NTE15023

Integrated Circuit

dbx TV Noise Reduction Integrated Circuit

Description:

The NTE15023 is an integrated circuit designed for the dbx–TV noise reduction decode circuit for mul-

tichannel TV sound systems. This device contains a voltage controlled amplifier, a variable de–em-

phasis circuit with new configuration and RMS detectors with completely integrated active band pass

filters, 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

17V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

715mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20

° to +75°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55

° to +150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Operating Voltage:

5V to 15V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Consumption Current

No Signal

4.0

5.0

6.3

mA

Decode Characteristics

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