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參數(shù)資料
| 型號(hào)： | MAX4986ETO+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MUX/DEMUX SAS/SATA 42TQFN |
| 標(biāo)準(zhǔn)包裝： | 240 |
| 功能： | 多路復(fù)用器/多路分解器 |
| 電路： | 1 x 2:1 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 3.3V |
| 電流 - 電源： | 145mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
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SAS/SATA Single Lane 2:1/1:2 Multiplexer/
Demultiplexer Plus Redriver with Equalization
MAX4986
10
Detailed Description
The MAX4986 is an active 2:1/1:2 multiplexer/demul-
tiplexer designed to equalize and redrive SAS/SATA
(Enterprise Class, SATA _X) or SATA-only signals up to
6.0Gbps.
Input/Output Terminations
Inputs and outputs are internally 50I terminated to VCC
and must be AC-coupled using low-ESR, X7R, 10nF
capacitors to the SAS/SATA controller IC and SAS/SATA
device for proper operation.
Enable Inputs (EN, EN)
The MAX4986 features both an active-high enable input
(EN) and an active-low enable input (EN). EN has an
internal pulldown resistor of 330kI (typ), and EN has an
internal pullup resistor of 330kI (typ). When EN is driven
low or left unconnected, or when EN is driven high or
left unconnected, the MAX4986 enters reduced power
standby mode and the redrivers are disabled. In standby
mode, supply current is reduced to 350FA (typ). Drive
EN high and EN low for normal operation. See Table
1. EN is useful as an automated cable-detect. See the
Typical Application Circuits.
Active Input/Output Select (SEL1, SEL2)
SEL1 selects the active output for channel 1 and SEL2
selects the active input for channel 2. Drive SEL1 or
SEL2 low or leave unconnected to activate A inputs or
outputs. Drive SEL1 or SEL2 high to activate B inputs
or outputs. See Table 2. SEL1 and SEL2 have internal
pulldown resistors of 330kI (typ).
Programmable Output Preemphasis
(OUTPE, PEA, PEB)
The MAX4986 features independent output preemphasis
capable of providing 3dB preemphasis on each channel.
When OUTPE, PEA, or PEB are driven low or left uncon-
nected, the corresponding output has no preemphasis.
When OUTPE, PEA, or PEB are driven high, the cor-
responding output has 3dB preemphasis. See Table 3.
OUTPE, PEA, and PEB have internal pulldown resistors
of 330kI (typ). Output preemphasis should be used
when driving long traces or cables.
Programmable Input Equalization
(INEQ, EQA, EQB)
The MAX4986 features independent input equalization
capable of providing 4dB of high-frequency equalization
on each channel. When INEQ, EQA, or EQB are driven
low or left unconnected, the corresponding input has no
equalization. When INEQ, EQA, or EQB are driven high,
the corresponding input has 4dB equalization. See Table 4.
INEQ, EQA, and EQB have internal pulldown resistors of
330kI (typ). Input equalization should be used for long
traces or cables.
Table 1. Standby Mode
Table 3. Output Preemphasis
Table 2. Active Input/Output Select
X = Don’t care.
EN
STATUS
0
X
Reduced Power Standby
X
1
Reduced Power Standby
1
0
Active
SEL1
SEL2
ACTIVE OUTPUT
ACTIVE INPUT
X
0
X
INAP/INAM
X
1
X
INBP/INBM
0
X
OUTAP/OUTAM
X
1
X
OUTBP/OUTBM
X
OUTPE
PEA
PEB
OUTP/OUTM
OUTAP/OUTAM
OUTBP/OUTBM
0
X
0dB
X
1
X
3dB
X
0
X
0dB
X
1
X
3dB
X
0
X
0dB
X
1
X
3dB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4986ETO+ | 功能描述:多路器開關(guān) IC SAS/SATA 2:1/1:2 MUX/DeMUX 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 |
| MAX4986ETO+T | 功能描述:多路器開關(guān) IC SAS/SATA 2:1/1:2 MUX/DeMUX 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 |
| MAX4986EVKIT+ | 功能描述:交換機(jī) IC 開發(fā)工具 MAX4986 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 |
| MAX4987AEETA+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE-PROTECTION CONTROLLER W - Rail/Tube |
| MAX4987AEETA+T | 功能描述:電源開關(guān) IC - 配電 Overvoltage-Protect Controller RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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