MAX14885E Datasheet | Maxim Integrated

19-5143; Rev 1; 1/12 EVAALVUAAILTAIOBNLEKIT Low-Capacitance VGA 2:2 Dual-Graphics Crossover Switch General Description The MAX14885E integrates high-bandwidth analog switches, level-translating buffers, and level-translating FET switches. The device implements a plete 2:2 dual-graphics crossover solution for VGA signal switching. The MAX14885E provides 12 very high-frequency 700MHz (typ) SPST switches for RGB signals, four lowfrequency clamping switches for display data channel (DDC) signals, two pairs of level-translating buffers for the HSYNC and VSYNC signals, and integrated extended ESD protection. The MAX14885E is used to select one of two sources to either of two destinations (see the Typical Operating Circuit) within a laptop puter. Horizontal and vertical synchronization (SH_/SV_) inputs feature level-shifting buffers to support low-voltage 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. All 14 output terminals of the MAX14885E feature high ESD protection to Q15k V Human Body Model (HBM) and Q6k V IEC 61000-4-2 Contact Discharge (see the Pin Description). All other pins are protected to Q2k V HBM. The MAX14885E is specified over the extended -40NC to +85NC temperature range, and is available in a 40-pin TQFN (5mm x 5mm) package. Features S Low Quiescent Current ≤ 5µA (max) S Low 5I (typ) On-Resistance (RGB Signals) S High Bandwidth, 700MHz (typ), RGB S DDC Level Shifting, Isolation with Internal Pullup Termination, and Protection S Horizontal and Vertical Sync Level Shifting and Buffering S Inputs patible with VL, Outputs TTL patible S Source/Sink ±10m A on Each SH_, SV_ Output S Independent Selectable Logic Inputs for Switching S High ESD Protection on Outputs ±15k V ESD HBM ±6k V IEC 61000-4-2 Contact Discharge S Small, 40-Pin TQFN (5mm x...