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參數(shù)資料
| 型號： | MAX3802UTK+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 0K |
| 描述： | IC EQUALIZE CABLE 3.2GBPS 68TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 30 |
| 類型： | 驅(qū)動器 |
| 驅(qū)動器/接收器數(shù)： | 1/0 |
| 電源電壓： | 3.14 V ~ 3.46 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-TQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 68-TQFN-EP（10x10） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1408 (CN2011-ZH PDF) |
MAX3802
Detailed Description
The MAX3802 has four independent adaptive equaliz-
ers (receivers) and four independent drivers. Dis-
connecting the power pins of unused equalizers and
drivers lowers the power consumption of the MAX3802.
Equalizer and driver descriptions apply to the four iden-
tical sections.
Cable Driver
The cable driver accepts differential or single-ended
CML input data at rates up to 3.2Gbps. The maximum
CML output of the driver can be adjusted over a typical
range of 445mV to 825mV by changing the value of the
RMOD_ resistor between 10k and 20k (resistor con-
nected between RMOD_ pin and ground).
Adaptive Cable Equalizer
The adaptive cable equalizer is capable of equalizing
differential or single-ended CML input data at rates up
to 3.2Gbps. It automatically adjusts to attenuation lev-
els of 30dB at 1.6GHz (due to skin-effect losses in cop-
per cable). The equalizer consists of a CML input
buffer, a flat-response amplifier, a skin-effect compen-
sation amplifier, a current-steering network, a dual
power-detector feedback loop, an output limiting ampli-
fier, and a CML output buffer (Figure 1).
General Theory of Operation
The shape of the power spectrum of a random bit
stream can be described by the square of the well-
known sinc function, where sinc(f) = sin(πf)/(πf) for f ≠ 0.
For sufficiently long bit patterns (nonrandom bit
stream), sinc2(f) is a good approximation. From the
shape of the sinc2(f) function, the ratio of the power
densities at any two frequencies can be estimated. The
MAX3802 adaptive equalizer employs this principle by
incorporating a feedback loop that continuously moni-
tors the power at high- and low-frequency bands and
3.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
8
_______________________________________________________________________________________
MAX3802
VARIABLE
ATTENUATOR
VARIABLE
ATTENUATOR
CURRENT-STEERING NETWORK
Σ
FLAT
RESPONSE
AMP
CML
SKIN-
EFFECT
COMP
AMP
|H(f)|
POWER
DETECTOR
EIN_
DOUT_
2
LOS_
CABLE
DRIVER
|H(f)|
√ f
RMOD_
RMOD_
2
DIN_
2
EOUT_
LIMITING
AMP
600MHz
PWR
DETECTOR
200MHz
PWR
DETECTOR
LOOP
FILTER
Figure 1. MAX3802 Functional Diagram
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參數(shù)描述 |
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| 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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