UNISONIC TECHNOLOGIES CO., LTD CCVGA7C9 Preliminary TVS VGA OR DVI-I PORT COMPANION CIRCUIT DESCRIPTION The UTC CCVGA7C9 is an ESD solution for the VGA or DVI-I port connector. This device integrates 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. 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 VCC_SYNC, which is typically 5V. Additionally, each driver has a series termination resistor (RT) 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 (UTC CCVGA7C9−00) or 15Ω (UTC CCVGA7C9−02). 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 the MOSFETs (VCC_DDC) should be connected to the supply rail (typically 3.3 V) that supplies power to the transceivers of the DDC controller. All ESD diodes are designed to safely handle the high current spikes specified by IEC-61000-4-2 Level 4 (±8kV contact discharge if CBYP 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. FEATURES * 7 Channels of ESD protection for all VGA port connector pins meeting IEC-61000-4-2 Level 4 ESD requirements (±8kV contact discharge) * Includes ESD protection, level-shifting, buffering and sync impedance matching * Very low loading capacitance from ESD protection diodes on VIDEO lines (4pF maximum) * 5V drivers for HSYNC and VSYNC lines * Integrated impedance matching resistors on sync lines * Bi-directional level shifting N-Channel FETs provided for DDC_CLK & DDC_DATA channels * Backdrive protection on DDC lines ORDERING INFORMATION Ordering Number Lead Free Halogen Free CCVGA7C9L-R16-T CCVGA7C9G-R16-T CCVGA7C9L-R16-R CCVGA7C9G-R16-R www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd Package Packing SSOP-16 SSOP-16 Tube Tape Reel 1 of 6 QW-R223-015.a CCVGA7C9 Preliminary PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME 1 VCC_SYNC 2 VCC_VIDEO 3 4 5 6 7 VIDEO_1 VIDEO_2 VIDEO_3 GND VCC_DDC 8 BYP 9 10 11 12 13 14 15 16 DDC_OUT1 DDC_IN1 DDC_IN2 DDC_OUT2 SYNC_IN1 SYNC_OUT1 SYNC_IN2 SYNC_OUT2 TVS DESCRIPTION This is an isolated supply input for the SYNC_1 and SYNC_2 level shifters and their associated ESD protection circuits. This is a supply pin specifically for the VIDEO_1, VIDEO_2 and VIDEO_3 ESD protection circuits. Video signal ESD protection channel. This pin is typically tied one of the video lines between the VGA controller device and the video connector. Ground. This is an isolated supply input for the DDC_1 and DDC_2 level-shifting N-FET gates. This input is Using a 0.2uF bypass capacitor will increase the ESD robustness of the system. DDC signal output. Connects to the video connector side of one of the sync lines DDC signal input. Connects to the VGA controller side of one of the sync lines. DDC signal output. Connects to the video connector side of one of the sync lines. Sync signal buffer input. Connects to the VGA controller side of one of the sync lines. Sync signal buffer output. Connects to the video connector side of one of the sync lines. Sync signal buffer input. Connects to the VGA controller side of one of the sync lines. Sync signal buffer output. Connects to the video connector side of one of the sync lines. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R223-015.a CCVGA7C9 Preliminary TVS BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R223-015.a CCVGA7C9 Preliminary TVS ABSOLUTE MAXIMUM RATING PARAMETER VCC_VIDEO, VCC_DDC and VCC_SYNC Supply Voltage Inputs SYMBOL RATINGS UNIT VCC_VIDEO, VCC_DDC, VCC_SYNC [GND-0.5]~+6.0 V ESD Diode Forward Current (One Diode Conducting at a Time) 10 mA VIDEO_1, VIDEO_2, VIDEO_3 [GND-0.5]~[VCC_VIDEO+0.5] V DDC_IN1, DDC_IN2 [GND-0.5]~6.0 V DC Voltage at Inputs DDC_OUT1, DDC_OUT2 [GND-0.5]~6.0 V SYNC_IN1, SYNC_IN2 [GND-0.5]~[VCC_SYNC+0.5] V Operating Temperature Range TOPR -40~+85 °C Storage Temperature TSTG -40~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Note 1) PARAMETER SYMBOL VCC_VIDEO Supply Current ICC_VIDEO VCC_DDC Supply Current ICC_DDC VCC_SYNC Supply Current ICC_SYNC ESD Diode Forward Voltage Logic High Input Voltage Logic Low Input Voltage Logic High Output Voltage Logic Low Output Voltage SYNC Driver Output Resistance (CCVGA7C9−00 only) SYNC Driver Output Resistance (CCVGA7C9−02 only) Logic High Output Voltage (CCVGA7C9−02 only) Logic Low Output Voltage (CCVGA7C9−02 only) Input Current VIDEO Inputs SYNC_IN1, SYNC_IN2 Inputs Level Shifting N−MOSFET ”OFF” State Leakage Current Voltage Drop Across Level-Shifting N-MOSFET when “ON” VIDEO Input Capacitance (Note 3) SYNC Driver L => H Propagation Delay VF VIH VIL VOH VOL ROUT ROUT VOH−02 VOL−02 IIN IOFF VON CIN_VID tPLH TEST CONDITIONS VCC_VIDEO=5.0V, VIDEO Inputs at VCC_VIDEO or GND VCC_DDC=5.0V VCC_SYNC=5V, SYNC Inputs at GND or VCC_SYNC, SYNC Outputs Unloaded VCC_SYNC=5V, SYNC Inputs at 3.0 V, SYNC Outputs Unloaded IF=10mA VCC_SYNC=5.0V, (Note 2) VCC_SYNC=5.0V, (Note 2) IOH=0mA, VCC_SYNC=5.0V, (Note 2) IOL=0mA, VCC_SYNC=5.0V, (Note 2) VCC_SYNC=5.0V, SYNC Inputs at GND or 3.0V VCC_SYNC=5.0V, SYNC Inputs at GND or 3.0V, (Note 2) IOH=24mA, VCC_SYNC=5.0V, (Note 2) TYP MAX UNIT 10 μA 10 μA 50 μA 2.0 mA 1.0 V V V V V 2.0 0.6 4.85 0.15 65 Ω 15 Ω 2.0 V IOL=24mA, VCC_SYNC=5.0V, (Note 2) 0.8 V VCC_VIDEO=5.0V, VIN=VCC_VIDEO or GND VCC_SYNC=5.0V, VIN=VCC_SYNC or GND (VCC_DDC - VDDC_IN)≤0.4V, VDDC_OUT=VCC_DDC (VCC_DDC - VDDC_OUT)≤0.4V, VDDC_IN = VCC_DDC ±1 ±1 μA μA 10 μA 10 μA VCC_DDC=2.5V, VS=GND, IDS=3mA 0.18 V VCC_VIDEO=5.0V, VIN=2.5V, f=1MHz VCC_VIDEO=2.5V, VIN=1.25V, f=1MHz 4 4.5 pF pF CL=50pF, VCC=5.0V, Input tR and tF≤5ns 12 ns UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 4 of 6 QW-R223-015.a CCVGA7C9 Preliminary TVS ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT SYNC Driver H => L Propagation tPHL CL=50pF, VCC=5.0V, Input tR and tF≤5ns 12 ns Delay SYNC Driver Output Rise & Fall tR, tF CL=50pF, VCC=5.0V, Input tR and tF≤5ns 4 ns Times ESD Withstand Voltage (Note 3) VESD VCC_VIDEO=VCC_SYNC=5V ±8 kV Notes: 1. All parameters specified over standard operating conditions unless otherwise noted. 2. These parameters apply only to the SYNC drivers. Note that ROUT=RT + RBUFFER. 3. The SYNC_OUT pins on the UTC CCVGA7C9-02 are guaranteed for 2kV HBM ESD protection. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R223-015.a CCVGA7C9 Preliminary TVS TYPICAL APPLICATION CIRCUIT VF VF VF Notes: 1. The UTC CCVGA7C9 should be placed as close to the VGA or DVI−I connector as possible. 2. The ESD protection channels VIDEO_1, VIDEO_2, VIDEO_3 may be used interchangeably between the R, G, B signals. 3. If differential video signal routing is used, the RED, BLUE, and GREEN signal lines should be terminated with external 37.5Ω resistors. 4. “VF” are external video filters for the RGB signals. 5. The DDC level shifters DDC_IN, DDC_OUT, may be used interchangeably between DDCA_CLK and DDCA_DATA. 6. The SYNC buffers may be used interchangeably between HSYNC and VSYNC. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R223-015.a