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Part Number: MTC20154

 

MFG: N/A

Package Cooled: .

D/C: 08+

Description: The MTC20154 is the fifth generation Analog Front End (AFE) designed for DMT based ADSL (Asynchronous ...


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MTC20154 General Description


The MTC20154 is the fifth generation Analog Front End (AFE) designed for DMT based ADSL (Asynchronous Digital Subscriber Line) modems compliant with ANSI T1.413 category 2 standard. It includes one 12 bit DAC and one 13 bit ADC.It isintended to be used with the MTC20156/ MTC20147 DMT/ATM processors as part of the MTK20150/MTK20141 chipsets, but may also be used to support other xDSL signal processors.

The MTC20154 provides programmable low pass filters for each of the two channels and automatic gain control. A configuration pin allows the filters to be switched from ATU-R mode to ATU-C mode. The pipeline ADC architecture provides 13 bit dynamic range and a signal bandwith of 1.1 MHz. The device consumes only 0.35 Watt in full operation and has a power down mode for standby. It is housed in a compact 64 pin thin plastic quad flat package.

MTC20154 Maximum Ratings

Operation of the device beyond these limits may cause permanent damage. It is not implied that more than
one of these conditions can be applied simultaneously.
Symbol Parameter Min. Typ. 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
Pd Power Dissipation 350 350 500 mW
Tj Junction Temperature -40   110

Operating Conditions
Unless specified, the characteristic limits of 'Static characteristics' in this document apply for the following
operating conditions:
Symbol Parameter Min. Max. Unit
AVDD AVDD supply voltages, related to substrate 3.0 3.6 V
DVDD DVDD supply voltages, related to substrate 2.7 3.6 V
Vin, Vout Voltage at any input and output pin 0 VDD V
Tamb Ambient Temperature - I version -40 85
Tamb Ambient Temperature - C version 0 70

Static Characteristics
Digital Inputs
Schmitt-trigger inputs: TXi, CTRLIN, PDOWN, LTNT, RESETN, TEST
Symbol Parameter Min. Max. Unit
VIL Low level input voltage   0.2*DVD V
VIH High level input voltage 0.8*DVDD   V
VH Hysteresis 1.0 1.3 V
Cinp Input capacitance   3 pF

Digital Outputs
Hard driven outputs: RXi, CLKWD, GPI, DRVI, DRVSD
Symbol Parameter Test Condition Min. Max. Unit
VOL Low level output voltage Iout = -4 mA   .15*DVDD V
VOH High level output voltage Iout = 4mA .85*DVDD   V
Cload Load capacitance     30 pF

Clock Driver output: CLKM
Symbol Parameter Test Condition Min. Max. Unit
VOL Low level output voltage Iout = -4 mA   .15*DVDD V
VOH High level output voltage Iout = 4mA .85*DVDD   V
Cload Load capacitance     30 pF
Dcycle Duty cycle   45 55 %
 

MTC20154 Features

·Fully integrated 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
·1V full scale input
·Differential analog I/O
·Accurate continuous-time channel filtering
·3rd & 4th order tunable continuous time LP Filters
·64 pin TQFP package
·350mW power consumption

MTC20154 Typical Application

·ADSL Front-end for all full rate and Lite standards

MTC20154 Connection Diagram

MTC20154  Connection Diagram

MTC20154 datasheet

MTC20154
PDF/DataSheet Download

  • Datasheet: MTC20154
  • File Size: 546257 KB
  • Manufacturer: STMICROELECTRONICS [STMicroelectronics]
  • Click here to Download

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