RClamp0524J
PROTECTION PRODUCTS
PRELIMINARY
Applications Information
Design Recommendations for HDMI Protection
8
7
GND
6
5
Adding external ESD protection to HDMI ports can be
challenging. First ESD protection devices have an
inherent junction capacitance. However, adding even a
small amount of capacitance will cause the impedance
of the differential pair to drop. Second, large packages
and land pattern requirements cause discontinuities
1
2
GND
3
4
that adversely affect signal integrity. The
RClamp0524J is specifically designed for protection of
high-speed interfaces such as HDMI. They present
<0.3pF capacitance between the pairs while being
rated to handle >±8kV ESD contact discharges
(>±15kV air discharge) as outlined in IEC 61000-4-2.
Each device is in a leadless SLP package that is less
than 1.1mm wide. They are designed such that the
traces flow straight through the device. The narrow
package and flow-through design reduces
P i n
1 , 2 , 3 , 4
5 , 6 , 7 , 8
G N D
I d e n t i f i c a t i o n
I n p u t L i n e s
O u t p u t L i n e s
( N o I n t e r n a l C o n n e c t i o n )
G r o u n d
discontinuities and minimizes impact on signal integrity.
This becomes even more critical as signal speeds
increase.
Pin Configuration
Figure 1 is an example of how to route the high speed
differential traces through the RClamp0524J. The
solid line represents the PCB trace. The PCB traces
are used to connect the pin pairs for each line (pin 1 to
SLP2710P8 Pin Configuration (Top View)
pin 8, pin 2 to pin 7, pin 3 to pin 6, pin 4 to pin 5). For
example, line 1 enters at pin 1 and exits at Pin 8 and
the PCB trace connects pin 1 and 8 together. This is
12
11
10
1
true for lines connected at pins 2, 3, and 4 also.
Ground is connected at the center tabs. One large
ground pad should be used in lieu of two separate
pads.
9
8
7
GND
GND
1
TDR Measurements for HDMI
The combination of low capacitance, small package, and
6
5
4
flow-through design means it is possible to use these
devices to meet the HDMI impedance requirements of
100 Ohm ±15% without any PCB board modification.
Figures 3 and 4 show impedance test results for a TDR
risetime of 200ps and 100ps respectively, using a
3
2
1
GND
GND
Semtech evaluation board with 100 Ohm traces through-
out. Measurements were taken using a TDR method as
outlined in the HDMI Compliance Test Specification
(CTS). In each case, the device meets the HDMI CTS
Figure 1. Flow through Layout Using
p0524J
R Clamp052 4J
? 2011 Semtech Corp.
5
www.semtech.com
相关PDF资料
RCLAMP0524P.TCT TVS ARRAY SLP2510P8 10-PIN
RCLAMP0524S.TCT TVS ARRAY 150W 5V 4CH SOT-23-6
RCLAMP0544M.TBT IC TVS ARRAY FOR HDMI 10-MSOP
RCLAMP0554S.TCT TVS DIODE 5V 375W SOT23-6L
RCLAMP2502L.TBT TVS ARRAY 800W 2.5V 2CH 8-SOIC
RCLAMP2504P.TCT TVS ARRAY SLP1616P6 6-PIN
RCLAMP3304N.TCT IC TVS ARRAY 4-LINE 3.3V 10-SLP
相关代理商/技术参数
RCLAMP0524P 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low Capacitance TVS Arrays
RCLAMP0524P.TCT 功能描述:TVS ARRAY SLP2510P8 10-PIN RoHS:是 类别:过电压,电流,温度装置 >> TVS - 二极管 系列:RailClamp® 产品目录绘图:SMB 600 Watt Top SMB 600 Watt Side 1 SMB 600 Watt Side 2 标准包装:10 系列:- 电压 - 反向隔离(标准值):25.6V 电压 - 击穿:28.5V 功率(瓦特):600W 电极标记:单向 安装类型:表面贴装 封装/外壳:DO-214AA,SMB 供应商设备封装:SMB 包装:剪切带 (CT) 产品目录页面:2386 (CN2011-ZH PDF) 其它名称:P6SMB30AT3GOSCT
RCLAMP0524P.TCT -S 制造商:SEMTECH 功能描述:ESD Protection for HDMI Interface
RCLAMP0524P.TCT 制造商:Semtech Corporation 功能描述:TVS Diode Array IC
RCLAMP0524P.TCT-CUT TAPE 制造商:SEMTECH 功能描述:RCLAMP Series 15 V 0.3 pF SMT Ultra-Low Capacitance TVS Diode Array - SLP-2510P8
RCLAMP0524PA 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low Capacitance TVS Arrays
RCLAMP0524PA.TCT 功能描述:TVS RoHS:是 类别:过电压,电流,温度装置 >> TVS - 二极管 系列:RailClamp® 产品目录绘图:SMB 600 Watt Top SMB 600 Watt Side 1 SMB 600 Watt Side 2 标准包装:10 系列:- 电压 - 反向隔离(标准值):25.6V 电压 - 击穿:28.5V 功率(瓦特):600W 电极标记:单向 安装类型:表面贴装 封装/外壳:DO-214AA,SMB 供应商设备封装:SMB 包装:剪切带 (CT) 产品目录页面:2386 (CN2011-ZH PDF) 其它名称:P6SMB30AT3GOSCT
RCLAMP0524PATCT 制造商:Semtech Corporation 功能描述:ESD Suppressor Diode Arrays 制造商:Semtech Corporation 功能描述:TVS 制造商:Semtech Corporation 功能描述:RCLAMP Series 15 V 0.4 pF Transient Voltage Suppressor Array - SLP2510P8 制造商:Semtech Corporation 功能描述:ESD Suppressor Diode Arrays ±17KV 10-Pin SLP-P T/R