Best-in-class common mode filtering and ESD protection for MIPI and HDMI

PCMFxDFN1
Common mode
filter with integrated
ESD protection
Best-in-class common mode filtering and
ESD protection for MIPI and HDMI
Offering the largest bandwidth for common mode suppression, the PCMFxDFN1 devices
combine common mode filtering with strong system level ESD protection in a single
package. These devices address the need for new filtering concepts to minimize EMIemission and susceptibility from datalines due to the high level of integration, together
with high-speed data rates, in smartphones and tablets. As EMI issues can never be
planned in advance, the PCMF-series offers industry leading bandwidth for common mode
suppression covering all typical data rates and their higher harmonics.
Product types
`` PCMF2DFN1 protects and filters two differential line pairs
`` PCMF3DFN1 protects and filters three differential line pairs
Key Features
`` Industry leading common mode suppression
`` Best-in-class ESD protection due to deep snapback
`` Industry standard footprint
`` Very thin package: 0.5 mm maximum
Key benefits
`` Minimized EMI-emission and susceptibility saves
time-consuming searches for EMI-sources
`` Stronger system ESD robustness due to optimized SoC
protection
`` Shorter time-to-market due to minimized impact on signal
integrity and simplified ‘out-of-the-box‘ design
Key applications
`` MIPI Camera Serial Interface (CSI) and Display Serial
Interface (DSI) in smartphones, tablets / Mobile Internet
Devices (MIDs) and other portable devices
`` HDMI interfaces
Common Mode suppression performance
Scc21 (dB)
Scc21 (dB)
0
0
-5
-5
-10
-10
-15
-15
-20
-20
-25
-25
PCMFxDFN1
PCMFxDFN1
-30
-30
-35
1E7
1E8
freq (Hz)
1E9
8E9
-35
1E7
1E8
freq (Hz)
1E9
8E9
Comparison of PCMFxDFN1 CM suppression against
Comparison of PCMFxDFN1 CM suppression against
Ferrite- or Ceramic-based common mode filters
Silicon-based solutions from other suppliers
RF performance
aaa-007663
0.0
S21dd
(dB)
Compared to the whole field of ceramic and silicon-based
common mode filters, the PCMFxDFN1 devices offer a much
wider and deeper common mode suppression across the full
range of possible EMI frequencies and their higher harmonics.
-2.5
-5.0
-7.5
-10.0
106
107
108
109
f (Hz)
1010
PCMFxDFN1 – Differential Mode pass-band (S21dd)
HDMI compliance test eye diagram @ 3.4 Gb/s
MIPI eye diagram @ 1.5 Gb/s
With a 3 dB bandwidth > 2 GHz, the PCMFxDFN1 surpass the requirements for all MIPI D-PHY frequencies and passes the
compliance test for HDMI at full 3.4 Gb/s.
ESD protection performance
Efficient ESD protection is a requirement, since ESD pulses
enter the circuitry of portable applications through gaps like
the camera fitting and portable applications are constantly
exposed to ESD in the field. PCMFxDFN1 common mode
filters have an ESD ruggedness of 15 kV contact discharge
according to IEC61000-4-2. This is minimum discharge that the
protection device itself can survive. The protection provided
to the protected SoC is underlined by the very low dynamic
resistance of 0.6 Ohms. Additional stress is taken away from the
SoC by NXP‘s proven deep-snapback technology. As a result,
the system-level ESD protection provided by the PCMFxDFN1
devices surpasses all silicon-based common mode filters on
the market, which already deliver clamping voltages that are an
order of magnitude better than ceramic-based filters.
12
12
10
10
8
TLP current (A)
TLP current (A)
PCMF
Ferrite (Ceramic) device
6
Much better
4
8
better
6
4
PCMF
2
2
Silicon other supplier
0
0
0
100
200
300
TLP voltage (V)
400
500
600
0
5
10
15
20
TLP voltage (V)
PCMFxDFN1 offers a much better system-level ESD
PCMFxDFN1 offers a better system-level ESD protection
protection compared to Ceramic-based Common-Mode
compared to other Silicon-based Common-Mode filters
filters with ESD protection.
with ESD protection due to it‘s deep snapback and lower
dynamic resistance.
Package details
`` DFN2520-9 package, 2.5 x 2.0 mm2 for 2 differential
channels
`` DFN4020-14 package, 4.0 x 2.0 mm2 for 3 differential
channels
`` Height: 0.5 mm maximum
`` Industry standard footprint
PCMF2DFN1
PCMF3DFN1
Application diagrams for MIPI camera and display interfaces
PCMF2DFN1
(PCMF3DFN1)
MIPI LANE MODULE
CLK_P
CLK_N
FLEX FOIL
FLEX FOIL CONNECTOR
D0_P
D0_N
D1_P
D1_N
CAMERA
MODULE
SUPPLY AND
CONTROL
SYSTEM-ON-CHIP
(SoC)
aaa-007392
Using PCMF3DFN1 to filter and protect a MIPI CSI camera interface
PCMF3DFN1
CLK_P
CLK_N
D0_P
FLEX FOIL
LIQUID CRYSTAL
DISPLAY
(LCD)
D1_P
D1_N
FLEX FOIL CONNECTOR
MIPI LANE MODULE
D0_N
D2_P
D2_N
D3_P
D3_N
PCMF2DFN1
SYSTEM-ON-CHIP
(SoC)
SUPPLY,
CONTROL
AND BACKLIGHT
aaa-007393
Using PCMF2DFN1 and PCMF3DFN1 to filter and protect a MIPI DSI display interface
www.nxp.com
© 2013 NXP Semiconductors N.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
Date of release: June 2013
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and
Document order number: 9397 750 17427
may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof
Printed in the Netherlands
does not convey nor imply any license under patent- or other industrial or intellectual property rights.
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