(Hong Kong)
Product Summary
The AM79R241JC in combination with an ISLAC device, implements the telephone line interface function. This enables the design of a low cost, high performance, fully software programmable line interface for multiple country applications worldwide. All AC, DC, and signaling parameters are fully programmable via microprocessor or GCI interfaces on the ISLAC device. Additionally, the AM79R241JC device has integrated self-test and line-test capabilities to resolve faults to the line or line circuit. The integrated test capability is crucial for remote applications where dedicated test hardware is not cost effective.
Parametrics
AM79R241JC absolute maximum ratings: (1)Storage Temperature: –55 to +150℃; (2)Ambient temperature, under bias: –40 to +85℃; (3)Humidity: TBD; (4)VCC with respect to GND: –0.4 to +7 V; (5)VBH, VBL with respect to GND2: +0.4 to –85 V; (6)VBP with respect to GND: –0.4 to +85 V; (7)VBP with respect to VBH: 150 V; (8)BGND with respect to GND: –3 to +3V; (9)Voltage on R1 relay outputs: +7 V; (10)SA SB continuous: 5 mA; (11)Current through AD or BD: ± 150 mA; (12)P1, P2, P3, LD to GND: –0.4 to VCC + 0.4 V; (13)ESD Immunity (Human Body Model): 1500 V min.
Features
AM79R241JC features: (1)Monitor of two-wire interface voltages and currents supports; (2)Supports internal and external ringing; (3)+5 V and battery supplies; (4)Dual battery operation for system power saving; (5)Compatible with inexpensive protection networks; (6)Tip-open state supports ground start signaling; (7)Integrated test load switches/relay drivers.
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