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參數(shù)資料
| 型號(hào)： | LMH6678 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Power 2-Channel Central-Office xDSL Driver |
| 中文描述： | 低功耗雙通道中環(huán)辦事處的xDSL驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大?。?/td> | 1792K |
| 代理商： | LMH6678 |
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LMH6678
Low Power 2-Channel Central-Office xDSL Driver
General Description
The LMH6678 is a low power 2-channel differential output
driver utilizing dual current feedback op amps with a fixed
gain of A
V
= +5.4.
The LMH6678 utilizes high integration with low power con-
sumption to provide 580 mW at 19.8 dBm line output. The
LMH6678 can also be put into a listen mode to maintain the
termination for receive signals with 100 mW/Ch power dis-
sipation.
The LMH6678 has two separate 2-bit power control inputs
compatible with 3.3V CMOS for each channel that enable
independent control of line status. When the drivers for both
channels are shut off, power consumption drops to only 6
mW.
Thermal Shutdown function protects the IC from a shorted
line fault or system over temperature.
The LMH6678 is available in a 5mm x 4mm 24-lead LLP
package.
Features
AV
= AV
= +12V, AV
= DV
= +3.3V, T
A
= 25C,
2/3 Power Mode, Typical values unless specified.
n
Low power consumption
— Line power P
LINE
= 100 mW
— No signal
— Listen mode
— Shutdown mode
n
Power Supply
— Analog (AV
CC1
, AV
CC2
)
— Digital (DV
DD
, AV
DD
)
n
Output voltage swing
@
R
L
= 31
— Single ended
— Differential
n
Multi tone power ratio, f = 500 kHz
n
Output current
n
Thermal shutdown protection
n
5mm x 4mm LLP package
n
Low thermal resistance
n
Small PCB footprint
580 mW/Ch
185 mW/Ch
100 mW/Ch
3 mW/Ch
+12V
+3.3V
11.5 V
PP
23 V
PP
72 dB
580 mA
36C/W (
θ
JA
)
Application
n
Full rate ADSL, ADSL+, ADSL++ or G. Lite linecard
n
Remote DSLAMs
Block Diagram
20084037
December 2003
L
2003 National Semiconductor Corporation
DS200840
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMH6678B WAF | 制造商:Texas Instruments 功能描述: |
| LMH6678LQ | 功能描述:IC DRIVER XDSL 2CH LO PWR 24-LLP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| LMH6678LQX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Power 2-Channel Central-Office xDSL Driver |
| LMH6682 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:190MHz Single Supply, Dual and Triple Operational Amplifiers |
| LMH6682MA | 制造商:Texas Instruments 功能描述:OP Amp Dual Volt Fdbk ±6V/12V 8-Pin SOIC N Rail 制造商:Texas Instruments 功能描述:AMP, VIDEO DUAL, SMD, SOIC8, 6682 |
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