Maxim > Products > T/E Carrier and Packetized Communications > 73M1903

73M1903

Modem Analog Front-End

Ideal AFE Solution for Cost-Sensitive Embedded Soft Modem Solutions

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
73M1903	Active: In Production. See Ordering Information for details.

Description

The 73M1903 is a single-chip analog front-end (AFE) device used in embedded soft modem and voice applications including high-speed data modems, satellite set-top boxes, POS terminals, MFP and fax terminals, and IP phones. This device offers multiple features designed to reduce the external component count and deliver robust performance with a low-cost transformer DAA. The 73M1903 is pin-compatible with Teridian’s 73M2901CE modem chip, which facilitates the user to transition from the 73M2901 to a soft modem solution with minimal risk and redesign of the line-side DAA circuitry.

Data Sheet

Download	Rev 2	(PDF, 548kB)
E-Mail

Key Features

Highly Integrated AFE for Soft Modem Applications
External DAA Circuitry is Optimized for Best Cost Structure for Single and Multiple Country PSTN Access Compliance
Robust and Reliable Solution for Embedded Systems Designed for Normal and Extreme Environments
Easy Path to a Soft Modem Transition

Applications/Uses

Embedded Modem Applications such as Medical and Industrial Telemetry
Multifunctional Printers (MFPs)
Personal Video Recorders
POS Terminals
Satellite Set-Top Boxes
Stand-Alone Fax Machines
Utility Met

Key Specifications:

FXO and Modem ICs

Part Number

Host Interface

Features

Supported Modulation

EV Kit

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

max w/pins

See Notes

73M1903

Serial Interface for Control and Data

Integrated Codec and DAA Control

Compatible with All ITU-T V-Series Modem Modulations

Yes

SQFN/32

25.5

$1.52 @1k

See All FXO and Modem ICs (6)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Application Notes

Application Note 5017		Test Results for Energy and Voltage Parallel Pick-Up and Line-In-Use Detection
Application Note 5020		Software-Based Ring/LIU/PPU Detection

Reliability Reports

Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
73M1903-EVM-600			Active	KIT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
73M1903-EVM-ETSI			Active	KIT; Land Pattern: Not Available	-40°C to +85°C	See data sheet
73M1903-IM/F			Active	SQFN;32 pin;25.5 mm² Land Pattern: Not Applicable Use pkgcode/variation: G3255+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
73M1903-IM/F1		N/A	No Longer Available	SQFN;32 pin;25.5 mm² Land Pattern: Not Applicable Use pkgcode/variation: G3255+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
73M1903-IMR/F			Active	SQFN;32 pin;25.5 mm² Land Pattern: Not Applicable Use pkgcode/variation: G3255+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
73M1903-IMR/F1		N/A	No Longer Available	SQFN;32 pin;25.5 mm² Land Pattern: Not Applicable Use pkgcode/variation: G3255+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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See All FXO and Modem ICs (6 Products)

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Products with Similar Part Numbers

73M1903C-EVM	73M1903C Evaluation Board
73M1903C	Modem Analog Front-End

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-5388 Rev 2; 2010-07-28
This page last modified: 2010-07-28