7114

NTE7114
Integrated Circuit
Audio Power Amplifier,
Quad 11W (2 x 22W)
Description:
The NTE7114 is an integrated class−B output amplifier in a 17−Lead Staggered SIP type package
designed for use in car radio applications. The circuit contains 4 x 11W single−ended or 2 x 22W
bridge amplifiers.
Features:
D Few External Components
D Flexible in Use: Quad Single−Ended or Stereo BTL
D High Output Power
D Low Offset Voltage at Outputs (Important for BTL)
D Fixed Gain
D Good Ripple Rejection
D Mute/Stand−by Switch
D AC & DC Short−Circuit−Safe to GND and VP
D Load Dump Protection
D Thermally Protected
D Protected Against Electrostatic Discharge
D Low Thermal Resistance
D Capable of Handling High Energy on Output (VP = 0V)
D Identical Inputs (Inverting & Non−Inverting)
Absolute Maximum Ratings:
Supply Voltage, VP
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Non−Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Load Dump Protected (During 50ms, tr ≤ 2.5ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Peak Output Current, IOM
Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A
Non−Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A
Total Power Dissipation, Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60W
AC & DC Short−Circuit−Safe Voltage, VPSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Energy Handling Capability at Outputs (VP = 0V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mJ
Reverse Polarity, VPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
DC Characteristics: (VP = 14.4V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
8.0
14.4
18.0
V
−
80
180
mA
−
8.9
−
V
|∆VO|
−
−
100
nV
Switch−ON Voltage Level
VON
8.5
−
−
V
Mute Condition
Vmute
3.3
−
6.4
V
−
−
2
mV
|∆VO|
−
−
100
mV
Stand−by Condition
Vsb
0
−
2
V
DC Current in Stand−by Condition
Isb
−
−
100
µA
Switch−ON Current
Isw
−
12
40
µA
Supply
Supply Voltage Range
VP
Total Quiescent Current
Itot
DC Output Voltage
VO
DC Output Offset Voltage
Note 1
Note 2
Mute/Stand−by Switch
Output Signal in Mute Position
VO
DC Output Offset Voltage
(Between Pins 6 to 8 & 10 to 12)
VI = 1V (max), f = 1kHz
Note 1. The circuit is DC adjusted at VP = 6V to 18V and AC operating at VP = 8.5V to 18V.
Note 2. At 18V < VP < 30V the DC output voltage ≤ VP/2.
AC Characteristics: (VP = 14.4V, RL = 4Ω, f = 1kHz, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
THD = 0.5%
15
17
−
W
THD = 0.5%, VP = 13.2V
−
12
−
W
THD = 10%
20
22
−
W
THD = 10%, VP = 13.2V
−
17
−
W
−
0.1
−
%
Stereo BTL Application
Output Power
PO
Total Harmonic Distortion
THD
PO = 1W
Power Bandwidth
BW
THD = 0.5%, PO = −1dB, w.r.t = 15W
20 to 15000
Hz
Low Frequency Roll−Off
fL
−1dB, Note 3
−
45
−
Hz
High Frequency Roll−Off
fH
−1dB, Note 3
20
−
−
kHz
Closed Loop Voltage Gain
GV
25
26
27
dB
Supply Voltage Ripple Rejection
ON
RR
48
−
−
dB
Mute
48
−
−
dB
Stand−by
80
−
−
dB
25
30
38
kΩ
Input Impedence
|Zi|
Note 4
Note 3. Frequency response externally fixed.
Note 4. Ripple Rejection measured at the output with source impedence of 0Ω (maximum ripple
amplitude of 2V) and a frequency between 100Hz and 20kHz.
AC Characteristics (Cont’d): (VP = 14.4V, RL = 4Ω, f = 1kHz, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
RS = 0Ω, Note 5
−
70
−
µV
RS = 10kΩ, Note 5
−
100
200
µV
Note5 & Note 6
−
60
−
µV
RS = 10Ω, Note 5
−
70
−
dB
−
−
1
dB
THD = 0.5%, Note 7
4.0
5.0
−
W
THD = 0.5%, RL = 2Ω, Note 7
7.5
8.5
−
W
THD = 10%, Note 7
5.5
6.0
−
W
THD = 10%, RL = 2Ω, Note 7
10.0
11.0
−
W
PO = 1W
−
0.1
−
%
Stereo BTL Application (Cont’d)
Noise Output Voltage (rms)
ON
VNO(rms)
Mute
Channel Separation
α
Channel Unbalance
|∆GV|
Quad Single−Ended Application
Power Output
PO
Total Harmonic Distortion
THD
Low Frequency Roll−Off
fL
−3dB, Note 3
−
45
−
Hz
High Frequency Roll−Off
fH
−1dB, Note 3
20
−
−
kHz
Closed Loop Voltage Gain
GV
19
20
21
kHz
Supply Voltage Ripple Rejection
ON
RR
48
−
−
dB
Mute
48
−
−
dB
Stand−by
80
−
−
dB
50
60
75
kΩ
RS = 0Ω, Note 5
−
50
−
µV
RS = 10kΩ, Note 5
−
70
100
µV
Note5 & Note 6
−
50
−
µV
RS = 10Ω, Note 5
−
70
−
dB
−
−
1
dB
Input Impedence
Noise Output Voltage (rms)
ON
Note 4
|Zi|
VNO(rms)
Mute
Channel Separation
α
Channel Unbalance
|∆GV|
Note 3. Frequency response externally fixed.
Note 4. Ripple Rejection measured at the output with source impedence of 0Ω (maximum ripple
amplitude of 2V) and a frequency between 100Hz and 20kHz.
Note 5. Noise voltage measured in a bandwidth of 20Hz to 20kHz.
Note 6. Noise output voltage independent of RS (VI = 0V).
Note 7. Output power is measured directly at the output pins on the IC.
Pin Connection Diagram
(Front View)
17 (+) Input 2
16 (−) Input 2
15 N.C.
14 Mute/Standby
13 (+) VS 2
12 Output 4
11 GND 2
10 Output 3
9
N.C.
8
Output 2
7
GND 1
6
Output 1
5 (+) VS 1
4
Ripple Rejection
3
Signal GND
2
(−) Input 1
1
(+) Input 1
.961 (24.4) Max
.787 (20.0) Max
.185 (4.7) Max
.134
(3.4)
1
.488
(12.4)
.669
(17.0)
Max
17
.433
(11.0)
Min
.169 (4.3)
.050 (1.27)
.087 (2.2)
.030 (0.75)
.200
(5.08)
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