MN838898

Color TFT LCD Driver MN838898 1. Type CMOS LSI source driver for color TFT LCD panels 2. Overview This LSI converts the digital display data from a personal computer, portable device, or other source into analog signals for driving a color TFT LCD panel. 3. Features (1) Power saving driver (2) Built in DA converter accepting 6-bit digital input (for 262,144 colors) (3) Choice of 360 and 324 drive outputs (4) Input data bus at pixel level (5) Choice of output data format: gray scale or binary (6) Eleven reference voltage inputs for producing 10 segment gamma adjustment graph. (7) Set output voltage inflection points at data values 00, 01, 07, 0F, 17, 1F, 27, 2F, 37, 3E, and 3F. (8) Prechargeless drive circuits (9) Support for serial cascade connections (10) Automatic internal clock stop after fixed number of data inputs (11) Choice of shift register shift direction: right or left (12) Gray scale data inversion available every clock cycle (13) Low voltage operation: 2.5 V (typ.) for logic circuits; 3.5 V (typ.) for analog circuits (14) Maximum operating clock frequency: 15 MHz (15) Power save function for cutting off current to outputs, fixing them at high impedance Publication date: August 2002 SDF00030AEM 1 MN838898 4. Internal Block Diagram YY1 YX1 YZ1 YX120 YZ120 YY120 AVDD2 AVSS2 AVDD1 AVSS1 Output circuits AVDD AVSS VREF 0 to 10 PS 6 MODE2 LD 6 6 6 6 6 360/324 11 DA converter Two line latches, 360/324 × 6 bits INV DX0 to 5 DY0 to 5 DZ0 to 5 6 6 6 Latch 6 ...