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參數(shù)資料
| 型號： | MAX4951BECTP+TGH7 |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RE-DRIVER SATA I/SATA 20-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | 轉(zhuǎn)接驅(qū)動器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | SATA I / SATA II |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-TQFN-EP（4x4） |
| 包裝： | 帶卷 (TR) |
MAX4951
Detailed Description
The MAX4951 consists of two identical buffers that take
SATA input signals and return them to full output levels.
This device functions up to 6.0Gbps for next-generation
SATA applications.
Input/Output Terminations
Inputs and outputs are internally 50
terminated to VCC
(see the
Functional Diagram/Truth Table) and must be
AC-coupled to the SATA controller IC and SATA device
for proper operation.
Out-Of-Band Logic
The MAX4951 provides full Out-Of-Band (OOB) signal
support through high-speed amplitude detection cir-
cuitry. SATA OOB differential input signals of 50mVP-P
or less are detected as OFF and not passed to the out-
put. This prevents the system from responding to
unwanted noise. SATA OOB differential input signals of
150mVP-P or more are detected as ON and passed to
the output. This allows OOB signals to transmit through
the MAX4951. The time for the amplitude detection cir-
cuit to detect an inactive SATA OOB input and squelch
the associated output, or detect an active SATA OOB
input and enable the output, is less than 5ns.
Enable Input
The MAX4951 features an active-high enable input (EN).
EN has an internal pulldown resistor of 70k
(typ). When
EN is driven low or left unconnected, the MAX4951
enters low-power standby mode and the buffers are dis-
abled. Drive EN high for normal operation.
Output Boost Selection Inputs
The MAX4951 has two digital control logic inputs, BA
and BB. BA and BB have internal pulldown resistors of
70k
(typ). BA and BB control the boost level of their
corresponding buffers (see the
Functional Diagram/
Truth Table). Drive BA or BB low or leave unconnected
for standard SATA output levels. Drive BA or BB high to
boost the output. The boosted output level compen-
sates for attenuation from longer trace-length cables or
to meet eSATA specifications.
Applications Information
Figure 3 shows a typical application circuit with the
MAX4951 used to drive an eSATA output. The diagram
assumes that the MAX4951 is close to the SATA host
controller. BB is set low to drive standard SATA levels
to the host, and BA is set high to drive eSATA levels to
the device. If the MAX4951 is further from the controller,
set BB high to compensate for attenuation.
SATA I/SATA II Bidirectional Re-Driver
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
HAP
Noninverting Input from Host Channel A
2
HAM
Inverting Input from Host Channel A
3, 13, 17,
18, 19
GND
Ground
4
HBM
Inverting Output to Host Channel B
5
HBP
Noninverting Output to Host Channel B
6, 10, 16,
20
VCC
Positive Supply Voltage Input. Bypass VCC to GND with 0.1F and 0.001F capacitors in parallel and as
close to the device as possible.
7EN
Active-High Enable Input. Drive EN low to put device in standby mode. Drive EN high for normal operation.
EN is internally pulled down.
8BB
Channel-B Boost Enable Input. Drive BB high to enable channel-B output boost. Drive BB low for standard
SATA output level. BB is internally pulled down.
9BA
Channel-A Boost Enable Input. Drive BA high to enable channel-A output boost. Drive BA low for standard
SATA output level. BA is internally pulled down.
11
DBP
Noninverting Input from Device Channel B
12
DBM
Inverting Input from Device Channel B
14
DAM
Inverting Output to Device Channel A
15
DAP
Noninverting Output to Device Channel A
—EP
Exposed Pad. Internally connected to GND. EP must be electrically connected to a ground plane for proper
thermal and electrical operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4951BEVKIT+ | 功能描述:緩沖器和線路驅(qū)動器 eSATA Re-Driver EVKIT RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MAX4951CCTP+ | 功能描述:緩沖器和線路驅(qū)動器 6Gbps SATA Bidirecti onal Redriver with I RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MAX4951CCTP+GH7 | 功能描述:緩沖器和線路驅(qū)動器 SATA I/II/III Bidirectional Redriver with Input Equalization and Preemphasis RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MAX4951CCTP+T | 功能描述:緩沖器和線路驅(qū)動器 6Gbps SATA Bidirecti onal Redriver with I RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MAX4951CCTP+TGH7 | 功能描述:緩沖器和線路驅(qū)動器 SATA I/II/III Bidirectional Redriver with Input Equalization and Preemphasis RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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