NTE NTE1043

NTE1043
Integrated Circuit
Audio Amplifier for Tape Recorder
Features:
D No Transformer Required thanks to Complementary Output Circuit
D Excellent Equalizer Characteristics
D Low–Distortion Recording even if Volumeless because of AGC Circuit Wide Dynamic Range
D Wide Supply Voltage Range: VCC ≥ 4V
Absolute Maximum Ratings: TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Pin9 Current (Note 1), I9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Note 1. I9 is the current to flow into Pin9.
Electrical Characteristics: (VCC = 6V, RL = 4Ω, f = 1kHz, TA = +25°C, with output transistors,
unless otherwise specified)
Parameter
Symbol
Quiescent Current
Min
Typ
Max
Unit
10
15
20
mA
(Play)
0.8
1.0
–
W
(Play)
–
85
–
dB
Pout = 100mW
(Play)
–
0.5
1.8
%
Rg = 0
(Play)
–
17
30
mV
(Play)
10
20
–
kΩ
10
35
–
kΩ
IO
Output Power
POmax
Voltage Gain
Gv
Total Harmonic Distortion
Output Noise Voltage
Input Resistance
Test Conditions
THD
Vn
Preamp
THD = 10%
Rin
Drive Amp
AGC Ratio
Ratio AGC Vin = –70dBm → –30dBm
–
30
–
dB
AGC Total Harminic Distortion
THD AGC Vin = –30dBm
(Rec)
–
1
–
%
(Play)
4
–
–
V
Minimum Operating Voltage
VCCmin
Pin Connection Diagram
AF Input
1
14 Bypass
Record/Playback Circuit
2
13 GND
Record/Playback Circuit
3
12 Bypass
GND
4
11 AF Driver Input
Record/Playback Circuit
5
10 VCC
Record/Playback Circuit
6
9
AF Output
Feedback Circuit
7
8
GND
14
8
1
7
.785 (19.95)
Max
.300 (7.62)
.200 (5.08)
Max
.100 (2.45)
.600 (15.24)
.099 (2.5) Min