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参数资料
| 型号： | MC14LC5540DW |
| 厂商： | MOTOROLA INC |
| 元件分类： | 编解码器 |
| 英文描述： | Regulating Pulse-Width Modulators 16-SO 0 to 70 |
| 中文描述： | A/MU-LAW, ADPCM CODEC, PDSO28 |
| 封装： | SOG-28 |
| 文件页数： | 1/18页 |
| 文件大小： | 189K |
| 代理商： | MC14LC5540DW |
MC14LC5540
MOTOROLA
1
Technical Summary
This technical summary provides a brief description of the MC14LC5540
ADPCM Codec. A complete data book for the MC14LC5540 is available and
can be ordered from your local Motorola sales office. The data book number is
MC145540/D.
The MC14LC5540 ADPCM Codec is a single chip implementation of a PCM
Codec–Filter and an ADPCM encoder/decoder, and therefore provides an
efficient solution for applications requiring the digitization and compression of
voiceband signals. This device is designed to operate over a wide voltage
range, 2.7 to 5.25V and, as such, is ideal for battery powered as well as ac
powered applications. The MC14LC5540 ADPCM Codec also includes a serial
control port and internal control and status registers that permit a microcom-
puter to exercise many built–in features.
The ADPCM Codec is designed to meet the 32 kbps ADPCM conformance
requirements of CCITT Recommendation G.721–1988 and ANSI T1.301. It
also meets ANSI T1.303 and CCITT Recommendation G.723–1988 for 24 kbps
ADPCM operation, and the 16 kbps ADPCM standard, CCITT Recommen-
dation G.726. This device also meets the PCM conformance specification of the
CCITT G.714 Recommendation.
Single 2.7 to 5.25 V Power Supply
Typical 2.7 V Power Dissipation of 43 mW, Power–Down of 15
μ
W
Differential Analog Circuit Design for Lowest Noise
Complete Mu–Law and A–Law Companding PCM Codec–Filter
ADPCM Transcoder for 64, 32, 24, and 16 kbps Data Rates
Universal Programmable Dual Tone Generator
Programmable Transmit Gain, Receive Gain, and Sidetone Gain
Low Noise, High Gain, Three Terminal Input Operational Amplifier for
Microphone Interface
Push–Pull, 300
Power Drivers with External Gain Adjust for Receiver
Interface
Push–Pull, 300
Auxiliary Output Drivers for Ringer Interface
Voltage Regulated Charge Pump to Power the Analog Circuitry in Low
Voltage Applications
Receive Noise Burst Detect Algorithm
Order Complete Document as MC145540/D
Device Supported by MC145537EVK ADPCM Codec Evaluation Kit
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
Order this document
by MC14LC5540TS/D
SEMICONDUCTOR TECHNICAL DATA
P SUFFIX
PLASTIC DIP
CASE 710
DW SUFFIX
SOG PACKAGE
CASE 751F
ORDERING INFORMATION
MC14LC5540P
MC14LC5540DW SOG Package
MC14LC5540FU TQFP
Plastic DIP
28
1
28
1
32
1
FU SUFFIX
TQFP
CASE 873A
REV 2
6/97 TN97060200
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