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
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