|
|
Part: NTE1744
Category:
Description: NTE1744, Integrated Circuit Dual Dbxii Noise Reduction System
Company: NTE Electronics, Inc.
Datasheet: Download NTE1744 datasheet File size : 27 kB
Request For quote: Find where to buy NTE1744
Datasheet text preview:
NTE1744 Integrated Circuit Dual dbxII Noise Reduction System
Description: The NTE1744 is an integrated circuit in a 22Lead DIP type package designed for use in dbxII noise reduction circuits for stereo applications. This device can be used for U.S. sound multiplex TV applications and low voltage operation (1.8V) allows the NTE1744 to be used in batteryoperated HiFi equipment. Features: D Wide Dynamic Range: 110dB D Low Operating Voltage: VCCmin = 1.8V D Minimum Number of External Components D Adjustment: Only One D Low Power Consumption D Wide Operating Voltage Range: VCC = 1.8V to 14V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Power Dissipation (TA = +75°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mW Operating Ambient Temperature range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55° to +150°C Electrical Characteristics: (TA = +25°C, VCC = 3V unless otherwise specified)
Parameter Input/Output Characteristics ENCODE Mode Symbol VOE1 VOE2 VOE3 DECODE Mode VOD1 VOD2 VOD3 Test Conditions VIN = +20dB, f = 1kHz VIN = 0dB, f = 1kHz VIN = 40dB, f = 1kHz VIN = +10dB, f = 1kHz VIN = 0dB, f = 1kHz VIN = 20dB, f = 1kHz Min +7.5 2.0 23 +17 2.0 44 Typ Max Unit dB dB dB dB dB dB
+10.0 +12.5 0 20 +20 0 40 +2.0 17 +23 +2.0 36
Note 1. 0dB = 20mV = 34dBV
Electrical Characteristics (Cont'd): (TA = +25°C, VCC = 3V unless otherwise specified)
Parameter Maximum Output Voltage ENCODE Mode DECODE Mode Total Harminic Distortion (DECODE Mode) Noise Output Voltage ENCODE Mode DECODE Mode Difference Between Channels ENCODE Mode DECODE Mode Crosstalk (ENCODE Mode) Ripple Rejection Ratio (DECODE Mode) Quiescent Current Input/Output Characteristics dbx OFF Mode Total Harmonic Distortion dbx OFF Mode Output Noise Voltage (dbx OFF Mode) Symbol VOME VOMD THDD VO = +14dB, f = 1kHz Test Conditions THD = 1%, f = 1kHz Min Typ Max Unit 80 200 150 450 0.15 0.3 mV mV %
VNOE VNOD CDE CDD CT SVRR ICC VOFF
Input Short, Aweight
100 3 0 0 60 55 1.8 20 0.3 10
200 6 1.2 1.2 3.2 23 1.0 20
µV µV dB
VIN = 0dB, f = 1kHz Measuring Channel: Short Another Channel: Output 200mV, f = 1kHz f = 60Hz, V = 100mV, Input Short VCC = 3V, Input Short VIN = +20dB, f = 1kHz
50 40 17
dB dB mA dB % µV
THDOFF VIN = +20dB, f = 1kHz VnOFF Input Short, Aweight
Note 1. 0dB = 20mV = 34dBV
Pin Connection Diagram
Adjust 1 GND 2 RMS Input A 3 Timing A 4 CCA Input A 5 CAP1 A 6 CAP2 A 7 VOUT A 8 ON/OFF A 9 NI 10 Decode 11
22 VCC 21 N.C. 20 RMS Input B 19 Timing B 18 CCA Input B 17 CAP1 B 16 CAP2 B 15 VOUT B 14 ON/OFF B 13 I Time 12 Encode
22
12 .410 (11.41)
1
11
1.300 (33.0) .216 (5.5)
.400 (10.16)
.100 (2.54) 1.000 (25.4)
.110 (2.79)
Others parts begin by nt
NT-1 NT-2 NT-3 NT-4 NT-5 NT-6 NT-7 NT-8 NT-9 NT-10 NT-11 NT-12 NT-13 NT-14 NT-15 NT-16 NT-17 NT-18 NT-19 NT-20 NT-21
|
|
|
