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參數(shù)資料
| 型號： | MTC20454 |
| 廠商： | 意法半導體 |
| 英文描述： | QUAD INTEGRATED ADSL CMOS ANALOG FRONT END CIRCUIT |
| 中文描述： | 四集成ADSL模擬前端的CMOS電路 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 513K |
| 代理商： | MTC20454 |
1/15
MTC20454
February 2004
■
Fully integrated quad AFE for ADSL
■
Overall 12 bit resolution
■
1.1MHz signal bandwidth
■
8.8 MS/s ADC
■
8.8 MS/s DAC
■
THD: -60 dB @ full scale
■
1 V full scale input
■
Differential analog I/O
■
Accurate continuous-time channel filtering
■
3rd & 4th order tuneable continuous time LP
Filters
■
100 pin TQFP package, Industrial Range
qualified
■
175 mW power consumption per line
APPLICATIONS
■
ADSL Front-end for high density, low power
central office and digital loop carrier equipment
■
DESCRIPTION
The MTC20454 is the first DynaMiTe ADSL (Asyn-
chronous Digital Subscriber Line) analog front end
designed specifically for the central office. It is a
fifth generation Analog Front End (AFE) designed
for DMT based ADSL modems compliant with ITU
G.992.1 and G.992.1 standards. It includes four 12
bit DACs and one 13 bit ADC.
It is intended to be used with the MTC20455 DMT/
ATM processor as part of the MTK20450. The
MTC20454 provides programmable low pass fil-
ters for each of the two channels and automatic
gain control for four individual ADSL modems.
The pipeline ADC architecture provides 13 bit dy-
namic range and a signal bandwidth of 1.1 MHz.
The device consumes only 0.7 Watt in full opera-
tion of all four modems and has a power down
mode for standby.
It is housed in a compact 100 pin thin plastic quad
flat package.
TQFP100 14x14x1.4
ORDERING NUMBER: MTC20454-TQ-I
QUAD INTEGRATED ADSL CMOS
ANALOG FRONT END CIRCUIT
Figure 1. Sample board layout
ATM
SDRAM
MTC20136
Modem
Controller
Line
Discrete
FE
MTC20454
Quad Analog Front End
MTC20455
Quad ADSL DMT Modem
and ATM Framer
LD
LD
LD
LD
Discrete
FE
Discrete
FE
Discrete
FE
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| MTC20454-TQ-I | QUAD INTEGRATED ADSL CMOS ANALOG FRONT END CIRCUIT |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MTC20454-TQ-I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD INTEGRATED ADSL CMOS ANALOG FRONT END CIRCUIT |
| MTC20454-TQ-I1 | 功能描述:射頻無線雜項 ASDL Analg Front End RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| MTC20455 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD ADSL DMT TRANSCEIVER |
| MTC20455-DQ-IS | 功能描述:電信集成電路 ADSL DMT Transceiver RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| MTC20455MB-I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD ADSL DMT TRANSCEIVER |
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