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SATAULC6-2M6-SATAULC6-2P6
Ultra Low capacitance 2 lines ESD protection
December 2008 Rev 1 1/12
T AULC6-2M6T AULC6-2P6Ultra low capacitance ESD protection
Features 2-line ESD protection (at 15 kV air and contact
discharge, exceeds IEC 61000-4-2) Protects VBUS when applicable Ultra low capacitance: 0.9 pF @ 825 MHz Fast response time SOT-666 and µQFN packages RoHS compliant
Benefits ESD protection of VBUS when applicable Optimized rise and fall times for maximum data
integrity Large bandwidth to minimize impact on data
signal quality Consistent differential signal balance: Ultra low impact on intra- and inter-pair
skew Matching high bit rate SATA, DVI, HDMI
and IEEE 1394 requirements Low PCB space occupation - 1.45 mm2
for µQFN Low leakage current for longer operation of
battery powered devices Higher reliability offered by monolithic
integration Designed for go-through layout
Complies with these standards IEC 61000-4-2 level 4 15 kV air discharge 8 kV contact discharge MIL STD883G-Method 3015-7
Applications SATA port up to 3 Gb/s DVI and HDMI ports up to 1.65 Gb/s IEEE 1394a and b (Firewire) ports up to
1.6 Gb/s USB 2.0 ports up to 480 Mb/s (Hi-Speed),
backwards compatible with USB 1.1 low and
full speed Ethernet port: 10/100/1000 Mb/s SIM card protection Video line protection Portable electronics
DescriptionThe SATAULC6-2x6 is a monolithic, application
specific discrete device dedicated to ESD
protection of high speed interfaces.
Its very low line capacitance secures a high level
of signal integrity. The device topology provides
this integrity without compromising the complete
protection of ICs against the most stringent ESD
strikes.
Characteristics SATAULC6-2M6, SATAULC6-2P62/12
1 Characteristics
Figure 1. Functional diagram
Table 2. Electrical characteristics (Tamb = 25 °C)
SATAULC6-2M6, SATAULC6-2P6 Characteristics 3/12
Figure 2. Line capacitance versus frequency
(typical values) SATAULC6-2M6
Figure 3. Line capacitance versus frequency
(typical values) SATAULC6-2P6
Figure 4. Attenuation (typical values)
SATAULC6-2M6
Figure 5. Attenuation (typical values)
SATAULC6-2P6
Figure 6. Eye diagram at 1.5 Gbps
PCB + SATAULC6-2M6
Figure 7. Eye diagram at 1.5 Gbps
PCB + SATAULC6-2P6
Characteristics SATAULC6-2M6, SATAULC6-2P64/12
Figure 8. Eye diagram at 1.5 Gbps
PCB only
Figure 9. Eye diagram at 3.0 Gbps
PCB only
Figure 10. Eye diagram at 3.0 Gbps
PCB + SATAULC6-2M6
Figure 11. Eye diagram at 3.0 Gbps
PCB + SATAULC6-2P6
SATAULC6-2M6, SATAULC6-2P6 Application example 5/12
2 Application example
Figure 12. SATA application using a go-through layout
Recommendation on PCB assembly SATAULC6-2M6, SATAULC6-2P66/12
Recommendation on PCB assembly
3.1 Stencil opening design General recommendation on stencil opening design
a) Stencil opening dimensions: L (Length), W (Width), T (Thickness)
Figure 13. Stencil opening dimensionsb) General design rule
Stencil thickness (T) = 75 ~ 125 µm
2. Reference design
a) Stencil opening thickness: 100 µm
b) Stencil opening for leads: Opening to footprint ratio is 90%.
Figure 14. Recommended stencil window position (µQFN only)Aspect Ratio W----- 1.5≥=
Aspect Area LW×L W+ ()---------------------------- 0.66≥=
