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參數(shù)資料
| 型號： | DS1867 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Dual Digital Potentiometer with EEPROM(帶EEPROM的雙路數(shù)字電位器) |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 107K |
| 代理商： | DS1867 |
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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD6437
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1997
Analog Front End for ADSL
FUNCT IONAL BLOCK DIAGRAM
RX_ADC
LOW PASS
FILTER OUT
TXLPFIN
IOUT
AD6437
RX[11:0]
CONTROL
LOGIC
TX[13:0]
CPORT
VCXO
FROM
HYBRID
TO
DRIVER
LOOPBACK
14
3
12
ANALOG
FILTER
7-BIT
DAC
12-BIT
DAC
12-BIT
ADC
PGA
ANALOG
FILTER
FEATURES
Complete Analog Front End for ADSL Modems
Part of ADI ADSL Chipset (AD20msp910)
Designed to ANSI T1.413/ETSI TR238/ITU G.adsl
Performance
e.g., 6.1 Mbps Downstream Over 12K Ft.
Suitable for CO or Residence (ATU-C and ATU-R)
Includes Transmit and Receive Signal Paths:
DAC: 20 MSPS 12-Bit Current Output
ADC: 10 MSPS 12-Bit
PGA: 0 dB–25 dB of Gain with 1 dB Steps
Programmable Filters
Auxiliary DAC for Timing Recovery
Interface to 3.3 V or 5 V Digital Logic
Low Power Consumption (485 mW)
80-Lead PQFP
–40
8
C to +85
8
C Operation
GE NE RAL DE SCRIPT ION
T he AD6437 is a complete analog front-end IC (AD6437) for
ADSL systems. Although part of the Analog Devices DMT
chipset, it is suitable for use with digital implementations from
other suppliers.
As part of the AD20msp910 chipset, it complements the
AD6435, the AD6436 and ADSP-2183; together with the AD816
driver and an external filter, they make a complete ADSL
datapump, designed to comply with ANSI and ET SI standards
for DMT -based ADSL.
T he AD6437 includes both transmit and receive paths. T hese
include the DAC (up to 20 MSPS, allowing for oversampling of
the downstream transmit signal), ADC (up to 10 MSPS), low
noise PGA and filters. T he filters are software configurable for
both the CO and RT modes. T here is an auxiliary 7-bit auxiliary
DAC (e.g., for timing recovery).
T he AD6437 has been designed to be versatile, and most blocks
can be used or externally bypassed.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1867-010 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Digital Potentiometer with EEPROM |
| DS1867-050 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Digital Potentiometer with EEPROM |
| DS1867-10 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1867-10+ | 功能描述:數(shù)字電位計 IC Dual w/EEPROM RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1867-100 | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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