- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383646 > MT9300 (Mitel Networks Corporation) Multi-Channel Voice Echo Canceller(多通道話音回聲消除器) PDF資料下載
參數(shù)資料
| 型號(hào)： | MT9300 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Multi-Channel Voice Echo Canceller(多通道話音回聲消除器) |
| 中文描述： | 多通道語音回聲消除器（多通道話音回聲消除器） |
| 文件頁數(shù)： | 4/29頁 |
| 文件大小： | 110K |
| 代理商： | MT9300 |
第1頁第2頁第3頁當(dāng)前第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
MT9300
Advance Information
4
140
MCLK
Master Clock (Input).
Nominal 10MHz or 20MHz Master Clock input. May be
connected to an asynchronous (relative to frame signal) clock source.
143
Fsel
Frequency select (Input).
This input selects the Master Clock frequency
operation. When Fsel pin is low, nominal 19.2MHz Master Clock input must be
applied. When Fsel pin is high, nominal 9.6MHz Master Clock input must be
applied.
146
PLLV
SS
PLLV
DD
TMS
PLL Ground.
Must be connected to V
SS
PLL Power Supply.
Must be connected to V
DD
Test Mode Select (3.3V Input).
JTAG signal that controls the state transitions of
the TAP controller. This pin is pulled high by an internal pull-up when not driven.
147
152
153
TDI
Test Serial Data In (3.3V Input).
JTAG serial test instructions and data are shifted
in on this pin. This pin is pulled high by an internal pull-up when not driven.
154
TDO
Test Serial Data Out (Output).
JTAG serial data is output on this pin on the falling
edge of TCK. This pin is held in high impedance state when JTAG scan is not
enabled.
155
TCK
Test Clock (3.3V Input).
Provides the clock to the JTAG test logic.
156
TRST
Test Reset (3.3V Input).
Asynchronously initializes the JTAG TAP controller by
putting it in the Test-Logic-Reset state. This pin should be pulsed low on power-up
or held low, to ensure that the MT9300 is in the normal functional mode. This pin is
pulled by an internal pull-down when not driven.
158
RESET
Device Reset (Schmitt Trigger Input).
An active low resets the device and puts
the MT9300 into a low-power stand-by mode.
When the RESET pin is returned to logic high and a clock is applied to the
MCLK pin, the device will automatically execute initialization routines, which
preset all the Control and Status Registers to their default power-up values.
Pin Description (continued)
Pin #
Name
Description
Device Overview
The
cancellers divided into 16 groups. Each group has
two echo cancellers, Echo Canceller A and Echo
Canceller B. Each group can be configured in
Normal,
Extended
Delay
configurations. In
Normal configuration
, a group of
echo cancellers provides two channels of 64ms echo
cancellation, which run independently on different
channels. In
Extended Delay
configuration, a group
of echo cancellers achieves 128ms of echo
cancellation by cascading the two echo cancellers (A
& B). In
Back-to-Back
configuration, the two echo
cancellers from the same group are positioned to
cancel echo coming from both directions in a single
channel,
providing
full-duplex
cancellation.
MT9300
architecture
contains
32
echo
or
Back-to-Back
64ms
echo
Each echo canceller contains the following main
elements (see Figure 3).
Adaptive Filter for estimating the echo channel
Subtractor for cancelling the echo
Double-Talk detector for disabling the filter
adaptation during periods of double-talk
Non-Linear Processor for suppression of
residual echo
Disable Tone Detectors for detecting valid
disable tones at the input of receive and send
paths
Narrow-Band Detector for preventing Adaptive
Filter divergence caused by narrow-band
signals
Offset Null filters for removing the DC
component in PCM channels
12dB attenuator for signal attenuation
Parallel controller interface compatible with
Motorola microcontrollers
PCM encoder/decoder compatible with
μ
/A-
Law ITU-T G.711 or Sign-Magnitude coding
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT933 | () |
| MT93L16 | Low-Voltage Acoustic Echo Canceller(低電壓回聲消除器) |
| MTD2955V-1 | 30V N-Channel PowerTrench MOSFET |
| MTD2955V-1G | 30V N-Channel PowerTrench MOSFET |
| MTD2955VG | 30V N-Channel PowerTrench MOSFET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9300AL | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Multi-Channel Voice Echo Canceller |
| MT9300B | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multi-Channel Voice Echo Canceller |
| MT9300BL | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multi-Channel Voice Echo Canceller |
| MT9300BV | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multi-Channel Voice Echo Canceller |
| MT9315 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:CMOS Acoustic Echo Canceller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。