
NTE826
Integrated Circuit
TV Sound System, 2W
Description:
The NTE826 2W sound IF circuit is designed for television and related applications. The circuit is
comprised of 2 independent functions: a sound IF and an audio power amplifier. The sound IF portion
of the circuit utilizes circuitry similar to the NTE712. An improved volume control circuit is included,
however, so that recovered audio is a linear function of the resistance of the control potentiometer.
Audio power amplification is accomplished with circuitry similar to the popular NTE740A audio power
amplifier, featuring both short circuit and thermal protection.
Features:
Minimum Undistorted Output: 2W
Linear Volume Control: 75dB range
Fixed Voltage Gain in Audio Amplifier
Short Circuit and Thermal Protection
Absolute Maximum Ratings:
Supply Voltage (Pin2), V
CC
Input Current (Pin6), I
MAX
Input Signal Voltage (Between Pin12 and Pin13)
Operating Temperature Range, T
opr
Storage Temperature Range, T
stg
Maximum Junction Temperature, T
J
Lead Temperature (During Soldering, 10sec), T
L
26V
50mA
3V
p–p
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
°
to +70
°
C
–65
°
to +150
°
C
+150
°
C
+300
°
C
Electrical Characteristics:
Parameter
Test Conditions
Min
Typ
Max
Unit
Power Output
V
CC
= 24V, R
L
= 16
, THD = 10%
V
CC
= 16V, R
L
= 8
, THD = 10%
V
CC
= 14V, R
L
= 8
, THD = 10%
V
CC
= 12V, R
L
= 8
, THD = 10%
–
1.3
–
W
–
2.6
–
W
–
1.9
–
W
–
1.3
–
W