Sound Preamp. NTE1789 Datasheet

NTE1789 Preamp. Datasheet pdf. Equivalent

Part NTE1789
Description Integrated Circuit TV Sound Preamp
Feature NTE1789 Integrated Circuit TV Sound Preamp, AF Output, Volume Control Description: The NTE1789 is an.
Manufacture NTE
Datasheet
Download NTE1789 Datasheet




NTE1789
NTE1789
Integrated Circuit
TV Sound Preamp, AF Output, Volume Control
Description:
The NTE1789 is an integrated circuit in a 9–Lead SIP type package designed for use in TV sound
output circuit.
Features:
D DC Volume Control System
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V1–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Supply Voltage, V9–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
Circuit Voltage, V3–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 7V
Circuit Voltage, V4–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V1–7 V
Circuit Voltage, V6–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V9–7 V
Peak Circuit Current, I4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10 to +3mA
Peak Circuit Current, I8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 to +1.2mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Electrical Characteristics: (TA = +25°C unless otherwisepsecified)
Parameter
Symbol
Test Conditions
Circuit Current
Circuit Voltage
II
V2–7
V5–7
SW1: 1, SW2: 1
SW1: 2, SW2: 1
SW1: 2, SW2: 1
V6–7 SW1: 2, SW2: 1
V8–7 SW1: 2, SW2: 2
Max. Output Voltage
Voltage Gain
Total Harmonic Distortion
POmax
GV
THD
V4 = 12V, f = 1kHz, THD = 10%
V4 = 12V, Vi = 0.1Vrms, f = 1kHz
V4 = 12V, PO = 1W, f = 1kHz
Max. Attenuation
Att f = 1kHz, Vi = 0.1Vrms, Ratio between
V4 = 12V and V4 = 0V
Output Noise Voltage
Mute Operating Voltage
Vno
V3–7
V4 = 0V, Vi = 0Vrms
f = 1kHz, V4 = 12V, when V8 = 0Vrms
Min Typ Max
7.1 9.5 11.9
– 5.4 –
– 8.5 –
– 8.8 –
– 8.8 –
2.0 2.3 –
28.5 30.5 32.5
– 0.8 1.2
– –95 –85
Unit
mA
V
V
V
V
W
dB
%
dB
– 0.6 1.0 mVrms
2.45 2.65 2.85 V



NTE1789
Pin Connection Diagram
(Front View)
9 VCC 2 (18V Typ)
8 Sound Output
7 GND
6 Feedback
5 Filter
4 Volume Control
3 Mute
2 Sound Input
1 VCC 1 (12V Typ)
.890 (22.6)
.728 (18.5)
.591 (15.0)
.059
(1.5)
1
.100 (2.54)
.067 (1.72)
.150 (3.8)
.328
.229 (8.33)
(5.82)
.250
(6.35)
9
.281
(7.14)







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