Datasheet for Ic-dual 2W Audio PO

Datasheet for Ic-dual 2W Audio PO
NTE7055
Integrated Circuit
Dual Audio Power Amplifier, 2W
Description:
The NTE7055 is a dual audio power amplifier in a 14−Lead DIP type package designed for portable
audio sets.
Features:
D Wide Operating Voltage Range: VCC = 3V to 16V
D High Output Power: PO = 2W at VCC = 12V, RL = 8Ω, THD = 10%
PO = 1.6W at VCC = 9V, RL = 4Ω, THD = 10%
PO = 1.2W at VCC = 9V, RL = 8Ω, THD = 10%
PO = 0.7W at VCC = 6V, RL = 4Ω, THD = 10%
PO = 0.5W at VCC = 6V, RL = 8Ω, THD = 10%
PO = 80mW at VCC = 4.5V, RL = 32Ω, THD = 10%
D High Supply Voltage Rejection: SVR = 45dB
D Low Quiescent Current: ICC = 12mA
D Low Pop Noise at Power ON/OFF
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage (No Signal), VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Supply Voltage (Operating), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Allowable Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C
Note 1. 50 x 50 x 0.035mm copper heat sink on PCB.
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Supply Voltage
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC(16)
RL = 16Ω
3
−
16
V
VCC(8)
RL = 8Ω
3
−
13
V
VCC(4)
RL = 4Ω
3
−
9
V
Load Impedance
RL
4
8
−
Ω
Voltage Gain
GV
34
44
−
dB
Electrical Characteristics: (TA = +25°C, VCC = 9V, Rf = 33Ω, f = 1kHz, RL = 8Ω unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Circuit Current
ICC
No Signal
−
12
25
mA
Voltage Gain
GV1
PO = 0.25W, Rf = 33Ω
41
44
47
dB
GV2
PO = 0.25W, Rf = 120Ω
−
34
−
dB
PO1
VCC = 12V, RL = 8Ω, THD = 10%
−
2.0
−
W
PO2
VCC = 9V, RL = 4Ω, THD = 10%
−
1.6
−
W
PO3
VCC = 9V, RL = 8Ω, THD = 10%
0.9
1.2
−
W
PO4
VCC = 6V, RL = 4Ω, THD = 10%
−
0.7
−
W
PO5
VCC = 6V, RL = 8Ω, THD = 10%
−
0.5
−
W
PO6
VCC = 4.5V, RL = 32Ω, THD = 10%
−
80
−
mW
THD1
PO = 0.5W, Rf = 33Ω
−
0.4
1.6
%
THD2
PO = 0.5W, Rf = 120Ω
−
0.3
−
%
RG = 10kΩ
−
0.9
1.5
mVrms
RG = 0, fripple = 100Hz, Vripple = 0.3Vrms
38
45
−
dB
RG = 0, PO = 0.25W
40
55
−
dB
PO = 0.25W
−2
0
+2
dB
−
5
−
MΩ
Output Power
Total Harmonic Distortion
Output Noise Voltage
NL
Supply Voltage Rejection
Crosstalk
SVR
CT
Channel Balance
Ch. B.
Input Impedance
Zin
Pin Connection Diagram
Filter
1
14
GND
Input 2
2
13
Input 1
NFB 2
3
12
NFB 1
Compensation 2
4
11
Compensation 1
Bootstrap 2
5
10
VCC
Output 2
6
9
Bootstrap 1
GND
7
8
Output 1
Tab/GND
.968 (24.6) Max
.763 (19.4) Max
0.39
(0.99)
Dia
.177 (4.5)
.300 (7.62)
.256 (6.5)
.015
(0.38)
.026 (0.66)
.047 (1.2)
.126 (3.2)
.175 (4.4)
.195 (4.9)
.100 (2.54)
.330
(8.4)
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