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NTE7211 & NTE7212
Integrated Circuit
Class AB Audio Power Amplifier, 2 Channel
Description:
The NTE7211 and NTE7212 are audio power amplifier hybrid integrated circuits in a 15Lead SIP
type package consisting of optimallydesigned discrete component power amplifier circuits.
Features:
D Miniature Package
D Available in 2 Different Outputs (THD = 0.4%, f = 20Hz to 20kHz):
50W/Ch (NTE7211)
80W/Ch (NTE7212)
D Output Load Impedance: RL = 6Ω
D Allowable Load Shorted Time: 0.3 seconds
D Supports the Use of Standby, Muting, and Load Shorting Protection Circuits
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage (No Signal), VCCmax
NTE7211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±54V
NTE7212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±65V
Maximum Supply
NTE7211 .
Voltage
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.(R. .L.=.
6Ω),
.....
V. .C.C.m. .a.x.
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±47V
NTE7212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±57V
Recommended Supply Voltage (RL = 6Ω), VCC
NTE7211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±32V
NTE7212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±39V
Operating Junction Temperature (Note 1), TJmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating IC Substrate Temperature (Not 1), TCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30° to +125°C
Thermal Resistance, JunctiontoCase (Per Power Transistor), RthJC . . . . . . . . . . . . . . . . . 2.2°C/W
Allowable Load Shorted Time (RL = 6Ω, f = 50Hz), ts
NTE7211
NTE7212
((VVCCCC
=
=
±32V,
±39V,
PPOO
=
=
50W)
80W)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3s
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3s
Note 1. Both the TJmax and the TCmax conditions must be met.
Free Datasheet http://www.Datasheet4U.com

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Operating Characteristics: (NToAte= 2+2u5n°leCs,sRoLth=e6rwΩis(enosnpeicnidfiuecdt)ive load), Rg = 600Ω, VG = 30dB,
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output Power
NTE7211
PO VCC = ±32V f = 20Hz to 20kHz, THD = 0.4% 50 W
f = 1kHz, THD = 10%
80 W
NTE7212
VCC = ±39V f = 20Hz to 20kHz, THD = 0.4% 80 W
f = 1kHz, THD = 10%
120 W
Total Harmonic Distortion
Frequency Characteristics
Input Impedance
Output Noise Voltage
Quiescent Current
Neutral Voltage
THD
fL, fH
ri
VNO
ICCO
VN
VVCGC==3±03d2BV,
f = 20Hz to 20kHz, PO = 1W
f = kkHz, PO = 5W
VCC = ±32V, PO = 1W, +0 3dB
VCC = ±32V, f = 1kHz, PO = 1W
VCC = ±39V, Rg = 2.2kΩ, Note 3
VCC = ±39V
VCC = ±39V
− − 0.4 %
0.01 %
20 to 50k Hz
55 kΩ
− − 1.2 mVrms
10 40 80 mA
70 0 +70 mV
Note 2. Unless otherwise noted, use a constantvoltage supply for the power supply used during
inspection.
Note 3. The output noise voltage values shown are peak values read with a VTM. However, an AC
stabilized (50Hz) power supply should be used to minimize the influence of AC primary side
flicker noise on the reading.
Pin Connection Diagram
(Front View)
15 Ch 2 Input
14 Ch 2 NF
13 Sub GND
12 Pre VCC
11 Ch 2 VE
10 Ch 2 +VE
9 VCC
8 +VCC
7 Ch 1 VE
6 Ch 1 +VE
5 Bias
4 Pre +VCC
3 No Pin
2 Ch 1 NF
1 Ch 1 Input
Free Datasheet http://www.Datasheet4U.com

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2.331 (59.2)
2.050 (52.0)
1
.142 (3.6)
Dia
(2 Places)
15
.079 (2.0)
1.102 (28.0)
.335 (8.5)
1.220
(31.0)
.827
(21.0)
.197 (5.0)
Free