Rev. 2.1 May 2012
www.aosmd.com
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AOZ8808
Ultra-Low Capacitance TVS Diode
General Description
The AOZ8808 is a transient voltage suppressor array
designed to protect high speed data lines such as HDMI,
USB 3.0, MDDI, SATA, and Gigabit Ethernet from
damaging ESD events.
This device incorporates eight surge rated, low
capacitance steering diodes and a TVS in a single
package. During transient conditions, the steering diodes
direct the transient to either the positive side of the power
supply line or to ground.
The AOZ8808 provides a typical line-to-line capacitance
of 0.3 pF and low insertion loss up to 6 GHz providing
greater signal integrity making it ideally suited for
HDMI 1.3 or USB 3.0 applications, such as Digital TVs,
DVD players, computing, set-top boxes and MDDI
applications in mobile computing devices.
The AOZ8808 comes in a RoHS compliant and Halogen
Free 2.5 mm x 1.0 mm x 0.55 mm DFN-10 package and
is rated for -40 °C to +85 °C junction temperature range.
Features
ESD protection for high-speed data lines:
– IEC 61000-4-2, level 4 (ESD) immunity test
– Air discharge: ±15 kV; contact discharge: ±15 kV
– IEC61000-4-4 (EFT) 40 A (5/50 nS)
– IEC61000-4-5 (Lightning) 4 A (8/20 µS)
– Human Body Model (HBM) ±24 kV
Array of surge rated diodes with internal TVS diode
Small package saves board space
Protects four I/O lines
Low capacitance between I/O lines: 0.3 pF
Low clamping voltage
Low operating voltage: 3.3V, 5.0 V
Applications
HDMI, USB 3.0, MDDI, SATA ports
Monitors and flat panel displays
Set-top box
Video graphics cards
Digital Video Interface (DVI)
Notebook computers
Typical Applications
Figure 1. USB 3.0 Ports Figure 2. HDMI Ports
AOZ8808
AOZ8808
TX2+
TX2-
TX1+
TX1-
TX0+
TX0-
CLK+
CLK-
HDMI
Transmitter
RX2+
RX2-
RX1+
RX1-
RX0+
RX0-
CLK+
CLK-
HDMI
Receiver
Connector Connector
AOZ8808
AOZ8808
AOZ8802A
AOZ8808
D+
D-
SSRX+
SSRX-
SSTX+
SSTX-
USB 3.0
Transceiver
D+
D-
SSRX+
SSRX-
SSTX+
SSTX-
USB 3.0
Connector
