NTE NTE1667

NTE1667
Integrated Circuit
2 Channel Amp, 2.3W/Ch (4.7W BTL)
Features:
D Has Two Channels that can be used for Either Stereo or Bridge Amplifier
D High Outputs:
2 Channel (2.3W/Ch @ VCC = 9V, RL = 4Ω)
Bridge Amp (4.7W @ VCC = 9V, RL = 8Ω)
D Voltage Gain is Variable by Externally Connected Feedback Resistors:
2 Channel (RNF = 27Ω, VG = 50dB)
Bridge Amp (RNF = 51Ω, VG = 51dB)
D Switching Distortions in Higher Frequencies have been Held Low
D The Built–In Muting Circuit Keeps Noise caused by Turning Power ON and OFF at Low Levels
D The Built–In Ripple Filter Provides Good Ripple Rejection Factors
D Excels in Channel Separation
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Power Supply Voltage, VCCmax
With Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
With No Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Allowable Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4W
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Ambient Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Power Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Load Resistance, RL
2 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 8Ω
Bridge Amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Ω
Electrical Characteristics: (TA = +25°C, VCC = 9V, f = 1kHz, Rg = 600Ω unless otherwise specified
Parameter
Quiescent Current
Voltage Gain
2 Channel
Symbol
ICCO
VG
Test Conditions
Min
Typ
6V
–
35
55
mA
7.5V
–
40
–
mA
RL = 4Ω
48
50
52
dB
RL = 8Ω
49
51
53
dB
–
–
2
dB
RL = 4Ω
1.7
2.3
–
W
RL = 8Ω
–
1.3
–
W
–
4.7
–
W
2 Channel, PO = 250mW, RL = 4Ω
–
0.5
2.0
%
RL = 4Ω
21
30
–
kΩ
Rg = 0
–
0.5
1.3
mV
Rg = 10kΩ
–
0.8
2.5
mV
–
46
–
dB
40
55
–
dB
2 Channel, RL = 4Ω
Closed Loop, RNF = 27Ω, VIN = –51dBm
Bridge Amp
Voltage Gain Imbalance
Power Output
2 Channel
∆VG
PO
2 Channel, RL = 4Ω
THD = 10%
Bridge Amp
Total Harmonic Distortion
Input Resistance
Output Noise Voltage
Ripple Rejection
Channel Separation
THD
ri
VNO
Rr
2 Channel, RL = 4Ω
2 Channel, Rg = 0, VR = 150mV, RL = 4Ω
CH sep 2 Channel, Rg = 10kΩ, vo = 0dBm, RL = 4Ω
Pin Connection Diagram
BTL Output
1
16 VCC
15 Output 1
14 Bootstrap 1
Output 2 2
Bootstrap 2 3
Power Amp GND
4
13 Power Amp GND
Power Amp GND
5
12 Power Amp GND
NF 2 6
11 NF 1
10 Input 1
Input 2 7
DC 8
9
Preamp GND
.202 (5.12)
16
9
1
8
.770 (19.5) Max
.254 (6.45)
.168 (4.26) Max
.100 (2.54)
.141
(3.6)
.700 (17.78)
.138
(3.5)
.300 (7.62)
Max Unit