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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- The CM2009 connects between a video graphics controller embedded in a PC, graphics adapter card or set top box and the VGA or DVI-I port connector. The CM2009 incorporates ESD protection for all signals, level shifting for the DDC signals and buffering for the SYNC signals. ESD protection for the video, DDC and SYNC lines is implemented with low-capacitance current steering diodes. All ESD diodes are designed to safely handle the high current spikes specified by IEC-61000-4-2 Level 4 (±8KV contact discharge if C is present, ±4KV if not). The ESD protection for the DDC signal pins are designed to prevent ""back current"" when the device is powered down while connected to a monitor that is powered up. Separate positive supply rails are provided for the VIDEO, DDC and SYNC channels to facilitate interfacing with low voltage video controller ICs to provide design flexibility in multi-supply-voltage environments. Two non-inverting drivers provide buffering for the HSYNC and VSYNC signals from the video controller IC (SYNC1,SYNC2). These buffers accept TTL input levels and convert them to CMOS output levels that swing between Ground and V, which is typically 5V. Additionally, each driver has a series termination resistor (R) connected to the SYNC_OUT pin, eliminating the external termination resistors typically required for the HSYNC and VSYNC lines of the video cable. There are three versions with different values of RT to allow termination at typically 65Ω (CM2009-00) or 15Ω (CM2009-02). The 15Ω(CM2009-02) version will typically require two external resistors which can be chosen to exactly match the characteristic impedance of the SYNC lines of the video cable. Two N-channel MOSFETs provide the level shifting function required when the DDC controller is operated at a lower supply voltage than the monitor. The gate terminals for these MOSFETS (V) should be connected to the supply rail
- Features
- ---
- |
- Includes ESD protection, level-shifting, buffering and sync impedance matching
- 7 channels of ESD protection for all VGA port connector pins meeting IEC-61000-4-2 Level 4 ESD requirements (±8kV contact discharge)
- Very low loading capacitance from ESD protection diodes on VIDEO lines, 4pF maximum
- Bi-directional level shifting N-channel FETs provided for DDC_CLK & DDC_DATA channels
- 5V drivers for HSYNC and VSYNC lines
CM2009 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Case/Package | QSOP-16 |
| Capacitance | 4.5 pF |
| Max Repetitive Reverse Voltage (Vrrm) | 6V |
| Peak Pulse Power | 0.5 W |
| Max Reverse Leakage Current (Ir) | 10uA |
| Show | |
| Minimum Packing Quantity | 2500 |
Order guide
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- Delivery date: usually 2 to 7 working days.
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- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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