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| 型號(hào)： | MAX9176EUB+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER 2:1 670MHZ 10UMAX |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | * |
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MAX9176/MAX9177
670MHz LVDS-to-LVDS and
Anything-to-LVDS 2:1 Multiplexers
10
______________________________________________________________________________________
CHARGE-CURRENT
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
Cs
100pF
RC
1M
RD
1.5k
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 9. Human Body Test Model
CHARGE-CURRENT
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
Cs
150pF
RC
50
TO 100
RD
330
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
Figure 10. IEC 61000_4-2 Contact Discharge Test Model
Applications Information
Power-Supply Bypassing
Bypass the VCC pin with high-frequency surface-mount
ceramic 0.1F and 0.001F capacitors in parallel as
close to the device as possible, with the smaller valued
capacitor closest to VCC.
Differential Traces
Input and output trace characteristics affect the perfor-
mance of the MAX9176/MAX9177. Use controlled-
impedance differential traces (100
typical). To reduce
radiated noise and ensure that noise couples as com-
mon mode, route the differential input and output sig-
nals within a pair close together. Reduce skew by
matching the electrical length of the two signal paths
that make up the differential pair. Excessive skew can
result in a degradation of magnetic field cancellation.
Maintain a constant distance between the differential
traces to avoid discontinuities in differential impedance.
Minimize the number of vias to further prevent imped-
ance discontinuities.
Cables and Connectors
Interconnect for LVDS typically has a controlled differ-
ential impedance of 100
. Use cables and connectors
that have matched differential impedance to minimize
impedance discontinuities.
Avoid the use of unbalanced cables such as ribbon or
simple coaxial cable. Balanced cables such as twisted
pair offer superior signal quality and tend to generate
less EMI due to magnetic field canceling effects.
Balanced cables pick up noise as common mode,
which is rejected by the LVDS receiver.
Termination
The MAX9176/MAX9177 require external input and out-
put termination resistors. For LVDS, connect an input
termination resistor across each differential input and at
the far end of the interconnect driven by the LVDS out-
put. Place the input termination resistor as close to the
receiver input as possible. Termination resistors should
match the differential impedance of the transmission
line. Use 1% surface-mount resistors.
The MAX9176/MAX9177 feature an integrated differen-
tial output resistor. This resistor reduces jitter by damp-
ing reflections produced by any mismatch between the
transmission line and termination resistor at the far end
of the interconnect.
Board Layout
Separate the differential and single-ended signals to
reduce crosstalk. A four-layer printed circuit board with
separate layers for power, ground, differential signals,
and single-ended logic signals is recommended.
Separate the differential signals from the logic signals
with power and ground planes for best results.
IEC 61000-4-2 Level 4 ESD Protection
The IEC 61000-4-2 standard (Figure 10) specifies ESD
tolerance for electronic systems. The IEC61000-4-2
model specifies a 150pF capacitor that is discharged
into the device through a 330
resistor. The MAX9176/
MAX9177 differential inputs and outputs are rated for
IEC61000-4-2 level 4 (
±8kV Contact Discharge and
±15kV Air-Gap Discharge). The Human Body Model
(HBM, Figure 9) specifies a 100pF capacitor that is dis-
charged into the device through a 1.5k
resistor.
IEC 61000-4-2 level 4 discharges higher peak current
and more energy than the HBM due to the lower series
resistance and larger capacitor.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9177 | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:670MHz LVDS-to-LVDS and Anything-to-LVDS 2:1 Multiplexers |
| MAX9177ETB | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:670MHz LVDS-to-LVDS and Anything-to-LVDS 2:1 Multiplexers |
| MAX9177EUB | 制造商:Maxim Integrated Products 功能描述:670MHZ LVDS-TO-LVDS AND ANYTHING"-TO-LVDS2:" - Rail/Tube |
| MAX9177EUB+ | 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)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 |
| MAX9177EUB+T | 功能描述:多路器開(kāi)關(guān) IC 670MHz LVDS-to-LVDS & X-LVDS 2:1 MUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)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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