NTE1800
Integrated Circuit
TV Multiplex Sound Decoder
Description:
The NTE1800 Multiplexed Sound Decoder is a linear integrated circuit in a 30鈥揕ead DIP type package
that incorporates the SAP demodulation and the L, R matrix circuits required to demodulate multi-
plexed sound signals on the US NTSC system.
The NTE1800 also features mode switching to facilitate the use of remote control, and can be interfaced
easily to the NTE1801 dbx Noise Reduction Decoder IC.
Features:
D
Mode switching for remote control
D
Built鈥搃n muting function
D
Pilot cancel circuit
D
8.0 to 13.2V power supply
D
300mV
rms
(MONO) composite signal input voltage
D
30鈥損in plastic shrink DIP
D
Easily interfaced to the NTE1801
Functions:
D
Pilot signal
D
SAP signal
D
Stereo demodulation
D
SAP demodulation
D
Mode switching
D
Stereo and SAP display drivers
D
Pilot canceler
D
On鈥揷hip 4fH V
CO
D
On鈥揷hip 5fH V
CO
Absolute Maximum Ratings:
Power Supply Voltage, V
CC
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Input Signal Voltage, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
p鈥損
Control Signal Voltage, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
p鈥損
Power Dissipation (T
A
鈮?/div>
+70擄C), P
D
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mW
Lamp Driver Current, I
lamp
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Operating Temperature Range, T
opg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Recommended Operating Conditions:
(T
A
= +25擄C unless otherwise specified)
Power Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 13.2V
Composite Signal Voltage, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mV
rms
1
2
3
