MC143416 Datasheet, PDF (1/24 Pages) Freescale Semiconductor, Inc – Dual 16-Bit Linear Codec-Filter

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Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
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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
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MC143416
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