NTE NTE1667 Datasheet
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 @ V
Bridge Amp (4.7W @ V
D Voltage Gain is Variable by Externally Connected Feedback Resistors:
2 Channel (R
Bridge Amp (R
= 27Ω, VG = 50dB)
NF
= 51Ω, VG = 51dB)
NF
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
= 9V, RL = 4Ω)
CC
= 9V, RL = 8Ω)
CC
Absolute Maximum Ratings:
Maximum Power Supply Voltage, V
(TA = +25°C unless otherwise specified)
max
CC
With Signals 11V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With No Signal 15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation, P
max 4W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D
Operating Ambient Temperature Range, T
Storage Ambient Temperature Range, T
stg
Recommended Operating Conditions:
Recommended Power Supply Voltage, V
Load Resistance, R
L
2 Channel 4 to 8Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bridge Amp 8Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
opr
(TA = +25°C unless otherwise specified)
CC
–20° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (TA = +25°C, VCC = 9V, f = 1kHz, Rg = 600Ω unless otherwise specified
Parameter Symbol Test Conditions Min Typ Max Unit
Quiescent Current I
CCO
2 Channel, RL = 4Ω 6V – 35 55 mA
7.5V – 40 – mA
Voltage Gain
2 Channel
VG Closed Loop, RNF = 27Ω, VIN = –51dBm RL = 4Ω 48 50 52 dB
Bridge Amp RL = 8Ω 49 51 53 dB
Voltage Gain Imbalance ∆VG 2 Channel, RL = 4Ω – – 2 dB
Power Output
2 Channel
P
THD = 10% RL = 4Ω 1.7 2.3 – W
O
RL = 8Ω – 1.3 – W
Bridge Amp – 4.7 – W
Total Harmonic Distortion THD 2 Channel, PO = 250mW, RL = 4Ω – 0.5 2.0 %
Input Resistance r
Output Noise Voltage V
RL = 4Ω 21 30 – kΩ
i
2 Channel, RL = 4Ω Rg = 0 – 0.5 1.3 mV
NO
Rg = 10kΩ – 0.8 2.5 mV
Ripple Rejection R
2 Channel, Rg = 0, VR = 150mV, RL = 4Ω – 46 – dB
r
Channel Separation CH sep 2 Channel, Rg = 10kΩ, vo = 0dBm, RL = 4Ω 40 55 – dB
Pin Connection Diagram
BTL Output
Output 2
Bootstrap 2
Power Amp GND
Power Amp GND
NF 2
Input 2
DC
16 9
18
1
2
3
4
5
6
7
8
.770 (19.5) Max
16
15
14
13
12
11
10
9
.202 (5.12)
V
CC
Output 1
Bootstrap 1
Power Amp GND
Power Amp GND
NF 1
Input 1
Preamp GND
.254 (6.45)
.168 (4.26) Max
.100 (2.54)
.700 (17.78)
.141
(3.6)
.138
(3.5)
.300 (7.62)
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