Overview
The IP4786CZ32, produced by NXP USA Inc., is a highly integrated protection IC designed to safeguard High-Definition Multimedia Interface (HDMI) transmitter host interfaces. This component is crucial for ensuring the reliability and performance of HDMI connections in various consumer and computing electronics.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | 32-pin HVQFN leadless package |
| ESD Protection | ±12 kV contact ESD protection, exceeding IEC 61000-4-2 level 4 standard |
| Overcurrent/Overvoltage Protection | 5 V overcurrent/overvoltage protection with up to 6.5 V inputs |
| TMDS Bit Rate | 6.0 Gbps (600 Mcsc TMDS Character Rate) compatible |
| Display Modes | Supports UHD 4k (2160p) 60 Hz display modes |
| DDC and CEC Buffering | DDC and CEC buffering and decoupling, compatible with standard CMOS or LVTTL I/O cells down to 1.8 V |
| Hot Plug Detect | Internal hot plug detect module |
| Transmission Line Clamping | TLC technology on TMDS lines to simplify routing and reduce impedance discontinuities |
Key Features
- HDMI 2.0 and all backward compatible standards are supported
- Impedance matched 100 Ω differential transmission line ESD protection for TMDS lines (±10 Ω)
- Simplified flow-through routing utilizing less overall PCB space
- DDC capacitive decoupling between system side and HDMI connector side and buffering to drive cable with high capacitive load (> 700 pF/25 m)
- Hot plug detect module and CEC buffering and isolation with integrated backdrive-protected 26 kΩ pull-up
- Robust ESD protection without degradation after repeated ESD strikes
- Highest integration in a small footprint, optimized RF routing
Applications
- Standard-Definition (SD) and High-Definition (HD) DVD players
- Set-top boxes
- PC graphic cards
- Game consoles
- HDMI picture performance quality enhancer modules
- Digital Visual Interface (DVI)
Q & A
- What is the primary function of the IP4786CZ32?
The primary function of the IP4786CZ32 is to protect High-Definition Multimedia Interface (HDMI) transmitter host interfaces from overcurrent, overvoltage, and electrostatic discharge (ESD). - What type of ESD protection does the IP4786CZ32 offer?
The IP4786CZ32 offers ±12 kV contact ESD protection, exceeding the IEC 61000-4-2 level 4 standard. - What is the maximum TMDS bit rate supported by the IP4786CZ32?
The IP4786CZ32 supports up to 6.0 Gbps (600 Mcsc TMDS Character Rate). - Does the IP4786CZ32 support UHD 4k display modes?
Yes, the IP4786CZ32 supports UHD 4k (2160p) 60 Hz display modes. - What is the purpose of the hot plug detect module in the IP4786CZ32?
The hot plug detect module simplifies the application of the HDMI transmitter to control the hot plug signal. - How does the IP4786CZ32 handle DDC and CEC signals?
The IP4786CZ32 buffers and decouples DDC and CEC signals, allowing the use of longer or cheaper HDMI cables with higher capacitance. - What is the package type of the IP4786CZ32?
The IP4786CZ32 comes in a 32-pin HVQFN leadless package. - Is the IP4786CZ32 compatible with HDMI 2.0 and earlier standards?
Yes, the IP4786CZ32 is compatible with HDMI 2.0 and all backward compatible standards. - What is the benefit of using Transmission Line Clamping (TLC) technology in the IP4786CZ32?
The TLC technology simplifies routing and helps reduce impedance discontinuities on the TMDS lines. - In what types of devices is the IP4786CZ32 typically used?
The IP4786CZ32 is typically used in devices such as DVD players, set-top boxes, PC graphic cards, game consoles, and HDMI picture performance quality enhancer modules.
