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The DS2176 is a lowpower CMOS device specifically designed for synchronizing receive side looptimed Tcarrier data streams with system side timing. The device has several flexible operating modeswhich simplify interfacing incoming data to parallel and serial TDM backplanes. The device extracts,buffers andintegrates ABCD signaling; signaling updates are prohibited during alarm or slip conditions.
The buffer replaces extensive hardware in existing applications with one "skinny" 24lead package.Application areas include digital trunks, drop and insert equipment, transcoders, digitalcrossconnects(DACS), private network equipment and PABXtocomputer interfaces such as DMI and CPI.
DS2176 Maximum Ratings
Voltage on Any Pin Relative to Ground..................1.0V to +7.0V Operating Temperature ..............................................0 to 70 Storage Temperature......................................... 55 to +125 Soldering Temperature..................................260for 10 seconds
DS2176 Features
Synchronizes looptimed and systemtimedT1 data streams Twoframe buffer depth; slips occur on frameboundaries Output indicates when slip occurs Buffer may be recentered externally Ideal for 1.544 to 2.048 MHz rate conversion Interfaces to parallel or serial backplanes Extracts and buffers robbedbit signaling Inhibits signaling updates during alarm or slipconditions Integration feature "debounces" signaling Slipcompensated output indicates whensignaling updates occur Compatible with DS2180A T1 Transceiver Surface mount package available, designatedDS2176Q Industrial temperature range of 40°C to+85°C available, designated DS2176N