37928

· Compatibility with: ITU G.991.2 (G.SHDSL), ITU G.994.1 (G.HS) and ETSI RE/TM-06011 (SDSL),ANSI HDSL2 and  DSL4.
· Supports four-wire operation
· Extremely low power consumption per channel: <700mW for all ITU G.991.2 Annex B rates, masks and loops.
· Outstanding reach performance: Symmetrical rate of 1552kbps over 5.5 Km (18.0kft) for an ETSI 0.4mm cable.
· Includes 512 states TCM decoder
· Supports symmetrical rates from 192 kbps up to 2.3 Mbit/s in step of 8kbps
· Includes an internal, flexible frequency synthesizer
· Supports all G.991.2 clock modes, including synchronous and plesiochronous modes.
· Support operation with NTR, External PLL or VCXO are not required
· Includes a fully-featured flexible framer, which supports simultaneous ATM and PCM transmission
· T1/E1 and in-band ISDN services are supported
· Serial and parallel host interface
· n In-band ATM boot and management supported
· Complete software control protocol stack/API
· Boundary scan testing compliant to IEEE 1149.1 Join Test Action Group (JTAG)
· 272-pin TPBGA272 package (27x27mm)
· -40 to 85°C operation

The 8-channel SHDSL 37928 chipset from STMicroelectronics provides a complete low-power, low cost solution for Central ffice (CO) SHDSL solutions.The chipset integrates all SHDSL functions from Utopia interface to the line in three devices:
· STLC80815: 8 channel SHDSL data pump (SHDSL Transceiver)
· STLC60444: 4 channel SHDSL Analog front end
· TS615: Dual wide band operational amplifier with high output current

 The 37928 is targeted for customers looking to build cost effective central office solutions, including Digital Subscriber Line Access Multiplexers (DSLAM) and Digital Loop Carriers (DLC).