BU1425AK Datasheet | ROHM

Features - 1) Input clocks supported 27.0 / 13.5MHz 28.636 / 14.318MHz 28.375 / 14.1875MHz 35.4695 / 17.73475MHz 2) 24-bit RGB and 16-bit YUV input signals are supported. 3) Both master and slave systems are supported. 4) 9-bit high-speed DAC is used for DAC output of posite VIDEO, Y, and C signals. 5) Internal 8-color OSD output function is provided. 6) FSC-TRAP on the Y channel can be turned on and off. 7) C channel is equipped with an internal chrominance band-pass filter in addition to the U.V. lowpass filter. 8) 5V single power supply, low power consumption (0.4W typ.) 9) Y and C output can be turned off (the power consumption with Y and C off is 0.25W typ.). 10) In the Master mode, applying 3.3V to the I / O VDD and 5.0V to other VDDs produces HSY and VSY output with an amplitude of 3.3V. This enables direct connection to LSIs that use a power supply voltage of 3.3V. (The clock output for the OSD has a fixed amplitude of 5.0V.) 11) In the Slave mode, applying voltage to the I / O VDD only, and applying 0V to other VDDs, enables a current consumption of 0 even when RGB DATA, HSY, VSY, and OSD DATA are in the active state. Multimedia ICs BU1425AK / BU1425AKV - Block diagram OSDSW GOSD ROSD BOSD RGB 24BITS OSD PALETTE DAC Y-FILTER RD GD / Y BD / UV LATCH RGB to YUV Y-LEVEL ADJ UV FILTER CHROMA GEN C-FILTER MIX SIG and sync burst V Y C VOUT YOUT COUT VCLK RSTB VIDEO TIMING CONTROL PIXCLK SYNC BLANK HSY SUB CARRIER BURST GENERATOR BURST VSY MODE CONTROL FIELD / FLAME CONTROL YFILONB [1.0] CDGSWB PAL60B TEST12 CLKSW IM [0.1] ADDH Multimedia ICs BU1425AK / BU1425AKV - Pin descriptions Pin No. Pin name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 BOSD GD0 / Y0 GD1 / Y1 GD2 / Y2 GD3 / Y3 GD4 / Y4 GD5 / Y5 GD6 / Y6 GND GD7 / Y7 BD0 / UV0 BD1 / UV1 BD2 / UV2 BD3 / UV3 OSDSW CDGSWB BD4 / UV4 BD5 / UV5 BD6 / UV6 BD7 / UV7 GND NTB IM0 IM1 TEST1 TEST2 VSY HSY PIXCLK VDD IOVDD INT Function OSD BLUE DATA...