Mobile imaging has entered the era of “full focal length + high pixel.” For instance, the 200MP telephoto lens of the vivo X300 Pro and the ultra-large bottom main camera of the Huawei Pura 80 have become standard features for flagships, raising users’ expectations for “effortlessly stunning photos” ever higher. Mobile phone functionality has reached new heights; today’s phones must not only be equipped with HD screens (with many models featuring dual-screen designs) and high-resolution cameras with tens or even hundreds of millions of pixels, but also adhere to the design principle of being “light and compact.” This leads to a critical issue: mobile phone screens (such as LCD or OLED) and camera CMOS sensors must connect to the baseband controller via flexible PCBs or long-trace PCBs, and these cross-device lines have become a “disaster zone” for interference.
With the significant increase in data transmission frequencies (e.g., the clock frequencies for mobile phone displays and camera CMOS sensors have reached hundreds of MHz), on one hand, the internal flexible connection lines of the phone are highly susceptible to interference from wireless signals (such as GSM/CDMA band signals); on the other hand, they themselves easily become sources of radiated electromagnetic interference/radio frequency interference (EMI/RFI) or conducted electrostatic discharge (ESD). Due to the broadband nature of the digital signal spectrum, the frequency of digital harmonic signals may completely overlap with the mobile phone’s wireless signal reception frequency bands. The radiated noise generated in these bands may reduce the sensitivity of the mobile phone’s wireless signal reception. In addition, EMI can破坏 video signal integrity, causing screen stuttering and image noise. ESD can directly damage the baseband controller, causing camera crashes or focus failure, which is more easily triggered in dry environments or after frequent plugging and unplugging of data cables.
Faced with the dual challenge of EMI & ESD, the traditional solution—discrete RC filters—not only occupies PCB space but also only achieves narrowband attenuation, making it unsuitable for high-frequency transmissions above 40MHz. This necessitates a filter product that can balance the three core needs of “small size, high attenuation, and strong protection.” JY Electronics has launched the TFR0506L, an integrated RC low-pass filter with TVS based on IPD (Integrated Passive Device) technology, truly achieving a perfect balance between “small size” and “high performance.”
JY Electronics TFR0506L Product Advantages
01. Integrated Packaging Design
It adopts a standard π-type filter structure and integrates electrostatic discharge protection functionality, featuring an ultra-small package size (DFN2415-12L: 2.4 mm × 1.5 mm × 0.5 mm). Compared to traditional discrete designs, it reduces the number of components and space occupation on the circuit board, saving 80% of PCB space, which contributes to the miniaturization and lightweight design of electronic products. Furthermore, this product is Pin-to-Pin fully compatible with STMicroelectronics’ (ST) EMIF06-1005M12 series and can be directly interchanged.
*JY Electronics TFR0506L Circuit Diagram and Pin Schematic*
02. Excellent Protection Performance
(1) The integrated TVS can quickly respond to electrostatic discharge events, clamping transient voltages to a safe level (under 8/20μs waveform testing: 11V@4A). Compared to competing products, it has stronger discharge capability and lower clamping voltage, providing better protection for the back-end circuit.
*8/20μs Waveform Test Results*
*TLP Test Results Comparison*
(2) TFR0506L possesses high ESD withstand capability, able to endure the impact of 25kV contact discharge and 25kV air discharge under IEC 61000-4-2 testing. Compared to the competing product EMIF06-1005M12, the ESD capability is improved by approximately 70%, effectively preventing circuit damage caused by static electricity.
*ESD Test Results Comparison*
03. Efficient EMI Filtering Function
Within the frequency range of 900MHz to 1.8GHz, the attenuation reaches -30dB (f=0.9GHz~1.8GHz, αIL=-30dB), effectively isolating various types of EMI interference (such as GSM/CDMA band signals).
*Insertion Loss from Input to Output and S-parameter Test Results Simulating Crosstalk*
From entry-level to high-end flagship models, from single-screen phones to multi-screen foldables, and from 10MP cameras to 100MP imaging systems, Jingyang’s new integrated RC low-pass filter with TVS, TFR0506L, offers precise adaptation. It not only solves the interference challenges of high-frequency signals but also balances ESD protection and space optimization, allowing the hardware performance of mobile phones to truly materialize, bringing users smoother display effects and clearer photography experiences.In the future, with the popularization of new scenarios such as dual-screen collaborative shooting for foldable phones and AR real-world navigation, EMI & ESD interference issues will become more prominent. JY Electronics will continue to iterate its technology to launch low-pass filter products that are even more adapted to multi-scenario needs.
……………………………………………………………………Company Profile……………………………………………………………………
JY Electronics serves a global customer base across the automotive, industrial & power, computing, consumer, and mobile & wearables industries. Our extensive product portfolio includes Schottky diodes, TVS and ESD protection devices, MOSFETs, LDOs, power ICs, battery protection & segment driver ICs, industrial & automotive-grade sensors, high-side switches (HSD), current sensors, and automotive switch input chips. We are committed to continuous innovation, delivering high-quality products that empower our customers to develop energy-efficient and sustainable solutions.
For samples or a quotation, please contact us at market@jy-electronics.com.cn.
