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參數(shù)資料
| 型號： | MAX3802 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver |
| 中文描述： | 3.2Gbps四路、自適應(yīng)電纜均衡器，帶有電纜驅(qū)動器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 830K |
| 代理商： | MAX3802 |
M
factors. See the
Typical Operating Characteristics
Cable
Driver Output Voltage vs. R
MOD
for typical values.
Cable Integrity Monitor
The CIM_ output voltage is directly proportional to the
output current of the loop amplifier (which controls the
current-steering network; see
Detailed Description
).
This is an analog voltage output that indicates the
amount of equalization being applied.
The amount of equalization (and thus the CIM_ output
level) is affected by cable type, cable length, signal
bandwidth, etc. See the
Typical Operating Char-
acteristics
CIM Voltage vs. Cable Length for typical val-
ues under specific conditions.
Loss-of-Signal (
LOS_
) Output
Loss of signal is indicated by the
LOS_
output. A low
level on
LOS_
indicates that the equalizer input power
has dropped below a threshold. When there is suffi-
cient input voltage to the channel (typically greater than
250mV),
LOS_
is high. The
LOS_
output is suitable for
indicating problems with the transmission link caused
by, for example, a broken cable or a defective driver.
Data Spectrum for Equalizer
The MAX3802 equalizer design requires the data
stream be scrambled or coded to provide a rich fre-
quency spectrum for the adaptation algorithm.
Scrambled patterns or coded patterns with scrambled
content, such as 64b/66b or SONET PRBS, are ideal.
Some coded patterns, such as 8b/10b, lack low-fre-
quency energy and can be nonoptimal, requiring the
user to characterize the specific application. In the
absence of an input signal (nonstandard application),
amplified noise may appear at the output due to the
large gain of the device.
Single-Ended Operation
For single-ended operation of the cable driver or equal-
izer, connect the unused input to ground through a
series combination of a capacitor (of equal value to
other AC-coupling capacitors) and a 50
resistor. Note
that the MAX3802 is specified for differential operation.
Layout Considerations
The MAX3802
’
s performance can be significantly
affected by circuit board layout and design. Use good
high-frequency design techniques, including minimiz-
ing ground inductance and using controlled-imped-
ance transmission lines for the high-frequency data
signals. Power-supply decoupling capacitors should be
placed as close as possible to V
CC
.
Exposed-Pad Package
The EP on the 68-pin QFN provides a very low thermal
resistance path for heat removal from the IC. The pad is
the electrical ground on the MAX3802 and must be sol-
dered to the circuit board ground for proper thermal and
electrical performance. Refer to Maxim Application Note
HFAN-08.1,
Thermal Considerations for QFN and Other
Exposed-Pad Packages
(available at www.maxim-
ic.com) for additional application information.
Chip Information
TRANSISTOR COUNT: 5408
PROCESS: Bipolar (silicon germanium)
3.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
10
______________________________________________________________________________________
MAX3802
V
CCD
1
DOUT1-
RMOD1
V
CCE
1
EOUT1+
EOUT1-
V
CCE
1
DIN1+
LOS1
DIN1-
V
CCD
1
DOUT1+
CIM1
V
CCE
1
EIN1+
EIN1-
V
CCE
1
11
10
9
8
7
6
5
4
3
2
16
15
14
13
12
1
17
E
QFN*
V
C
2
V
C
2
E
V
C
2
C
E
E
R
V
C
2
D
V
C
2
V
C
2
D
D
23
22
21
20
19
27
26
25
24
18
29
28
32
31
30
D
34
33
*THE EXPOSED PAD OF THE QFN PACKAGE MUST BE SOLDERED TO GROUND
FOR PROPER THERMAL AND ELECTRICAL OPERATION OF THE MAX3802.
L
38
37
EIN3+
EIN3-
V
CCE
3
39
40
41
42
44
45
46
47
DOUT3+
DOUT3-
V
CCD
3
RMOD3
V
CCE
3
EOUT3+
EOUT3-
V
CCE
3
CIM3
V
CCE
3
35
36
48
V
CCD
3
49
50
DIN3+
DIN3-
51
LOS3
58
59
60
61
62
54
55
56
57
63
D
TOP VIEW
V
C
4
R
V
C
4
E
E
V
C
4
C
V
C
4
E
52
53
E
V
C
4
64
D
65
66
67
D
D
V
C
4
68
L
Pin Configuration
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3802UGK | 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver |
| MAX3803 | DC-Coupled, UCSP 3.125Gbps Equalizer |
| MAX3803UBP-T | DC-Coupled, UCSP 3.125Gbps Equalizer |
| MAX3804 | 12.5Gbps Settable Receive Equalizer |
| MAX3804ETE | 12.5Gbps Settable Receive Equalizer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3802EVKIT | 制造商:Maxim Integrated Products 功能描述:3.2GBPS QUAD ADAPTIVE CABLE EQUALIZER WITH CA - Bulk |
| 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)動器 驅(qū)動器/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 |
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