NTE1249 Integrated Circuit Balancd Modulator
Description: The NTE1249 is a balancd modulator circuit in a 7-Lead SIP type package designed for use in SSB CB equipment. Features: D Low Operating Voltage D High Carrier Suppression Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Electrical Characteristics: (TA = +25C unless otherwise specified)
Parameter Total Circuit Current Zener Voltage Signal Input Terminal Voltage Carrier Input Terminal Voltage Output Terminal Voltage BM AC Output Voltage Carrier Suppression Symbol Itot V5 - 4 V1 - 4 V3 - 4 V7 - 4 VO (BM) V6 = 9V SC Test Conditions V6 = 12V Min 6.5 - - - - -6 40 Typ 9.5 6.15 3.1 3.4 8.6 -3 50 Max 12.5 - - - - 0 - Unit mA V V V V dBm dB
Pin Connection Diagram (Front View)
7 6 5 4 3 2 1
Modulator Carrier Output VCC DC Source Balance/Modulator Control GND Carrier Input Modulator Level Control Balance Control/Audio Input
.728 (18.5) Max
.118 (3.0)
.248 (6.3 Max .095 (2.42) 1 7 .118 (3.0) Min .100 (2.54) .600 (15.24) .012 (0.32)
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