參數(shù)資料
型號(hào)： MAX4889AETO+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 14/14頁(yè)
文件大小： 0K
描述： IC SWITCH OCTAL SPDT 42TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 28
功能： 開關(guān)
電路： 8 x SPDT
導(dǎo)通狀態(tài)電阻： 7 歐姆
電壓電源： 單電源
電壓 - 電源，單路/雙路(±)： 1.65 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 42-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 42-TQFN-EP（3.5x9）
包裝： 管件
MAX4888A/MAX4889A
5.0Gbps PCI Express Passive Switches
_______________________________________________________________________________________
9
Detailed Description
The MAX4888A/MAX4889A high-speed passive switch-
es route PCIe data between two possible destinations.
The MAX4888A/MAX4889A are ideal for routing PCIe sig-
nals to change the system configuration. For example, in
a graphics application, the MAX4888A/MAX4889A create
two sets of eight lanes from a single 16-lane bus. The
MAX4888A/MAX4889A feature a single digital control
input (SEL) to switch signal paths.
The MAX4888A/MAX4889A are fully specified to oper-
ate from a single +3.0V to +3.6V power supply.
Digital Control Input (SEL)
The MAX4888A/MAX4889A provide a single digital con-
trol input (SEL) to select the signal path between the
COM__ and NO__/NC__ channels. The truth tables for
the MAX4888A/MAX4889A are depicted in the
Functional Diagrams/Truth Table section. Drive SEL rail-
to-rail to minimize power consumption.
Analog Signal Levels
The MAX4888A/MAX4889A accept standard PCIe sig-
nals to a maximum of V+ - 1.2V. Signals on the COM_+
channels are routed to either the NO_+ or NC_+ chan-
nels, and signals on the COM_- channels are routed to
either the NO_- or NC_- channels. The MAX4888A/
MAX4889A are bidirectional switches, allowing COM__,
NO__, and NC__ to be used as either inputs or outputs.
CAPACITANCE
METER
NC_ or
NO_
COM_
GND
SEL
VIL OR VIH
0.1
μF
+3.3V
V+
MAX4888A/MAX4889A
Figure 4. Channel Off-/On-Capacitance
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED BETWEEN ANY TWO PAIRS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
+3.3V
VOUT
V+
SEL
NC_
COM_
NO_
VIN
MAX4888A/MAX4889A
OFF-ISOLATION = 20log
VOUT
VIN
ON-LOSS = 20log
VOUT
VIN
CROSSTALK = 20log
VOUT
VIN
NETWORK
ANALYZER
50
Ω
50
Ω
50
Ω
50
Ω
MEAS
REF
0.1
μF
0V OR V+
50
Ω
GND
Figure 3. On-Loss, Off-Isolation, and Crosstalk
Test Circuits/Timing Diagrams (continued)
Contact factory if operating at +2.5V or +1.8V.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4889AETO+ 功能描述:多路器開關(guān) IC 5.0Gbps PCI Express Passive Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4889AETO+T 功能描述:多路器開關(guān) IC 5.0Gbps PCI Express Passive Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4889AETO-T 功能描述:模擬開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX4889AEVKIT+ 功能描述:交換機(jī) IC 開發(fā)工具 MAX4889/9A Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評(píng)估:MAX4984E 工作電源電壓:2.8 V to 5.5 V
MAX4889BETO+ 功能描述:多路器開關(guān) IC 2.5/5.0/8.0Gbps PCIe Passive Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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