NTE1859 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit dbx TV Noise Reduction Integrated Circuit

NTE1859
Integrated Circuit
dbx TV Noise Reduction Integrated Circuit
Description:
The NTE1859 is an integrated circuit designed for the dbx–TV noise reduction decode circuit for multi-
channel TV sound systems. This device contains a voltage controlled amplifier, a variable de–empha-
sis circuit with new configuration and RMS detectors with completely integrated active band pass fil-
ters, and offers the complete dbx–TV noise reduction decoder only with a few external components.
Features:
D Integrated Band Pass Filters using Active Filtering Technique and Thin Film Structure with
High Capacitance
D Variable De–emphasis Circuit with New Circuit Configuration
D Minimum Number of External Components
D Wide Operation Voltage Range: 4.7V to 16V
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Power Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17V
Allowable Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715mW
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Recommended Operating Voltage:
Power Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 15V
Electrical Characteristics: (T_A = +25°C, V_CC = +9V Reference Level: 0dB = –5dBm (436mVrms)
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Consumption Current
Decode Characteristics
I_CC
V_od–1
V_od–2
V_od–3
V_od–4
V_od–5
V_od–6
V_od–7
V_od–8
V_od–9
No Signal
V_i = –5dB, f = 300Hz
V_i = –15dB, f = 300Hz
V_i = –30dB, f = 300Hz
V_i = 0dB, f = 1kHz
V_i = –10dB, f = 1kHz
V_i = –20dB, f = 1kHz
V_i = 0dB, f = 8kHz
V_i = –10dB, f = 8kHz
V_i = –20dB, f = 8kHz
4.0 5.0 6.3 mA
5.5 7.0 8.5 dB
–14.5 –13.0 –11.5 dB
–44.5 –43.0 –41.5 dB
1.3 3.3 5.3 dB
–19.4 –17.4 –15.4 dB
–39.6 –37.6 –35.6 dB
–4.3 –1.8 0.7 dB
–30.9 –28.4 –25.9 dB
–45.2 –42.7 –40.2 dB