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ST20190

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SUMMARY OF CHARACTERISTICS ST20190

6.1 ST20184 FEATURES

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Fully integrated ADSL line driver concept (minimises external components)

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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

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14 bit

Σ∆ ADC with equivalent ENOB @ 2.2 MS/s

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8.8MS/s DAC (14bits)

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Integrated ADSL highpass filter for POTS and Echo cancellation

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Fixed XTAL

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2.2MHz signal bandwidth / 4.3 kHz tone spacing

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Supply voltages: 3.3V and 5V

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Temperature range: -40°C to 85°C

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Typical power consumption 900 mW

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Package: TQFP100

6.2 ST20196 FEATURES

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DMT modulation

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

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Max. number of tones: 512 tones

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Flexible bit assignment

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Max clock speed: 36 MHz

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Max. tone spacing: 4.325 kHz

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RS encoder: max code word 256 bytes

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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

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Full support of Utopia level 1 or 2 interface

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Cached ARM controller for improved performance

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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

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Interface to ReachDSL™ engine

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Supply voltages: 3.3V and 1.2V

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Temperature range: -40°C to 85°C

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Typical power consumption 700 mW

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Package: LBGA208