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| www..com BU2370FV Multimedia ICs VCO + phase comparator for TV BU2370FV BU2370FV is a VCO+phase comparator IC used to construct PLL system. Adopting external LPF and divider can generate the PLL system and low jitter clocks. Output can be switched into half. Applications TV External dimensions (Unit : mm) 5.0 0.2 1.15 0.1 6.4 0.3 4.4 0.2 0.1 14 8 Features 1) VCO can oscillate output (20MHz to 60MHz) 2) High-speed edge trigger type phase comparator 3) Can control VCO, and phase comparator independently 4) 3.3V signal power supply 5) Small SSOP-B14 package 1 7 0.15 0.1 0.65 0.1 0.22 0.1 SSOP-B14 Absolute maximum ratings (Ta=25C) Parameter Symbol VDD VIN Tstg Pd Limits -0.5 to +7.0 -0.5 to VDD+0.5 -30 to +125 350 Unit V V C mW Power supply voltalge Inpuit voltage Operating temperature range Power dissipation An operation is not guranteed. Derating : 3.5mW/C for operation above Ta=25C. Radiation resistance design is not used. Power dissipation is measured when BU2370FV is placed on the board. Recommended operating conditions Parameter Power supply voltage Input H voltage range Input L voltage range Operating temperature Output load Symbol VDD VIH VIL Topr CL Min. 3.15 0.8VDD 0 -20 Typ. Max. 3.45 VDD 0.2VDD 70 15 Unit V V V C pF - - - - - - 0.3Min. 1/5 www..com Multimedia ICs Block diagram OUT VDD Frequency Input1 1/2 OUT VSS Level Shifter Frequency Input2 VCO Output VCO Powerdown and Output VCO VDD Phase Detecter DVDD VCO VSS VCO DVSS Pmos VCO Control input Force DC Nmos Phase Detect Ouput Phase Detect Output-Enable VCO Select BU2370FV 2/5 www..com BU2370FV Multimedia ICs Pin descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin name Out VDD Out GND VCO OUT VCO VDD VCO GND VCO IN FSEL1 PDE PD OUT DGND DVDD VCOE FIN-A FIN-B VDD for VCO-OUT GND for VCO-OUT VCO output VCO analog VDD VCO analog GND VCO control Pin VCO collect H : 30[MHz/V] L : 15[MHz/V] PD control pin H : PD Disable (Hi impedance) L : PD Enable PD output Digital GND for PD Digital VDD for PD VCO control Pin H : VCO out Disable ( output L fix) L : VCO out Enable PD input PD input Functions 3/5 www..com BU2370FV Multimedia ICs Input / output circuits Pin No. Equivalent circuit Output PIN (Pin 3 ) From inside IC Output PIN (Pin 9) From inseide IC From inseide IC Input PIN (Schmitt triger) (Pin 7, 8, 12, 13, 14) To inside IC Input PIN (Pin 6) 4/5 www..com BU2370FV Multimedia ICs Electrical characteristics (Unless otherwise noted,Ta=25C, VCC=3.3V) Parameter Operating current consumption VCO Input control voltage range (Pin 6) Input H voltage (Pin 6) Input L voltage (Pin 6) Max.oscillation frequency 1 Max.oscillation frequency 2 Min.oscillation frequency 1 Min.oscillation frequency 2 Frequency sensitivity 1 Frequency sensitivity 2 Output duty Rise-time Fall-time Symbol Min. - 1 -0.1 -0.1 30 60 - - - - 45 - - Typ. 20 - 0 0 - - - - 15 30 50 2.5 2.5 Max. - 3 0.1 0.1 - - 15 30 - - 55 - - Unit mA V A A MHz MHz MHz MHz MHz/V MHz/V % nsec nsec Inflow current when VDD applied to input Outflow current when GND applied to input FSEL=L FSEL=H FSEL=L FSEL=H FSEL=L FSEL=H at 1/2 VDD Time is from VDD 0.2 to VDD 0.8 Time is from VDD 0.2 to VDD 0.8 Conditions 60MHz oscillation when output loaded IDD VID IIH IIL FMAX1 FMAX2 FMIN1 FMIN2 1 2 Duty tr tf Application example OUT VDD 1 OUT VDD bypass capacitor FIN-B 14 REF IN OUT GND 1/N VCO VDD AVDD 2 OUT GND 3 VCO OUT 4 VCO VDD bypass capacitor FIN-A 13 12 11 10 9 8 H:PD Disable(Hi lmp) L:PD Enable H:VCO out Disable(L Fix) L:VCO out Enable DVDD bypass capacitor VCOE BU2370FV DVDD AGND VCO GND 5 VCO GND 6 VCO IN 7 FSEL1 DGND DGND PD OUT PDE DGND DVDD This line is noise source. But if power line and GND are divided into two, this line becoms AVDD,AGND DVDD,DGND OUT DVDD,OUT GND Please take care this Power line. Because this line is most weak indigitalnoise. So this line must be separated from digital_VDD, GND. And place bypass capacitor (0.01F) for power pin as close to BU2370FV as possible. And place bypass capacitor (0.01F) for power pin as close to BU2370FV as possible. This line is most noise source. So it should be separated from Analog. And this line should be connected VDD of external VCC-outdivide. And place bypass capacitor (0.01F) for power pin as close to BU2370FV as possible. Recommend to use capacitor that is better to reduce high frequency noise. Recommend to control (FSEL1, PDE, VCOE) by power line.(DVDD, DGND) 5/5 www..com 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 |
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