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參數(shù)資料
| 型號(hào)： | MC14LC5481 |
| 廠商： | Motorola, Inc. |
| 元件分類： | Codec |
| 英文描述： | PCM Codec-Filter(PCM 編解碼-濾波器) |
| 中文描述： | PCM編解碼器，過濾器（的PCM編解碼-濾波器） |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 313K |
| 代理商： | MC14LC5481 |
MC14LC5480EVK
MOTOROLA
3
SECTION 1 – GENERAL DESCRIPTION
1.1
ORGANIZATION OF DATA SHEET
This document is composed of three sections. Section 1 is intended to introduce the
MC14LC5480EVK Codec–Filter Evaluation Kit with a brief description of the evaluation
board and a list of key features. Section 2 introduces the hardware comprising each func-
tional block of the MC14LC5480EVK. Section 3 describes the standalone operating modes
and indicates a recommended jumper positioning for these modes. It also discusses the
back–to–back mode of operation using two MC14LC5480EVKs.
Appended to the end of this document are the latest data sheets for the applicable devices.
1.2
INTRODUCTION
The MC14LC5480EVK is the primary tool for evaluation and demonstration of the following
PCM and linear codec–filters.
Table 1–1. Mu–/A–Law and Linear PCM
Codec–Filters
Part Number
VCC
5 V
Description
MC14LC5480
Mu–/A–Law Companding
MC145481
3 V
Mu–/A–Law Companding
MC145482
5 V
Linear
MC145483
3 V
Linear
MC145484
5 V
Mu–/A–Law Companding
Figure 1–1 is a functional block diagram of the MC14LC5480EVK. The MC14LC5480EVK is
comprised of two functional blocks — the clocking circuitry, and one of the PCM Codec–
Filters listed in Table 1–1.
User I/O to the board is provided via a number of convenient connectors. First, an industry
standard 4–pin RJ11 handset jack (P1) is provided to connect the handset included with the
kit. Next, a 2x20 pin header (P13) is provided for access to key analog and digital signals for
connection to external test equipment, a user defined system, or a second
MC14LC5480EVK. And finally, two male BNC connectors (P6 and P14) provide convenient
access to the codec’s analog transmit and receive paths for connection to external test
equipment.
The MC14LC5480EVK requires either a 5 V or 3 V supply provided through P2 at the top of
the circuit board.
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