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Part Number: AD6437

 

MFG: N/A

Package Cooled: .

D/C: 08+

Description: The AD6437 is a complete analog front-end IC (AD6437) forADSL systems. Although part of the Analog Dev...


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AD6437 General Description


The AD6437 is a complete analog front-end IC (AD6437) forADSL systems. Although part of the Analog Devices DMT chipset, it is suitable for use with digital implementations from other suppliers.

As part of the AD20msp910 chipset, it complements the AD6435, the AD6436 and ADSP-2183; together with the AD816 driver and an external filter, they make a complete ADSL datapump, designed to comply with ANSI and ETSI standards for DMT-based ADSL.

The AD6437 includes both transmit and receive paths. These include the DAC (up to 20 MSPS, allowing for oversampling of the downstream transmit signal), ADC (up to 10 MSPS), low noise PGA and filters. The filters are software configurable for both the CO and RT modes. There is an auxiliary 7-bit auxiliary DAC (e.g., for timing recovery).

The AD6437 has been designed to be versatile, and most blocks can be used or externally bypassed.

AD6437 Maximum Ratings

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . ......................................................0.3 V to +6.0 V
Input Voltage . . . . . . . . . . . . . . . . . . . . .......................................................0.5 .V to VDD + 0.5 V
Output Voltage Swing . . . . . . . . . . . . . .........................................................0.5 V to VDD + 0.5 V
Operating Temperature Range (Ambient) . . .... ..................................................40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . ....................................................65°C to +150°C
Lead Temperature (5 sec) PQFP . . . . . . . . . . . . . . . . .........................................................+280°C

AD6437 Features

Complete Analog Front End for ADSL Modems
Part of ADI ADSL Chipset (AD20msp910)
  Designed to ANSI T1.413/ETSI TR238/ITU G.adsl Performance
  e.g., 6.1 Mbps Downstream Over 12K Ft.
Suitable for CO or Residence (ATU-C and ATU-R)
Includes Transmit and Receive Signal Paths:
  DAC: 20 MSPS 12-Bit Current Output
  ADC: 10 MSPS 12-Bit
  PGA: 0 dB25 dB of Gain with 1 dB Steps
Programmable Filters
Auxiliary DAC for Timing Recovery
Interface to 3.3 V or 5 V Digital Logic
Low Power Consumption (485 mW)
  80-Lead PQFP
  40 to +85 Operation

AD6437 Connection Diagram

AD6437  Connection Diagram

AD6437 datasheet

AD6437
PDF/DataSheet Download

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