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參數(shù)資料
| 型號： | MT9094 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Digital Telephone (DPhone-II)(數(shù)字電話) |
| 中文描述： | 數(shù)字電話（DPhone -Ⅱ）（數(shù)字電話） |
| 文件頁數(shù)： | 1/34頁 |
| 文件大小： | 234K |
| 代理商： | MT9094 |
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7-45
Features
Programmable
μ
-
Law
/
A
-
Law codec and filters
Programmable CCITT (G.711)/sign-magnitude
coding
Programmable transmit, receive and side-tone
gains
DSP-based:
i)
Speakerphone switching algorithm
ii) DTMF and single tone generator
iii) Tone Ringer
Differential interface to telephony transducers
Differential audio paths
Single 5 volt power supply
Applications
Fully featured digital telephone sets
Cellular phone sets
Local area communications stations
Description
The MT9094 DPhone-
II
is a fully featured integrated
digital telephone circuit. Voice band signals are
converted to digital PCM and vice versa by a
switched capacitor Filter/Codec. The Filter/Codec
uses an ingenious differential architecture to achieve
low noise operation over a wide dynamic range with
a single 5V supply. A Digital Signal Processor
provides handsfree speaker-phone operation. The
DSP is also used to generate tones (DTMF, Ringer
and Call Progress) and control audio gains. Internal
registers are accessed through a serial microport
conforming to INTEL MCS-51 specifications. The
device is fabricated in Mitel's low power ISO
2
-CMOS
technology.
Figure 1 Functional Block Diagram
Digital Signal Processor
Filter/Codec Gain
DSTo
DSTi
F0i
C4i
VSSD
VDD
VSSA
VSS
SPKR
VBias
VRef
S1
S12
BP
WD PWRST IC
CS
SCLK
DATA 1
DATA 2
SPKR-
SPKR+
HSPKR-
HSPKR+
M+
M-
MIC+
MIC-
Transducer
Interface
22.5/-72dB
1.5dB
Tx & Rx
ENCODER
7dB
DECODER
-7dB
C-Channel
Registers
Control
Registers
Timing
Circuits
LCD Driver
New Call
Tone
Generator
S/P &
P/S
Converter
Serial
Port
(
MCS-51
Compatible)
STATUS
ISSUE 2
May 1995
MT9094
Digital Telephone (DPhone-II)
ISO
2
-CMOS ST-BUS
FAMILY
Ordering Information
MT9094AP
44 Pin PLCC
-40
°
C to +85
°
C
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PDF描述 |
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| MT9122 | Dual Voice Echo Canceller with Tone Detection(雙話音回聲消除器（帶音調(diào)檢測功能）) |
| MT9122AE | CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9122AP | CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9123AE | CMOS Dual Voice Echo Canceller |
| MT9123 | Dual Voice Echo Canceller(雙話音回聲消除器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9094AP | 制造商:Microsemi Corporation 功能描述: 制造商:Mitel Networks Corporation 功能描述: |
| MT9094AP1 | 制造商:Microsemi Corporation 功能描述:DGTL TEL 44PLCC - Rail/Tube |
| MT9094APR1 | 制造商:Microsemi Corporation 功能描述:DGTL TEL 44PLCC - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:DGTL TEL 44PLCC - Tape and Reel |
| MT9122 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9122AE | 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 2CH G.164/G.165/G.711 W/ TONE DETECTION - Rail/Tube |
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