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L7583A Datasheet(PDF) 9 Page - Agere Systems |
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L7583A Datasheet(HTML) 9 Page - Agere Systems |
9 / 20 page Lucent Technologies Inc. 9 Data Sheet February 2001 L7583A/B/C/D Line Card Access Switch Electrical Characteristics (continued) Table 12. Additional Electrical Characteristics * Temperature shutdown flag (TSD) will be high during normal operation and low during temperature shutdown state. Zero Cross Current Turn Off The ring access switch (SW8) is designed to turn off on the next zero current crossing after application of the appropriate logic input control. This switch requires a current zero cross to turn off. Switch 8, once on, will remain in the ON state (regardless of logic input) until a current zero cross. Therefore, to ensure proper operation of switch 8, this switch should be connected, via proper impedance, to the ringing generator or some other ac source. Do not attempt to switch pure dc with switch 8. The ringing test access switch, SW6, also has similar characteristics to switch 8 and should also only be used to switch signals with zero current crossings. For a detailed explanation of the operation of switches 6 and 8, please refer to the An Introduction to L758X Series of Line Card Access Switches Application Note. Parameter Test Condition Measure Min Typ Max Unit Digital Input Characteristics: Input Low Voltage —— — — 1.5 V Input High Voltage — — 3.5 — — V Input Leakage Current (high) VDD = 5.5 V, VBAT = –75 V, Vlogicin = 5 V llogicin — — 1 µA Input Leakage Current (low) VDD = 5.5 V, VBAT = –75 V, Vlogicin = 0 V llogicin — — 1 µA Power Requirements: Power Dissipation VDD = 5 V, VBAT = –48 V, idle/talk state or all OFF state, ringing state or access state IDD, IBAT IDD — — 3 6 5 10 mW mW VDD Current VDD = 5 V, idle/talk state or all OFF state, ringing state or access state IDD IDD — — 560 0.750 900 1.9 µA mA VBAT Current VBAT = –48 V, idle/talk state or all OFF state, ringing state or access state IBAT IBAT — — 4 4 10 10 µA µA Digital Input Characteristics: Input Low Voltage — — — — 1.5 V Input High Voltage — — 3.5 — — V Input Leakage Current (high) VDD = 5.5 V, VBAT = –58 V, Vlogicin = 5 V llogicin — — 1 µA Input Leakage Current (low) VDD = 5.5 V, VBAT = –58 V, Vlogicin = 0 V llogicin — — 1 µA Temperature Shutdown Requirements*: Shutdown Activation Temperature — — 110 125 150 °C Shutdown Circuit Hysteresis — — 10 — 25 °C |
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