BU38803 Datasheet - Rohm

BU38803 System control servo

Pin No. 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 33 34 35 36 37 38 39 40 Pin name VSAD ADC0 ADC1 ADC2 ADC3 ADC4 ADC5 ADC6 ADC7 VDAD DFGOUT DFGIN DPGIN CFGIN CFGOUT VSSA Vref CTLAMP * CTLAMPOUT CTL * CTL + VDDA RESETB TEST PO5 PO4 P31 P30.

Video ICs System control servo BU38603 / BU38703 / BU38803 The BU38603, BU38703 and BU38803 are servo controller ICs for VCRs. They contain a high-speed, 8-bit CPU and perform the processing required for the drum, capstan, FV and PV completely in software, allowing a large reduction in the number of external components required. They also contain high-performance linear amplifiers, eliminating the need for interface ICs. Specialized hardware is included for items that require high-speed process.

BU38803 Features

* 1) CPU 499 commands (69 types) Memory-mapped I / O Minimum command execution time: 250ns (8MHz) 2)ROM capacity BU38603: 16384 × 8 bit BU38703: 24576 × 8 bit BU38803: 32768 × 8 bit 3) RAM capacity: 512 × 8bit 4) Interrupt Pattern generator: 1 Watch-dog timer: 1 External interrupts: 1 FG int

BU38803_Rohm.pdf