Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
The ST70235A is the DMT modem and ATM framer of the STMicroelectronics ASCOT™ chipset. When coupled with ST70134 analog front-end and an external controller running dedicated firmware, the product fulfills ANSI T1.413 "Issue 2" DMT ADSL specification. The chip supports UTOPIA level 1 and UTOPIA level 2 interface. The ST70235A can be split up into two differe.
o different sections. The physical one performs the DMT modulation, demodulation, Reed-Solomon encoding, bit interleaving and 4D trellis coding. The ATM section embodies framing functions for the generic and ATM Transmission Convergence (TC) layers. The generic TC consists of data scrambling and Reed Solomon error corrections, with and without interleaving. The ST70235A is controlled and programmed by an external controller (ADSL Transceiver Controller, ATC) that sets the programmable coefficients. The firmware controls the initialization phase and carries out the consequent adaptation operati.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | ST7025 |
Sitronix |
96 x 9 Dots Segment-type LCD Controller/Driver |
|
| 2 | ST7026 |
Sitronix |
48 x 4 Dots Segment-type LCD Controller/Driver |
|
| 3 | ST70-22MF |
Shindengen |
TVS |
|
| 4 | ST70-27F |
Shindengen |
TVS |
|
| 5 | ST70-27FZ |
Shindengen |
TVS |
|
| 6 | ST70-27MF |
SHINDENGEN |
TVS |
|
| 7 | ST70-30MF |
SHINDENGEN |
TVS |
|
| 8 | ST700C |
International Rectifier |
PHASE CONTROL THYRISTORS Hockey Puk Version |
|
| 9 | ST70134 |
ST Microelectronics |
INTEGRATED ADSL CMOS ANALOG FRONT-END |
|
| 10 | ST70134A |
STMicroelectronics |
INTEGRATED ADSL CMOS ANALOG FRONT-END |
|
| 11 | ST70135A |
ST Microelectronics |
ASCOTTM DMT TRANSCEIVER |
|
| 12 | ST70136 |
ST Microelectronics |
CPE ADSL ANALOG FRONT END |
|