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參數(shù)資料
| 型號： | PCD5096H |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 編解碼器 |
| 英文描述： | Universal codec |
| 中文描述： | A/MU-LAW, PCM CODEC, PQFP44 |
| 封裝： | 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44 |
| 文件頁數(shù)： | 3/52頁 |
| 文件大小： | 222K |
| 代理商： | PCD5096H |
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1997 Jan 22
3
Philips Semiconductors
Preliminary specification
Universal codec
PCD5096
1
FEATURES
Applications in digital terminal equipment featuring line
interface and/or voice functions
Digital signal processor performing echo cancellation,
codec functions and dial tone detection
Two independent receive and transmit channels
Independent programmable gain for all analog inputs
and outputs
Programmable filter correction functions
Flexible configuration of all functions
IOM-2 serial data interface (slave mode only)
Serial data interface to DTAM speech compression ICs
400 kHz I
2
C-bus slave interface (four I
2
C-bus
subaddresses)
Codec compatible with G.714 CCITT specification
PCM A-Law/u-Law (G.711 CCITT) and 16-bit linear data
Dual differential inputs and outputs performing the
following functions:
– Line interface connection
– Loudspeaker, speaker phone (hands-free)
– Earpiece, microphone (handset)
Peripheral interface: two I/O pins
Separate ringer function
Tone and ringer generator
Conference call
QFP44 package
Low voltage (2.7 to 3.6 V)
Low power consumption.
2
GENERAL DESCRIPTION
The universal codec combines two high resolution
bidirectional analog channels with a DSP in a single chip.
Besides the analog interfaces the PCD5096 includes two
digital interfaces: an I
2
C-bus interface allowing an external
microcontroller to program the chip, and a 4-wire serial
interface compatible with IOM-2 and with DTAM speech
compression ICs. This programmable serial interface
offers up to 14 channels and is capable of handling 8-bit
(A-law) or 16-bit (linear PCM) data packages, or any
combination of them. It opens the scope for a wide
application area, for example in combination with the
PCD5093H DECT baseband chip for digital cordless
business applications.
Several PCD5096s can be connected together for small
switching systems (PABX) offering a combination of
corded and cordless functionality. Besides the basic
functions like echo cancellation for two channels the
on-chip DSP provides all necessary functions such as
conference call and DTMF.
3
APPLICATIONS
The PCD5096 is designed for the telecommunications
market and is targeting small business and residential
systems offering a two-line interface or a one-line interface
combined with hands-free speaker phone. Specific
applications are detailed in Chapter 12.
4
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCD5096H
QFP44
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
×
10
×
1.75 mm
SOT307-2
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