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Features
The CM2020 and CM2021 provide
ESD protection for 12 data lines and feature the industry's lowest
channel capacitance at 0.9pF (typ) and 1.2pF (max). In addition,
these devices boast tight intrapair matching of the internal diodes,
to within 0.05pF, resulting in very low intrapair skew, critical
for HDMI compliance. Signal attenuation at 1080p HDTV resolutions
(750MHz) is less than 0.1dB, and signal attenuation at the maximum
HDMI frequency of 1.65GHz is less than 1dB.
CM2020 Insertion Loss vs. Frequency
The internal layout of MediaGuard™
devices has been designed to minimize inductance as well as capacitance,
resulting a self-resonance frequency beyond 5 GHz.
Other key features and benefits include:
- IEC61000-4-2
Level 4 protection (8kV contact, 15kV air discharge);
- Multi-strike
capability to withstand > 1000 ESD strikes without performance
degradation;
- Very
fast sub 1nS response time;
- Low
9V clamp voltage;
- Ultra-low
capacitance on TMDS lines:
- 0.9
pF I/O to ground capacitance (industry’s lowest capacitance
diode arrays);
- 1.2
pF maximum capacitance;
- 0.05
pF intrapair capacitance matching;
- Self-resonance
frequency at 5.5 GHz with attenuation < 1dB at highest data
frequencies.
The CM2020 is intended for use on transmitter
port interfaces such as those found on DVD recorders and set top
boxes. This devices includes overcurrent output protection and
back drive protection. The CM2021 is intended for receiver applications
such as digital TVs and includes backdrive protection.
Product
Applications
Applications for these devices includes PCs,
consumer electronics, set top boxes, displays and digital television.
Availability
The
CM2020 and CM2021 are available in a space saving 38-pin TSSOP
package. They are currently in production. Pricing starts at $1.39
each in 1,000 units for the CM2020, and at $1.29 each in 1,000
units for the CM2021.
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