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ISL5586FCMZ Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ISL5586FCMZ Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 20 page  FN4924 Rev 2.00 Page 1 of 20 Nov 3, 2004 FN4924 Rev 2.00 Nov 3, 2004 ISL5586 Low Power Ringing SLIC for Home Gateways DATASHEET The ISL5586 is a very low power Ringing Subscriber Interface circuit designed for use with the Broadcom BCM3352 Cable Modem Chip, with on-board voiceband codecs, or other 3.3V voiceband codec devices. The ISL5586 provides on board ringing signal generation up to 95V peak supporting sinusoidal or trapezoidal waveshapes with DC offset. Loop start and ground start trunks are supported, and an open circuit DC voltage of less than 56V is maintained on the subscriber loop in the on-hook condition, in compliance with MTU operation and the safety requirements of UL-1950. Together with the Broadcom BCM3352, the ISL5586 provides resistive and complex two wire impedance matching and transhybrid balancing. Also supported are on- hook transmission of caller id signals, soft and hard polarity reversal and 12/16kHz subscriber pulse metering systems used in Europe and Asia, thereby allowing a low cost, low risk, global product design to be achieved. Related Literature • Evaluation Board for the ISL5586 family AN9918 • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” Features • Interfaces to Broadcom 3352 cable modem device • Very low on-hook power consumption - 64mW @ Vbh = 75V • User Programmable constant current to the subscriber loop • On Chip ring generation - Balanced to 95Vpk • Sinewave, Trapezoid, DC offset • Programmable loop start and ring trip detectors • Loop start, Ground Start, Polarity Reversal (soft/hard) • On-Hook transmission and pulse metering support • Integrated battery switch • Open circuit line voltage clamp • Compatible with 3.3V devices • TR-57 compliant Longitudinal balance • 28 PLCC packaging • Latch-up free Bipolar design • Thermal protection • Pb-Free Available (RoHS Compliant) Applications • Cable Modems • Voice Over DSL (VoDSL) • Broadband Wireless Access • Voice Over Internet Protocol (VoIP) • ISDN Terminal Adapters (TA) • Small Office Home Office PBX • Wireless Local Loop Block Diagram VRSP VRXM -IN VFB F2 F1 F0 ILIM RTD DET RINGING PORT 4-WIRE PORT CONTROL LOGIC BATTERY SWITCH TRANSMIT SENSING DETECTOR LOGIC DC CONTROL 2-WIRE PORT INTERNAL LOOP BACK POL CDCM VBH VBL BSEL TRANSIENT CURRENT LIMIT TIP RING TL RD VRSM VRXP VTXP VTXM VZO CDCP |
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