Features: ·Fully integrated quad AFE for ADSL·Overall 12 bit resolution·1.1MHz signal bandwidth·8.8 MS/s ADC·8.8 MS/s DAC·THD: -60 dB @ full scale·1 V full scale input·Differential analog I/O·Accurate continuous-time channel filtering·3rd & 4th order tuneable continuous time LP Filters·100 pin...
MTC20454: Features: ·Fully integrated quad AFE for ADSL·Overall 12 bit resolution·1.1MHz signal bandwidth·8.8 MS/s ADC·8.8 MS/s DAC·THD: -60 dB @ full scale·1 V full scale input·Differential analog I/O·Accura...
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Symbol | Parameter Description | Min | Max | Unit |
VDD | Any VDD supply voltage, related to substrate | -0.5 | 5 | Vhh |
Vin | Voltage at any input pin | -0.5 | VDD + 0.5 | V |
Tstg | Storage Temperature | -40 | 125 | |
TL | Lead Temperature (10 second soldering) | 300 | ||
ILU | Latch-up current @ 80 | 100 | mA |
The MTC20454 is the first DynaMiTe ADSL (Asynchronous Digital Subscriber Line) analog front end designed specifically for the central office. It is afifth generation Analog Front End (AFE) designed for DMT based ADSL modems compliant with ITU G.992.1 and G.992.1 standards. It includes four 12 bit DACs and one 13 bit ADC.
It is intended to be used with the MTC20455 DMT/ ATM processor as part of the MTK20450. The MTC20454 provides programmable low pass filters for each of the two channels and automatic gain control for four individual ADSL modems.
The MTC20454 provides 13 bit dynamic range and a signal bandwidth of 1.1 MHz. The device consumes only 0.7 Watt in full operation of all four modems and has a power down mode for standby.
MTC20454 is housed in a compact 100 pin thin plastic quad flat package.