- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373744 > TSW5071N (意法半導(dǎo)體) PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION PDF資料下載
參數(shù)資料
| 型號： | TSW5071N |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | Codec |
| 英文描述： | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
| 中文描述： | 可編程解碼器/濾鏡組合第二代 |
| 文件頁數(shù)： | 13/32頁 |
| 文件大?。?/td> | 284K |
| 代理商： | TSW5071N |
第1頁第2頁第3頁第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頁當(dāng)前第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頁第30頁第31頁第32頁
Figure 1 shows a simplified diagram of the local
echo path for a typical application with a trans-
formerinterface. The magnitude and phase of the
local echo signal,measuredat VF
X
I, area function
of the termination impedance Z
T
, the line trans-
Figure 1:
SimplifiedDiagram of HybridBalance Circuit
formerandtheimpedanceof the2Wloop,Z
L
. Ifthe
impedancereflected back into the transformerpri-
mary is expressedasZ
L
’ thenthe echopath trans-
fer functionfrom VF
R
O to VF
X
I is :
H(W) = Z
L
’ /(Z
T
+ Z
L
’)
(1)
PROGRAMMING THE FILTER
On initial power-upthe Hybrid Balance filteris dis-
abled. Beforethe hybrid balance filter can be pro-
grammedit is necessaryto designthe transformer
andterminationimpedanceinorderto meetsystem
2 Winput return loss specifications,whichare nor-
mally measured against a fixed test impedance
(600or 900
inmostcountries).Onlythencan the
echo path bemodeledand thehybridbalancefilter
programmed. Hybrid balancing is also measured
against a fixed test impedance, specified by each
national Telecom administration to provide ade-
quate control of talker and listener echo over the
majority of theirnetwork connections.This test im-
pedance is Z
L
in figure 1. The echo signal and the
degree of transhybrid loss obtained by the pro-
grammable filter must be measuredfromthe PCM
digital input D
R
0, to the PCM digital output D
X
0,
eitherbydigitaltestsignalanalysisorbyconversion
back to analogby a PCM CODEC/Filter.
Three registers must be programmed in COMBO
IIG to fully configure the Hybrid Balance Filter as
follows:
Register 1: select/de-select Hybrid Balance Filter;
invert/non-invert cancellation signal;
select/de-select Hybal2 filter section;
attenuatorsetting.
Register2: select/de-select Hybal1 filter;
set Hybal1 to Bi-Quad or 1st order;
program pole and zero frequency.
Register3 : programpolefrequencyinHybal2filter;
programzerofrequencyinHybal2filter;
settings = Please refer to software
TS5077-2.
Standard filter design techniques may be used to
modelthe echopath(seeequation(1)) and design
amatchinghybridbalancefilterconfiguration.Alter-
natively, the frequency responseof the echo path
can be measuredand the hybridbalancefilter pro-
grammed to replicate it.
An Hybrid Balance filter design guide and soft-
ware optimization program are available under li-
cense from SGS-THOMSON Microelectronics (or-
der TS5077-2).
Bit Number
Function
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
By Pass Hybal 1
Filter
X
X
X
X
X
X
X
X
Pole/zero Setting
Table 10:
Hybrid Balance Register 2 Byte 2 in-
structions
TS5070 - TS5071
13/32
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TSP5071N | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
| TS5070FNTR | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
| TSW5070FNTR | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
| TSP5070FNTR | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
| TS5070FN | PROGRAMMABLE CODEC/FILTER COMBO 2ND GENERATION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSW6011EVM | 功能描述:射頻開發(fā)工具 TSW6011EVM Eval Mod RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| TSW7001EVM | 功能描述:放大器 IC 開發(fā)工具 TSW7001EVM Demo Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| TSWA3NALFS | 制造商:C&K Components 功能描述:- Tape and Reel |
| TSWA3NC LFS | 功能描述:SWITCH NAV SCROLL SELECT RoHS:是 類別:開關(guān) >> 導(dǎo)航，操縱桿 系列:TSW 產(chǎn)品培訓(xùn)模塊:Joysticks - Hall Effects Based Joystick Overview 產(chǎn)品目錄繪圖:Joystick 3 Axis 標(biāo)準(zhǔn)包裝:1 系列:HFX 系列 I 類型:操縱桿，面板安裝 輸出:USB 開關(guān)功能:3 軸，帶選擇功能 觸點額定電壓:- 觸動器類型:操縱桿 端接類型:導(dǎo)線引線，帶 USB 操作力:- 產(chǎn)品目錄頁面:2517 (CN2011-ZH PDF) 其它名稱:679-2507HFX-45SOO-U |
| TSWA3NCB11 LFS | 制造商:C&K Components 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。