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參數(shù)資料
| 型號(hào)： | S5N8950 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | G.dmt ADSL Transceiver for CO and CPE |
| 中文描述： | G.dmt寬帶收發(fā)器對(duì)CO和CPE |
| 文件頁(yè)數(shù)： | 10/19頁(yè) |
| 文件大?。?/td> | 203K |
| 代理商： | S5N8950 |
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S5N8950
G.dmt ADSL Transceiver for CO and CPE
CONFIDENTIAL
Preliminary Information ( Rev 1.2 )
4 Functional Description
The G.dmt ADSL transceiver consists of two main chips; G.dmt ADSL transceiver chip (S5N8950) and
Analog Front End chip (S5N8951). The AFE provides an analog interface with line driver and hybrid
components to connect the PSTN. The G.dmt ADSL transceiver provides all the digital functional as
depicted in Figure 4.
Figure 4: Block diagram
The input bit stream is divided into bit slices and they are fed into the QAM, which are allocated to 256
sub-channels according to the bit loading table. The bit slices are then converted to frequency-domain
complex samples by the QAM encoder. The 256 complex samples are changed to 512 time-domain
samples by IFFT. The Tx filter performs band separation and interpolation functions.
The received signals are attenuated and distorted in terms of both phase and amplitude. PLL fixes the
phase errors within 4 samples using the 276 kHz pilot tone transmitted from the CO side. The ones over 4
TeakLite
DSP core
UTOPIA
interface
Serial
interface
SRAM for
Program & Data
Host
interface
J TAG
interface
UART
interface
T
F
C
E
C
D
D
M
D
D
Interpolator
Decimator
Echo
canceller
AFE Tx
interface
AFE Rx
interface
Control
Bus
PLL
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S5N8951 | G.dmt ADSL Analog Front End IC |
| S5N8951X | G.dmt ADSL Analog Front End IC |
| S5N8952 | ADSL Transceiver for NIC |
| S5N8952X | ADSL Transceiver for NIC |
| S5T8610 | DIGITAL CLP MODEM WITH ADPCM CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S5N8951 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:G.dmt ADSL Analog Front End IC |
| S5N8951X | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:G.dmt ADSL Analog Front End IC |
| S5N8952 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:ADSL Transceiver for NIC |
| S5N8952X | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:ADSL Transceiver for NIC |
| S5-P | 制造商:TURCK Inc 功能描述:Relay, Socket, Releco S5-P, 3 Pole, 11 Contact, PCB Mount, R4518 |
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