BU38603 ROHM Co. Ltd., BU38603 Datasheet
BU38603
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BU38603 Summary of contents
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... 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 ...
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... Recommended operating conditions Parameter Symbol Power supply voltage Clock frequency Operating temperature Topr • Block diagram PO0-PO5 P1-P31 SCK (P0) ADC0-ADC7 COUNTP PBCTL V ref 2 BU38603 / BU38703 / BU38803 Limits Unit 0 DAD V – 500 – 125 DAD Limits Unit 4 ...
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... PO3 Parallel output and pattern generator output 38 VHSW Pattern generator VHSW output 39 AHSW Pattern generator AHSW output 40 HAMPSW Head amplifier switch output BU38603 / BU38703 / BU38803 Pin No. Pin name Function 41 CHROT Chroma rotary switch output 42 FV Pseudo Vsync output 43 V Logic circuit power supply ...
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... E L Input high level voltage V ADPH Input low level voltage V ADPL Input high level current I ADPH Input low level current I ADPL 4 BU38603 / BU38703 / BU38803 = 5V and f DD Min. Typ. Max. Unit — load, when reset I = 2mA: except pins 4.0 4.5 — ...
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... Video ICs • Measurement circuits 1k 1k IclkI xtal B C Iclko BU38603 / BU38703 / BU38803 SW1 TEST pin A 62 SW2 Itest A B SW3 Fig.1 Idad Idda Idd ...
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... Video ICs Iadin A SW1 • Application example Serial bus CSYNC Pseudo VSYNC Count pulse 6 BU38603 / BU38703 / BU38803 TEST pin (2- Fig.3 Capstan control Drum control Control 8MHz PWM Interrupt CPU ROM / RAM Head amplifier · ...
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... TEMPERATURE Fig. 8 Linear circuit current. • External dimensions (Units: mm) 24.0 0.3 20.0 0 0.35 0.1 0.8 QFP80 BU38603 / BU38703 / BU38803 5 4.9 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4 – 30 – TEMPERATURE Fig. 6 Logic “H” output voltage. 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 – 30 – 10 ...