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. zExternal dimensions (Unit : mm) zApplications TV 5.0 ± 0.2 14 8 1 7 0.3Min. 1.15 ± 0.1 6.4 ± 0.3 4.4 ± 0.2 0.1 zFeatures 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 0.15 ± 0.1 0.1 0.22 ± 0.1 0.65 SSOP-B14 zAbsolute maximum ratings (Ta=25°C) Parameter Symbol Limits Unit Power supply voltalge VDD −0.5 to +7.0 V Inpuit voltage VIN −0.5 to VDD+0.5 V Tstg −30 to +125 °C Pd 350 mW Operating temperature range Power dissipation ∗An operation is not guranteed. ∗Derating : 3.5mW/°C for operation above Ta=25°C. ∗Radiation resistance design is not used. ∗Power dissipation is measured when BU2370FV is placed on the board. zRecommended operating conditions Parameter Symbol Min. Typ. Max. Unit Power supply voltage VDD 3.15 − 3.45 V Input H voltage range VIH 0.8VDD − VDD V Input L voltage range VIL 0 − 0.2VDD V Topr −20 − 70 °C CL − − 15 pF Operating temperature Output load 1/5 VCO β Select VCO Control input Force DC VCO Output VCO VSS VCO VDD OUT VSS OUT VDD VCO 1/2 Level Shifter Phase Detecter Nmos Pmos DVSS DVDD Phase Detect Output-Enable Phase Detect Ouput VCO Powerdown and Output Frequency Input2 Frequency Input1 BU2370FV Multimedia ICs zBlock diagram 2/5 BU2370FV Multimedia ICs zPin descriptions Pin No. Functions Pin name 1 Out VDD VDD for VCO-OUT 2 Out GND GND for VCO-OUT 3 VCO OUT VCO output 4 VCO VDD VCO analog VDD 5 VCO GND VCO analog GND 6 VCO IN VCO control Pin 7 FSEL1 VCO β collect H : 30[MHz/V] L : 15[MHz/V] 8 PDE PD control pin H : PD Disable (Hi impedance) L : PD Enable 9 PD OUT PD output 10 DGND Digital GND for PD 11 DVDD Digital VDD for PD 12 VCOE VCO control Pin H : VCO out Disable ( output L fix) L : VCO out Enable 13 FIN-A PD input 14 FIN-B PD input 3/5 BU2370FV Multimedia ICs zInput / 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 BU2370FV Multimedia ICs zElectrical characteristics (Unless otherwise noted,Ta=25°C, VCC=3.3V) Symbol Min. Typ. Max. Unit Operating current consumption VCO Parameter IDD − 20 − mA Input control voltage range (Pin 6) VID 1 − 3 V Input H voltage (Pin 6) IIH −0.1 0 0.1 µA Inflow current when VDD applied to input Input L voltage (Pin 6) IIL −0.1 0 0.1 µA Outflow current when GND applied to input Max.oscillation frequency 1 FMAX1 30 − − MHz FSEL=L Max.oscillation frequency 2 FMAX2 60 − − MHz FSEL=H Min.oscillation frequency 1 FMIN1 − − 15 MHz FSEL=L Min.oscillation frequency 2 FMIN2 − − 30 MHz FSEL=H β1 − 15 − MHz/V FSEL=L Frequency sensitivity 1 Conditions 60MHz oscillation when output loaded β2 − 30 − MHz/V FSEL=H Duty 45 50 55 % at 1/2 VDD Rise-time tr − 2.5 − nsec Time is from VDD 0.2 to VDD 0.8 Fall-time tf − 2.5 − nsec Time is from VDD 0.2 to VDD 0.8 Frequency sensitivity 2 Output duty zApplication example OUT VDD 1 OUT VDD FIN-B 14 2 OUT GND FIN-A 13 3 VCO OUT VCOE 12 DVDD 11 bypass capacitor OUT GND VCO VDD AVDD AGND VCO GND 4 VCO VDD bypass capacitor 5 VCO GND 6 VCO IN 7 FSEL1 BU2370FV 1/N REF IN H:VCO out Disable(L Fix) L:VCO out Enable DVDD bypass capacitor DGND 10 PD OUT 9 PDE 8 DGND H:PD Disable(Hi lmp) L:PD Enable DGND DVDD This line is noise source. But if power line and GND are divided into two, this line becoms AVDD,AGND 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 (0.01µF) for power pin as close to BU2370FV as possible. DVDD,DGND And place bypass capacitor (0.01µF) for power pin as close to BU2370FV as possible. OUT DVDD,OUT GND 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 (0.01µF) 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 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