BU2507FV Optical disc ICs 10bit 6-channel D/A converter BU2507FV BU2507FV is an IC that incorporates 10bit 6-channel D/A converter using the R-2R system. Each channel output incorporates a Rail to Rail type output with buffer amplifier. This IC utilizes the TTL level input method. RESET pin can keep the output voltage in the lower reference voltage range. zApplications DVD, CD-R, CD-RW, DVC, Digital camera, and other industrial equipments. zFeatures 1) High-performance 10bit 6-channel D/A converter adopting the R-2R system. 2) Power supply voltage : 4.5~5.5V. 3) Each channel output incorporates a Rail to Rail type output with buffer amplifier. 4) RESET pin can keep output voltage of all channels within the lower reference voltage range. 5) Digital input compatible with TTL levels. 6) 10MHz input frequency. 7) 14bit 3wire serial data + RESET signal input. (4bit address + 10bit data) zAbsolute maximum ratings (Ta=25°C) Symbol Limits Unit Supply voltage Parameter VCC −0.3~+6.0 V Upper reference voltage of D/A converter VDD −0.3~+6.0 V Input voltage VIN −0.3~+6.0 V VOUT −0.3~+6.0 Pd 350 Output voltage Power dissipation ∗ V mW Operating temperature Topr −25~+85 °C Storage temperature Tstg −55~+125 °C ∗ Operating at higher than Ta=25°C, 3.5mW shall be redused per 1°C. zRecommended operating conditions (Ta=25°C) Parameter Power supply voltage Symbol Limits Unit VCC 4.5~5.5 V 1/3 BU2507FV Optical disc ICs zBlock diagram GND AO1 DI CLK LD AO6 Vcc 14 13 12 11 10 9 8 14bit shift register 10bit R-2R D/A converter D0 1 2 3 4 5 6 7 8 9 D10 1112 13 CH1 D/A 6 Adress Decoder 10bit Latch L 10bit Latch CH2 L 3 10bit R-2R D/A converter L 4 D/A L 5 D/A D/A Buffer Operational Amplifier 1 2 3 4 5 6 7 Vss (VrefL) AO2 AO3 Reset AO4 AO5 VDD (VrefH) 2/3 BU2507FV Optical disc ICs zPin descriptions Pin No. Analog / Digital Pin name I/O Function Equivalent Circuit 1 Vss Analog − D/A converter lower reference voltage (VrefL) input terminal 6 2 Ao2 Analog O 10bit D/A converter output terminal (CH2) 4 3 Ao3 Analog O 10bit D/A converter output terminal (CH3) 4 4 Reset Digital I The analog output of all channels is fixed for "L" 2 5 Ao4 Digital O 10bit D/A converter output terminal (CH4) 4 6 Ao5 Analog O 10bit D/A converter output terminal (CH5) 4 7 VDD Analog − D/A converter upper reference voltage (VrefH) input terminal 5 8 Vcc − − Power supply terminal − 9 Ao6 Analog O 10bit D/A converter output terminal (CH6) 4 10 LD Digital I When H-level signal is input to this terminal, the value stored in 14-bit shift register is loaded in decoder and D/A converter output register 1 11 CLK Digital I Shift clock input terminal. Input signal at DI pin is input to 14-bit shift register at rise of shift clock pulse 1 12 DI Digital I Serial data input terminal to input 14-bit (address 4 bit + deta 10bit) long serial data 1 13 Ao1 Analog O 10bit D/A converter output terminal (CH1) 4 14 GND − − GND terminal − zExternal dimensions (Unit : mm) 5.0±0.2 8 1 7 1.15±0.1 0.1 6.4±0.3 4.4±0.2 0.3Min. 14 0.65 0.15±0.1 0.1 0.22±0.1 SSOP-B14 3/3 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0