NTE NTE1637

NTE1637
Integrated Circuit
Dual AF Power Ampilifier, 4.3W
Features:
D Built−in 2 Channels Enabling use in Stereo and Bridge Amplifier Applications.
D Low Switching Distortion at High Frequencies
D Minimum Number of External Parts Required: 9 Pcs. Min. (Stereo/Bridge)
D Small Shock Noise at the Time of Power Supply ON/OFF due to Built−In Muting Circuit
D Good Ripple Rejection due to Built−In Ripple Filter
D Voltage Gain Fixed at 45dB (Bridge: 51dB). VariableVoltage Gain Available with External Resistor Added.
D Easy to Mount on Board and also easy to Design Radiator fin due to use of 14−Pin SIP
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10W
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C
Storage Temperatuere Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
Note 1. Using 100 x 100 x 1.5mm3 Al fin.
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Load Resistance, RL
Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω to 8Ω
Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Ω
Electrical Characteristics: (TA = +25°C, VCC = 12V, f = 1kHz, RL = 4Ω Stereo 8Ω Bridge)
Parameter
Queiscent Current
Voltage Gain
Stereo
Bridge
Symbol
Test Conditions
ICCO
VG
Closed Loop
Min
Typ
Max
Unit
−
45
60
mA
43
45
47
dB
49
51
53
dB
Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 12V, f = 1kHz, RL = 4Ω Stereo 8Ω Bridge)
Parameter
Min
Typ
Max
Unit
−
−
±1
dB
3.6
4.2
−
W
Stereo 8Ω
−
2.5
−
W
Bridge 8Ω
−
9.0
−
W
−
0.3
1.5
%
−
0.5
−
%
21
30
−
kΩ
Rg = 0, Stereo
−
0.3
1.0
mV
Rg = 10kΩ, Stereo
−
0.5
2.0
mV
Rg = 0, Vr = 150mV, Stereo
40
46
−
dB
Rg = 10kΩ, VO = 0dB, Stereo
40
55
−
dB
Voltage Gain Difference
Output Power
Stereo 4Ω
Total Harmonic Distortion
Stereo
Symbol
∆VG
PO
THD
Test Conditions
Stereo
THD = 10%
PO = 250mW
Bridge
Input Resistance
Output Noise Voltage
Ripple Rejection
Channel Separation
ri
VNO
Rr
Sep
Pin Connection Diagram
(Front View)
14
NF 1
13
Input 1
12
Preamp GND
11
DC
10
Input 2
9
NF 2
8
Power Amp GND 2
7
Output 2
6
Bootstrap 2
5
BTL Output
4
VCC
3
Output 1
2
Bootstrap 1
1
Power Amp GND 1
1.456 (37.0)
1.181 (30.0)
.177 (4.5)
.156 (3.95) R
.527
(13.38)
1
14
.100 (2.54)
.815
(20.7)
.015 (0.38)