STMicroelectronics L3281
The L3281 is an electronic speech circuit developed to replace hybrid circuits in telephone sets that can be operated in parallel with other phones.| Part No. | L3281 |
|---|---|
| Datasheet | L3281 Download |
| Manufacturer |  STMicroelectronics |
| Description | LOW VOLTAGE TELEPHONE SPEECH CIRCUITS |
| Buy | Stock & Price |
DESCRIPTION
BLOCK DIAGRAM ORDERING NUMBERS: L3281AB L3281AD1 June 1993 1/10 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. L3281 PIN CONNECTION (top view)ABSOLUTE MAXIMUM RATINGS
Symbol VL IL Ptot Top Tj Parameter Line Voltage (3 ms pulse) Line Current Total Power Dissipation, Tamb = 55°C Operating Temperature Junction Temperature 1.0 – 20 to 55 – 65 to 150 Value DIP-14 15 150 0.6 SO-14 Unit V mA W °C °C THERMAL DATA Symbol Rth j-amb Parameter Thermal Resistance Junction Ambient Max Value DIP-14 90 SO-14 130 Unit °C/W 2/10 L3281 TEST CIRCUITS Figure 1. Figure 2. Figure 3. 3/10 L3281ELECTRICAL CHARACTERISTICS
IL = 20 to 100mA; R4 =( 51Ω // diode) + 33Ω; T = 25°C; f = 1kHz; Unless Otherwise Specified Symbol Vl Parameter Line Voltage IL IL IL IL Test Condition = 6.5mA = 20mA = 50mA = 80mA 50 Vmi = 10mV; IL = 20mA Vmi = 10mV; IL = 70mA Vso = 700mV; IL = 20mA Vmi = 0V; IL = 50mA Vmi = 10mV IL = 20mA;...
