G3212 Global Mixed-mode Technology Low Capacitance VGA 2:2 Dual-Graphics Crossover Switch Features General Description The G3212 integrates high-bandwidth analog switches, level-shifting buffers and level-translating FET switches. The device implements a complete 2:2 dual-graphics crossover solution for VGA signal switching. The G3212 provides 12 very high-frequency 700MHz SPST switches for RGB signals, 4 low- frequency clamping switches for the Display Data Channel(DDC) signals, 2 pairs of level-shifting buffers for the HSYNC and VSYNC signals, and also integrated extended ESD protection. The G3212 is used to select one of two sources to either of two destinations within a laptop computer. Low ON-Resistance 5Ω (Typical), RGB Signal Low supply Current <5µA (Max) High Bandwidth, 700MHz (Typical), RGB DDC Level Shifting, Isolation with Internal Pullup Termination, and Protection Horizontal and Vertical Sync Level Shifting and Buffering Inputs Compatible with VL, Outputs TTL Compatible Source/Sink ±10mA on Each SH_, SV_ Output Independent Selectable Logic Inputs For Switching High ESD Protection on Outputs: ±15kV HBM ESD ±6kV IEC 61000-4-2 Contact Discharge TQFN 5x5 40 pins Package with Exposed Pad Horizontal and vertical synchronization (SH_/SV_) inputs feature level-shifting buffers to support lowvoltage controllers and standard 5V TTL-level monitors. DDC, consisting of SDA_ and SCL_, are FET switches that protect the low-voltage VGA source from potential damage from high-voltage presence on the monitor while reducing capacitive load. Applications Notebook Computer-Switchable Graphics All 14 output terminals of the G3212feature high-ESD protection to ±15kV Human Body Model (HBM) and ±6kV IEC 61000-4-2 Contact. All other pins are protected to ±2kV HBM. Ordering Information ORDER NUMBER MARKIN G G3212RG1U 3212 Note: RG: TQFN5X5-40 1: Bonding Code U: Tape & Reel TEMP. RANGE PACKAGE (Green) -40°C to 85°C TQFN5X5-40 The G3212 is available in the TQFN5X5-40 package with exposed pad. RED1 GRN1 BLU1 33 32 31 SV1 36 SCL1 SH1 37 SDA1 S11 38 34 S10 39 35 S01 40 Pin Configuration S00 1 30 EN 2 29 VCC SHA 3 28 SH2 27 SV2 26 SCL2 SVA 4 SCLA 5 SDAA 6 REDA Thermal Pad GND 16 17 18 19 20 REDB GRNB BLUB GND VCC SDAB 21 15 10 SCLB BLU2 GND 14 GRN2 22 SVB 23 9 13 8 BLUA SHB GRNA 11 RED2 12 24 VL SDA2 7 NC 25 G3212 TQFN5X5-40 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.2 Mar 07, 2012 1