ne5517 ON Semiconductor, ne5517 Datasheet - Page 9

• Manufacturer Part Number: ne5517
• Description: Dual Operational Transconductance Amplifier
• Manufacturer: ON Semiconductor

Stereo Amplifier With Gain Control
a control input. Excellent tracking of typical 0.3 dB is easy
to achieve. With the potentiometer, R
adjusted. For AC-coupled amplifiers, the potentiometer
may be replaced with two 510 W resistors.
Figure 24 shows a stereo amplifier with variable gain via
CARRIER
V
SIGNAL
V
IN2
IN1
V
V
IN1
IN2
V
C
10kW
V
30kW
10kW
10kW
R
OS
R
R
C
IN
IN
P
1k
, the offset can be
1k
Figure 24. Gain-Controlled Stereo Amplifier
1kW
NE5517, NE5517A, AU5517
R
R
P
P
+V
+V
Figure 25. Amplitude Modulator
I
15kW
D
CC
CC
30kW
R
I
ABC
C
15kW
15kW
http://onsemi.com
R
R
D
D
2
15
3
4
14
13
3
4
+
−
NE5517/A
+
−
+
−
NE5517/A
NE5517/A
9
−V
+V
CC
+V
CC
11
6
Modulators
Transconductance Amplifier) is directly proportional to I
the amplification of a signal can be controlled easily. The
output current is the product from transconductance×input
voltage. The circuit is effective up to approximately 200 kHz.
Modulation of 99% is easy to achieve.
CC
11
6
Because the transconductance of an OTA (Operational
I
I
ABC
ABC
1
1
16
12
5
10
R
10kW
R
10kW
L
L
10kW
R
L
7
5.1kW
R
S
8
9
INT
+V
V
V
−V
+V
−V
INT
OUT1
OUT2
CC
CC
CC
CC
R
S
8
V
−V
INT
+V
INT
OUT
CC
CC
ABC
,