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MC143416

Dual 16-Bit Linear Codec-Filter

Freescale Semiconductor 

MOTOROLA

Freescale Semiconductor, Inc.

SEMICONDUCTOR TECHNICAL DATA

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Advance Information

Dual 16-Bit Linear Codec-Filter

The MC143416 Dual 16–Bit Linear Codec–Filter is a single–chip imple-

mentation of the data conversion interface required to design high–speed

modems meeting a wide range of standards such as ITU–T V.34 and V.90

modem. It includes two high performance Analog–to–Digital (A/D) and

Digital–to–Analog (D/A) data converters. The device performs all filtering

operations related to the conditioning and sample rate conversion of signals to

and from the data interface. Output from both codecs (COder/DECoder) is in

16–bit 2s complement format.

The MC143416 includes the necessary logic needed to generate all clocks

(oversampling, intermediate frequency, and baud rate) required to perform the

data processing operations involved in the oversampling conversion of voice

and data signals. Sample rates are fully programmable in the range of 8

kilosamples/second (ks/s) to 16 ks/s. The bandwidth of the MC143416 is 0.425

* Sample Frequency (FS).

The MC143416 includes two Synchronous Serial Interfaces (SSIs) through

which an external Digital Signal Processor (DSP) can configure and monitor the

operation of the device. Digital sample data is transferred to and from the

codecs through the serial ports. In addition, information can be written and read

to the control and status registers of the device via the serial port, transparent to

the flow of sample data. When used in a high–speed modem application, the

MC143416 provides the analog front end interface required to support modem

and voice features.

MC143416 Features

• Fully–Differential Analog Circuit Design for Lowest Noise

• Two High Performance 16–Bit Sigma–Delta A/D and D/A Converters

• Band–Pass and Low–Pass Filtering for Both Codecs is Performed

On–Chip

• Power Monitor Circuit

• Single 5 V ± 5% Power Supply

• Two Configurable Serial Ports

• On–Chip Precision Reference Voltage

• On–Chip Speaker Driver and Mixer with Programmable Gain — Capable of

Delivering 15 mW of Power into a Small Speaker (32 Ω)

• Bandwidth is 0.425 * FS

• No External Filtering Required Because of Flat Response Over Passband

• Capable of Providing the Analog Front End for Wide Range of Modem

Standards

MC143416

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PB SUFFIX

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TQFP

CASE 824D

ORDERING INFORMATION

MC143416PB TQFP

This document contains information on a new product. Specifications and information herein are subject to change without notice.

REV 3

5/98 TN98052800

©MOMoTtoOroRla,OInLc.A1998

For More Information On This Product,

Go to: www.freescale.com

MC143416

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