NTE1801 Datasheet, PDF (2/3 Pages) NTE Electronics – Integrated Circuit TV dbx Noise Reduction System

Operating Characteristics: (T_A = +25°C, V_CC = 12V, 0dB = 100mV_rms unless otherwise specified)
Parameter
Symbol
Test Conditions
Notes Min Typ Max Unit
Circuit Current
I_CC No Signal
Output Voltage
V_O1 f = 300Hz, V_IN = +10dB
V_O2 f = 300Hz, V_IN = 0dB
V_O3 f = 300Hz, V_IN = –20dB
V_O4 f = 8kHz, V_IN = +17dB
V_O5 f = 8kHz, V_IN = +7dB
V_O6 f = 8kHz, V_IN = –3dB
V_O7 f = 1kHz, V_IN = 215mV
Maximum Output Voltage V_OM f = 1kHz, THD = 1%,
(400 to 300kHz using BPF)
– 8.0 12.5 17.0 mA
(L–R) +17 +20 +23 dB
(L–R) –3 0 +3 dB
(L–R) –43 –40 –37 dB
(L–R) +12.1 +15.1 +18.1 dB
(L–R) –14.6 –11.6 –8.6 dB
(L–R) –43.6 –40.6 –37.6 dB
(L+R) –0.5 0 +0.5 dB
(L–R) 4.0 8.6 – V_P–P
Total Harmonic Distortion THD1 V_O = 0dB, f = 1kHz,
(400 to 300kHz using BPF)
(L–R) – 0.1 0.5 %
THD2 V_O = 215mV, f = 1kHz,
(400 to 300kHz using BPF)
(L+R) – 0.1 0.3 %
Output Noise Voltage
NL1 R_g = 0, 400 to 30kHz using BPF
NL2
(L–R) – –96 –90 dBV
(L+R) – –90 –70 dBV
Reference Voltage
V_ref V_CC = 12V
– 5.8 6.0 6.2 V
Caution: Static Electricity can impair the performance of this device.
Pin Connection Diagram
GND 1
Non–Invert Input (Amp 1) ₂
Invert Input (Amp 1) ³
Preamp Output ⁴
Buffer Input 5
Buffer Output 6
RMS Detector 1 Input 7
Capacitor ⁸
RMS Detector 2 Input ⁹
Capacitor ¹⁰
Resistor Adjust ₁₁
Non–Invert Input (Amp 5) ₁₂
Invert Input (Amp 5) 13
V_CC 14
28 Reference Voltage
27 Capacitor
26 _{Buffer Input}
25 Buffer Output
24 VCA1 Input
23 VCA1 Adjust
22 N.C.
21 N.C.
20 Input (Amp 3)
19 Output (Amp 3)
18 VCA2 Input
17 Input (Amp 4)
16 L–R/SAP Output
15 L+R Output