1626

NTE1626
Integrated Circuit
4.2W Dual Audio Power Amplifier
Description:
The NTE1626 is a dual audio power amplifier in a 12−Lead SIP type package designed for use in a
stereo radio cassette. This device has two audio power amplifiers and each of the two provides 4.2W
power at 12V/4Ω.
Features:
D High Output Power:
4.2W/ch (Typ) VCC = 12V, RL = 4Ω
5.0W/ch (Typ) VCC = 12V, RL = 3Ω
2.2W/ch (Typ) VCC = 9V, RL = 4Ω
3.0W/ch (Typ) VCC = 9V, RL = 3Ω
D Wide Operating Voltage Range: VCC = 5 to 16V
D No Shock Noise at Power Supply Switch On & Off
D Soft Clipping Wave Form
D High Ripple Rejection Ratio: R.R.R. = 50dB (Typ)
D Thermal Shutdown Circuit is Built In
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage (No Signal), VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Supply Voltage (Operating), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Allowable Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13W
Operating Temperature Range, Topt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C
Note 1 100 x 100 x 2mm3 Al heat sink
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Supply Voltage
Load Impedance
Symbol
Test Conditions
Min
Typ
Max
Unit
VCC
5
12
16
V
RL
3
4
8
Ω
Electrical Characteristics: (VCC = 12V, RL = 4Ω, f = 1kHz, TA = +25°C, 100 x 100 x 2mm Al Panel
Heat Sink unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Circuit Current
ICC
No Signal
20
45
90
mA
Voltage Gain
AV
PO = 1W
42
45
48
dB
Electrical Characteristics (Cont’d): (VCC = 12V, RL = 4Ω, f = 1kHz, TA = +25°C, 100 x 100 x 2mm Al
Panel Heat Sink unless otherwise specified)
Parameter
Symbol
Output Power
PO
Total Harmonic Distortion
THD
Test Conditions
Min
Typ
Max
Unit
THD = 10% VCC = 9V, RL = 4Ω
1.8
2.2
−
W
THD = 10% VCC = 9V, RL = 3Ω
2.5
3
−
W
THD = 10% VCC = 12V, RL = 4Ω
3.2
4.2
−
W
THD = 10% VCC = 12V, RL = 3Ω
4
5
−
W
PO = 1W
−
0.2
1
%
Output Noise Voltage
NL
RG = 10kΩ
−
0.6
2
mVrms
Cross Talk
CT
PO = 1W, oth. ch. RG = 10kΩ
45
55
−
dB
Ripple Rejection
RR
RG = 0, f = 100Hz, V = 0.3Vrms
40
50
−
dB
Input Impedance
Zin
30
50
−
kΩ
Pin Connection Diagram
(Front View)
12 GND (Output)
11 Output 2
10
9
8
7
6
5
4
3
2
1
VCC
Bootstrap 2
NFB 2
Input 2
Input 1
NFB 1
Filter
Bootstrap 1
Output 1
GND (Input)
1.260 (32.0) Max
.197 (5.0)
Max
.945 (24.0)
.070
(1.78)
R Typ
.590
(14.9)
1
12
.256
(6.5)
.100 (2.54)
.099 (2.5)
.512
(13.0)