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參數(shù)資料
| 型號： | MAX3872EGJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Multirate Clock and Data Recovery with Limiting Amplifier |
| 中文描述： | CLOCK RECOVERY CIRCUIT, QCC32 |
| 封裝： | 5 X 5 MM, 0.90 MM HEIGHT, MO-220, QFN-32 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 580K |
| 代理商： | MAX3872EGJ |
Input Terminations
The SDI
±
and SLBI
±
inputs of the MAX3872 are current-
mode logic (CML) compatible. The inputs all provide
internal 50
termination to reduce the required number
of external components. AC-coupling is recommended.
See Figure 8 for the input structure. For additional infor-
mation on logic interfacing, refer to Maxim Application
Note HFAN 1.0:
Introduction to LVDS, PECL, and CML.
Output Terminations
The MAX3872 uses CML for its high-speed digital out-
puts (SDO
±
and SCLKO
±
). The configuration of the out-
put circuit includes internal 50
back terminations to
V
CC
. See Figure 9 for the output structure. CML outputs
can be terminated by 50
to V
CC
, or by 100
differen-
tial impedance. For additional information on logic inter-
facing, refer to Maxim Application Note HFAN 1.0:
Introduction to LVDS, PECL, and CML.
Applications Information
Clock Holdover Capability
Clock holdover is required in some applications in
which a valid clock must be provided to the upstream
device in the absence of data transitions. To provide
this function, an external reference clock signal must
be applied to the SLBI
±
inputs and the proper control
signals set (see the
Modes of Operation
section). To
enter holdover mode automatically when there are no
transitions applied to the SDI
±
inputs,
LOL
or the sys-
tem
LOS
can be directly connected to
LREF
.
System Loopback
The MAX3872 is designed to allow system loopback
testing. When the device is set for system loopback
mode, the serial output data of a transmitter may be
directly connected to the SLBI inputs to run system
diagnostics. See Table 1 for selecting system loopback
operation mode. While in system loopback mode,
LREF
should not be connected to
LOL
.
M
Multirate Clock and Data Recovery
with Limiting Amplifier
______________________________________________________________________________________
11
50
50
V
CC
SDI-
SDI+
MAX3872
Figure 8. CML Input Model
MAX3872
SDO-
SDO+
V
CC
50
50
Figure 9. CML Output Model
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MAX3872EGJ-T | 功能描述:計時器和支持產(chǎn)品 Multirate Clock & Data Recovery RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX3872ETJ+ | 功能描述:計時器和支持產(chǎn)品 Multirate Clock & Data Recovery RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX3872ETJ+T | 功能描述:計時器和支持產(chǎn)品 Multirate Clock & Data Recovery RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX3872EVKIT | 功能描述:計時器和支持產(chǎn)品 Evaluation Kit for the MAX3872 MAX3874 RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX3873AEGP | 功能描述:計時器和支持產(chǎn)品 2.5/2.7Gbps Clk-Reco & Data-Retiming IC RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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