CPC1466DTR

INTEGRATED CIRCUITS DIVISION Features Meets wetting (sealing) current requirements per ITU G.992.3 Annex 14.1 Region A Integrated bridge rectifier for polarity correction Uses inexpensive optocoupler for DC sealing current monitoring Electronic inductor, breakover, and latch circuits Current limiting and excess power protection circuits ADSL/VDSL compatible with low-pass filter network MLT and SARTS compatible Compatible with portable test sets Small SOIC or DFN Package DFN package 60 percent smaller than SOIC Applications ADSL/VDSL broadband modems Router and bridge customer premises equipment Leased line equipment Mechanized Loop Test (MLT) networks Switched Access Remote Test System (SARTS) networks Figure 1. CPC1466 Block Diagram 1 PR+ 2 NC 3 TIP TC 16 Electronic Inductor, Breakover, NC 15 Latch, and Opto Driver NC 14 4 NC 5 NC Bridge Rectifier RS 13 NC 12 6 RING PD 11 7 NC NC 10 Current Limit and Excess 8 PR- Power Protection COM 9 CPC1466 Broadband ADSL/VDSL DC Termination IC Description The CPC1466 is a DC Termination IC for broadband ADSL/VDSL applications. The high-voltage, monolithic device provides a termination for DC wetting (sealing) current in customer premises equipment (CPE) to eliminate phone line corrosion on DSL twisted-pair copper lines without telephone voice services (i.e. only broadband services). Internally, a bridge rectifier provides a polarity-insensitive DC termination for DSL loop sealing cu...