NTE7119
Integrated Circuit
22W BTL (2 x 11W) Stereo Power Amplifier
Description:
The NTE7119 integrated circuit is a classB dual output amplifier in a 9Lead SIP type package de-
signed primarily for use in car radio applications. This device contains two identical amplifiers with
differential input stages. The gain of each amplifier is fixed at 40dB.
Features:
D
Stereo or BTL Application
D
Few External Components for BTL
D
High Output Power
D
Low Offset Voltage at Output
D
Fixed Gain
D
Good Ripple Rejection
D
Mute/Standby Switch
D
Load Dump Protection
D
Thermally Protected
D
Reverse Polarity Safe
D
Ability to Handle High Energy on Outputs
D
No SwitchON/OFF Pop
D
Low Thermal Resistance
D
Short Circuit Protected
Absolute Maximum Ratings:
Supply Voltage, V
P
Operatring
18V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NonOperating
30V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Dump Protected (during 50ms, t
r
2.5ms)
45V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC and DC ShortCircuit Safe Voltage, V
PSC
18V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity, V
PR
6V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Energy Handling Capability at Outputs (V
P
= 0V)
200mJ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NonRepetitive Peak Output Current, I
OSM
6A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repetitive Peak Output Current, I
ORM
4A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Power Dissipation, P
tot
25W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crystal Temperature, T
C
+150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
65
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics: (V
P
= 14.4V, T
A
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply
Supply Voltage Range
V
P
Note 1
6.0
14.4
18.0
V
Total Quiescent Current
I
tot
40
80
mA
DC Output Voltage
V
O
Note 2
6.95
V
DC Output Offset Voltage
|
V
46
|
250
mV
Mute/Standby Switch
SwitchON Voltage Level
V
ON
8.5
V
Mute Condition
V
mute
3.3
6.4
V
Output Signal in Mute Position
V
O
V
I
= 1V (max), f = 20Hz to 15kHz
20
mV
DC Output Offset Voltage
|
V
46
|
250
mV
Standby Condition
V
sb
0
2
V
DC Current in Standby Condition
I
sb
100
A
SwitchON Current
I
sw
12
40
A
Note 1. The circuit is DC adjusted at V
P
= 6V to 18V and AC operating at V
P
= 8.5V to 18V.
Note 2. At 18V < V
P
< 30V the DC output voltage
V
P
/2.
AC Characteristics: (V
P
= 14.4V, R
L
= 4
, f = 1kHz, T
A
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Stereo Application
Output Power
P
O
THD = 0.5%, Note 3
4
5
W
THD = 10%, Note 3
5.5
6.0
W
THD = 0.5%, R
L
= 2
, Note 3
7.5
8.5
W
THD = 10%, R
L
= 2
, Note 3
10
11
W
Total Harmonic Distortion
THD
P
O
= 1W
0.1
%
Low Frequency RollOff
f
L
3dB, Note 4
45
Hz
High Frequency RollOff
f
H
1dB, Note 4
20
kHz
Closed Loop Voltage Gain
G
V
39
40
41
dB
Supply Voltage Ripple Rejection
ON
Mute
Standby
RR
Note 5, Note 6
Note 5, Note 7
Note 5, Note 6, Note 7
Note 5, Note 6, Note 7
40
45
45
80
dB
dB
dB
dB
Input Impedance
|Z
i
|
50
60
75
k
Noise Output Voltage (RMS Value)
ON
Mute
V
no(rms)
R
S
= 0
, Note 8
R
S
= 10k
, Note 8
Note 9
150
250
120
500
V
V
V
Channel Separation
R
S
= 10k
40
dB
Channel Unbalance
|
G
V
|
0.1
1
dB
Note 3. Output power is measured directly at the output pins of the IC.
Note 4. Frequency response externally fixed.
Note 5. Ripple rejection measured at the output with a source impedance of 0
(maximum ripple
amplitude of 2V)
Note 6. Frequency f = 100Hz.
Note 7. Frequency between 1kHz and 10kHz.
Note 8. Noise voltage measured in a bandwidth of 20Hz to 20kHz.
Note 9. Noise output voltage independent of R
S
(V
I
= 0V).
AC Characteristics: (V
P
= 14.4V, R
L
= 4
, f = 1kHz, T
A
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
BTL Application
Output Power
P
O
THD = 0.5%, Note 3
15
17
W
THD = 10%, Note 3
20
22
W
THD = 0.5%, V
P
= 13.2V, Note 3
13
W
THD = 10%, V
P
= 13.2V, Note 3
17.5
W
Total Harmonic Distortion
THD
P
O
= 1W
0.1
%
Power Bandwidth
B
W
THD = 0.5%, P
O
= 1dB, w.r.t 15W
35 to 15,000
Hz
Low Frequency RollOff
f
L
1dB, Note 4
45
Hz
High Frequency RollOff
f
H
1dB, Note 4
20
kHz
Closed Loop Voltage Gain
G
V
45
46
47
dB
Supply Voltage Ripple Rejection
ON
Mute
Standby
RR
Note 5, Note 6
Note 5, Note 7
Note 5, Note 6, Note 7
Note 5, Note 6, Note 7
34
48
48
80
dB
dB
dB
dB
Input Impedance
|Z
i
|
25
30
38
k
Noise Output Voltage (RMS Value)
ON
Mute
V
no(rms)
R
S
= 0
, Note 8
R
S
= 10k
, Note 8
Note 9
200
350
180
700
V
V
V
Note 3. Output power is measured directly at the output pins of the IC.
Note 4. Frequency response externally fixed.
Note 5. Ripple rejection measured at the output with a source impedance of 0
(maximum ripple
amplitude of 2V)
Note 6. Frequency f = 100Hz.
Note 7. Frequency between 1kHz and 10kHz.
Note 8. Noise voltage measured in a bandwidth of 20Hz to 20kHz.
Note 9. Noise output voltage independent of R
S
(V
I
= 0V).
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