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參數(shù)資料
| 型號： | ACCESSRUNNERADSL-USB |
| 英文描述： | Scalable. Discrete Multitone-based. T1.413 Issue 2. G.992.1 (G.dmt). and G.992.2 (G.lite) - Compliant ADSL Modem Device Set |
| 中文描述： | 可擴(kuò)展性。離散多音為基礎(chǔ)的。 T1.413第2期。 G.992.1（G.dmt）。和G.992.2（G.lite） -符合ADSL調(diào)制解調(diào)器設(shè)備集 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 159K |
| 代理商： | ACCESSRUNNERADSL-USB |
Data Sheet (Preliminary)
Conexant Proprietary Information
Doc. No.100394B
October 19, 1999
AccessRunner
ADSL Modem Device Set for PCI Applications
Controller-less, Scalable, Discrete Multitone-based, G.dmt- and G.lite-
compliant, ADSL Modem Device Set for PCI Applications
Conexant’s AccessRunner
ADSL modem device set is compliant
with the full-rate ANSI T1.413 Issue 2 and ITU G.dmt (G.992.1)
ADSL standards, and with the splitterless ITU G.lite (G.992.2)
specification. This rate-adaptive solution is designed for controller-
less PCI desktop applications and supports downstream data rates
of up to 8 Mbps and upstream data rates of up to 1 Mbps.
The device set takes advantage of the processing power available
with most new computers by eliminating the need for a separate
microcontroller, resulting in a cost-effective solution suitable for
both G.dmt and G.lite applications. Host-based software provides
support for current industry standards for PPP over AAL5 over
ATM over ADSL and RFC 1483 for Windows 98 and Windows
2000.
The device set, as shown in Figure 1, consists of four chips:
PCI bus interface (AccessRunner P46 in a 176-pin TQFP)
DMT-based data pump (AccessRunner 11627 in a 176-pin
TQFP)
Analog front end (AccessRunner 20431 in a 32-pin TQFP)
Line driver (AccessRunner 20441 in a 16-pin SSOP or
32-pin TQFP)
PCI Bus
Host-
Based
ADSL
Controller
Software
P46
PCI Bus
Interface
176-pin TQFP
11627
ADSL DMT
Data Pump
176-pin TQFP
20431
Analog Front
End
32-pin TQFP
20441
Line Driver
16-pin TSSOP
Telephone
Line
Figure 1. AccessRunner ADSL Modem for PCI Applications
Features
Complete controller-less PCI ADSL
solution
Compliant with ADSL standards
Full-rate ANSI T1.413 Issue 2 and ITU
G.dmt (G.992.1) standards
Splitterless ITU G.lite (G.992.2)
specification
DMT modulation and demodulation
Full-rate adaptive modem
Maximum downstream rate of 8 Mbps
Maximum upstream rate of 1 Mbps
Supports splitterless ADSL
implementation
WAN mode support: PPP over AAL5/ATM
over ADSL via Windows 98/2000
LAN mode support: RFC 1483 via
Windows 98/2000
Compliant with PCI Local Bus
Specification, Revision 2.2
Compliant with PCI Bus Power
Management Interface Specification,
Version 1.0
Tone detection for low power mode
D20431 AFE Features
Receive signal path includes:
Integrated hybrid receiver circuit with
programmable gain
High pass filtering and 27dB of
Automatic Gain Control (AGC) to
improve signal-to-echo ratio
14-bit ADC
Transmit signal path includes:
30dB of AGC for transmit power control
Low pass filtering to suppress noise in
the receive band
14-bit DAC
Independent digital serial data and control
interfaces
Low power tone detection mode.
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參數(shù)描述 |
|---|---|
| ACCESS-TOUCH | 制造商:HexWax Ltd 功能描述:IC CONTROLLER TOUCH KEY 20SSOP |
| ACCESS-TOUCH-EVAL | 功能描述:插座和適配器 Access-Touch eval Board populated RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x |
| ACCESS-TOUCH-SS | 功能描述:觸摸傳感器開發(fā)工具 Touch keyed access controller RoHS:否 制造商:Cypress Semiconductor 工具用于評估: 接口類型: 工作電壓: 最大工作溫度: |
| ACC-F01-1 | 制造商:E-Switch Inc 功能描述:SWITCH CAP BLACK |
| ACC-F01-2 | 制造商:E-Switch Inc 功能描述:SWITCH CAP CLEAR |
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