參數(shù)資料
型號(hào)： MAX3803
廠商： Maxim Integrated Products, Inc.
英文描述： DC-Coupled, UCSP 3.125Gbps Equalizer
中文描述： 直流耦合、UCSP封裝、3.125Gbps均衡器
文件頁(yè)數(shù)： 6/8頁(yè)
文件大?。?/td> 254K
代理商： MAX3803
_______________
Detailed Description
______and Applications Information
The MAX3803 is an adaptive equalizer designed to
extend the reach of transmission lines in high-frequency
backplane and rack-to-rack interconnect applications.
The MAX3803 automatically adjusts to attenuation
caused by skin-effect and dielectric losses. Although
optimized for coded and scrambled data between
2.488Gbps and 3.125Gbps, the MAX3803 provides
effective compensation for rates between 1Gbps
and 3.2Gbps.
The MAX3803 consists of low common-mode input and
output buffers, an equalizer core, a DC-offset-correction
loop, and a limiting amplifier (Figure 2).
Low Common-Mode Input and Output
The MAX3803 permits DC-coupling to CML transmitters
and receivers that require termination voltages as low
as 1.1V and as high as V
CC
. Use the V
TI
and V
TO
pins
to maintain compatible common-mode levels between
the data source and load. V
TI
and V
TO
are independent
and can be used to bridge two common-mode require-
ments without the use of DC-blocking capacitors. See
Figure 3 and Figure 4 for the equivalent input and out-
put structures.
Media Equalization
Equalization at the input compensates for high-frequency
loss encountered with FR4 stripline (edge-coupled) or
28AWG twin ax. The equalizer core is an amplifier with a
self-adjusting frequency response.
DC Cancellation Loop
The DC cancellation loop removes the pulse-width dis-
tortion caused by internal offsets. The closed-loop
response creates a low-frequency cutoff of approxi-
mately 15kHz, below which the offset control tracks the
AC signal. This also sets the limit on the maximum time
M
DC-Coupled, UCSP 3.125Gbps Equalizer
6
_______________________________________________________________________________________
MAX3803
CML
INPUT
CML
OUTPUT
IN+
IN-
OUT+
OUT-
V
TI
V
CC
V
TO
EQUALIZER
DC
CANCELLATION
LOOP
LIMITING
AMPLIFER
Figure 2. Functional Diagram
2
2
2
2
SIGNAL
SOURCE
IN
OUT
A
B
C
CONNECTOR
CONNECTOR
≤
40in EDGE-COUPLED TRANSMISSION LINE ON FR4 OR
≤
10m 28AWG TWIN AX CABLE
MAX3803
Figure 1. Backplane Interconnect
ESD
STRUCTURES
V
CC
+1.1V
≤
V
TO
≤
V
CC
50
50
OUT+
OUT-
Figure 4. CML Output Structure
ESD
STRUCTURES
V
CC
V
CC
V
CC
+1.1V
≤
V
TI
≤
V
CC
50
50
IN+
IN-
Figure 3. CML Input Structure
相關(guān)PDF資料
PDF描述
MAX3803UBP-T DC-Coupled, UCSP 3.125Gbps Equalizer
MAX3804 12.5Gbps Settable Receive Equalizer
MAX3804ETE 12.5Gbps Settable Receive Equalizer
MAX3805 10.7Gbps Adaptive Receive Equalizer
MAX3805ETE 10.7Gbps Adaptive Receive Equalizer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3803EVKIT 功能描述:通信集成電路 - 若干 Evaluation Kit for the MAX3803 RoHS:否 制造商:Maxim Integrated 類(lèi)型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX3803UBP 制造商:Maxim Integrated Products 功能描述:DC-COUPLED UCSP 3.125GBPS EQUALIZE - Rail/Tube
MAX3803UBP+T 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類(lèi)型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX3803UBP-T 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類(lèi)型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube
MAX3804ETE 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:SETTABLE RECEIVE EQUALIZER 16TQFN EP - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC EQUALIZER 12.5GBPS QFN 制造商:Maxim Integrated Products 功能描述:Equalizers 12.5Gbps Settable Receive EQ
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