参数资料
型号: MAX9249GCM/V+
厂商: Maxim Integrated Products
文件页数: 24/36页
文件大小: 0K
描述: IC SERIALIZER GMSL LVDS 48TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 250
功能: 串行器
数据速率: 2.5Gbs
输入类型: LVDS
输出类型: 串行
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 48-TQFN 裸露焊盘
供应商设备封装: 48-TQFP(7x7)
包装: 管件
30 _____________________________________________________________________________________
MAX9249
Gigabit Multimedia Serial Link
Serializer with LVDS System Interface
Table 11. Suggested Connectors and Cables for GMSL
Board Layout
Separate the digital signals and CML/LVDS high-speed
signals to prevent crosstalk. Use a four-layer PCB with
separate layers for power, ground, CML/LVDS, and
digital signals. Layout PCB traces close to each other
for a 100I differential characteristic impedance. The
trace dimensions depend on the type of trace used
(microstrip or stripline). Note that two 50I PCB traces
do not have 100I differential impedance when brought
close together—the impedance goes down when the
traces are brought closer.
Route the PCB traces for a CML/LVDS channel (there
are two conductors per CML/LVDS channel) in parallel to
maintain the differential characteristic impedance. Avoid
vias. Keep PCB traces that make up a differential pair
equal length to avoid skew within the differential pair.
ESD Protection
The MAX9249 ESD tolerance is rated for Human Body
Model, IEC 61000-4-2, and ISO 10605. The ISO 10605
and IEC 61000-4-2 standards specify ESD tolerance for
electronic systems. CML/LVDS I/O are tested for ISO
10605 ESD protection and IEC 61000-4-2 ESD protec-
tion. All pins are tested for the Human Body Model. The
Human Body Model discharge components are CS =
100pF and RD = 1.5kI (Figure 25). The IEC 61000-4-2
discharge components are CS = 150pF and RD = 330I
(Figure 26). The ISO 10605 discharge components are
CS = 330pF and RD = 2kI (Figure 27).
Figure 25. Human Body Model ESD Test Circuit
Figure 26. IEC 61000-4-2 Contact Discharge ESD Test Circuit
Figure 27. ISO 10605 Contact Discharge ESD Test Circuit
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
1MI
RD
1.5kI
CS
100pF
CS
150pF
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
RD
330I
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
RD
2kI
CS
330pF
VENDOR
CONNECTOR
CABLE
JAE Electronics, Inc.
MX38-FF
A-BW-Lxxxxx
Nissei Electric Co., Ltd.
GT11L-2S
F-2WME AWG28
Rosenberger Hochfrequenztechnik GmbH
D4S10A-40ML5-Z
Dacar 538
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