V
11
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverter, Operation Amplifier
V
CC3
Maximum Supply Voltage, V
6
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CC3
Maximum Supply Current, I
6
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Applied Voltage, V
8
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Load Current, I
8
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Input Voltage, V
7
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Input Current, I
7
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Input Voltage, V
9
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common to 1, 2
Allowable Power Dissipation (T
A
≤
+65
°
C), P
d
max
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18V
10mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–60mA
–60mA
25mA
2mA
35V
35V
5mA
35V
5mA
8V
1mA
V
CC
–1V
600mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20
°
to +65
°
C
–55
°
to +125
°
C