ST20184 Ver la hoja de datos (PDF) - STMicroelectronics

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ST20184

ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications with Utopia II Interface

STMicroelectronics 

6 SUMMARY OF CHARACTERISTICS ST20190

6.1 ST20184 FEATURES

■ Fully integrated ADSL line driver concept (minimises external components)

■ Standards support for:

– ANSI T1.413 Issue 2

– ITU G.992.1 (G.dmt)

– Annex A, B and C

– ITU G.992.2 (G.lite)

– ITU G.992.3 (ADSL2)

– Annex A, B, C, I, J and L

– ITU G.992.5 (ADSL2+)

– Annex A, B, C, I, J and L

– Support of ReachDSL with digital companion chip

■ 14 bit Σ∆ ADC with equivalent ENOB @ 2.2 MS/s

■ 8.8MS/s DAC (14bits)

■ Integrated ADSL highpass filter for POTS and Echo cancellation

■ Fixed XTAL

■ 2.2MHz signal bandwidth / 4.3 kHz tone spacing

■ Supply voltages: 3.3V and 5V

■ Temperature range: -40°C to 85°C

■ Typical power consumption 900 mW

■ Package: TQFP100

6.2 ST20196 FEATURES

■ DMT modulation

■ Max. number of bit per tone: 15 bits (32766 constellation points)

■ Max. number of tones: 512 tones

■ Flexible bit assignment

■ Max clock speed: 36 MHz

■ Max. tone spacing: 4.325 kHz

■ RS encoder: max code word 256 bytes

■ ATM Processor:

– ATM cell buffering

– Cell counting

– Insert/Extract, Idle/Unassigned ATM cells (rate adaptation)

– ATM HEC generation module (CCITT I.432)

– ATM payload scrambler: payload width: 48 bytes

■ Full support of Utopia level 1 or 2 interface

■ Cached ARM controller for improved performance

■ Modem Command interface

– compatible with Utopia level 2 8-bit parallel management interface

– ST's CtrlE modem control command protocol

– Access through parallel 8bit bus or asynchronous serial port

– Dual port RAM mailbox

■ Interface to ReachDSL™ engine

■ Supply voltages: 3.3V and 1.2V

■ Temperature range: -40°C to 85°C

■ Typical power consumption 700 mW

■ Package: LBGA208

ST20190

5/7

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