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參數(shù)資料
| 型號(hào)： | MAX3802UGK |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver |
| 中文描述： | QUAD LINE DRIVER, QCC68 |
| 封裝： | 10 X 10 MM, 0.90 MM HEIGHT, MO-220, QFN-68 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大小： | 830K |
| 代理商： | MAX3802UGK |
M
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
R
MOD_
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(
π
f)/(
π
f) for f
≠
0.
For sufficiently long bit patterns (nonrandom bit
stream), sinc
2
(f) is a good approximation. From the
shape of the sinc
2
(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
CML
CML
CML
SKIN-
EFFECT
COMP
AMP
|H(f)|
POWER
DETECTOR
EIN_
DOUT_
2
2
LOS_
CABLE
DRIVER
|H(f)|
√
f
RMOD_
R
MOD_
2
DIN_
2
EOUT_
LIMITING
AMP
6
P
2
P
LOOP
FILTER
Figure 1. MAX3802 Functional Diagram
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| MAX3803 | DC-Coupled, UCSP 3.125Gbps Equalizer |
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| MAX3804 | 12.5Gbps Settable Receive Equalizer |
| MAX3804ETE | 12.5Gbps Settable Receive Equalizer |
| MAX3805 | 10.7Gbps Adaptive Receive Equalizer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3802UTK+D | 功能描述:IC EQUALIZE CABLE 3.2GBPS 68TQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:驅(qū)動(dòng)器 驅(qū)動(dòng)器/接收器數(shù):4/0 規(guī)程:RS422 電源電壓:4.5 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| MAX3802UTK+TD | 功能描述:IC EQUALIZE CABLE 3.2GBPS 68TQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,240 系列:GD 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):3/5 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:20-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:20-PDIP 包裝:管件 |
| 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 |
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