 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| BU2288FV Multimedia ICs Clock generator IC BU2288FV The BU2288FV is an IC that generates plural clocks required for DVD system from a 2-channel PLL external crystal oscillator. The six kinds of signals for video and audio system are generated with low jitter. Application All DVD sets External dimensions (Unit : mm) 5.00.2 16 9 Features 1) All clock signals needed for DVD can be generated by a single chip. 2) All output low jitter (No load 30psec) 3) No need for additional components. (BU2288FV has a PLL loop filter inside.) 4) 3.3V single power supply 5) Small SSOP-B16 package. 6.40.3 4.40.2 1 8 1.150.1 0.1 0.150.1 0.1 0.65 0.220.1 SSOP-B16 Absolute maximum ratings (Ta=25C) Parameter Applied voltage Input voltage Storage temperature range Power dissipation Symbol VDD VIN Tstg Pd Limits -0.5 to +7.0 -0.5 to VDD+0.5 -30 to +125 450 Unit V V C mW An operation is not guaranteed. In case it is used at Ta=25C or more, 4.5mW is reduced at every1C. Radiation resistance design is not used. Power dissipation is measured when BU2288FV is placed on the board. Recommended operating conditions (Ta=25C) Parameter Supply voltage Input "H" voltage range Input "L" voltage range Operation temperature range Output maximum load Symbol VDD VIH VIL Topr CL Min. 3.0 0.8VDD 0 -5 - Typ. - - - - - Max. 3.6 VDD 0.2VDD 70 15 Unit V V V C pF 0.3Min. 1/6 BU2288FV Multimedia ICs Block diagram 27MHz XTALIN XTAL XTALOUT XTALIN=27MHz 1/6 CLK512FS 24.576MHz or 22.5792MHz PLL1 1/4 33.8688MHz FSEL1 1/8 16.9344MHz PLL2 1/4 FSEL1 CLKA 16.9344MHz or 36.864MHz 1/6 FSEL1 OPEN L CLK512FS 22.5792MHz 24.576MHz CLKA 16.9344MHz 36.864MHz 2/6 BU2288FV Multimedia ICs Pin descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin name VDD2 VSS2 CLK27M TEST AVDD AVSS XTALOUT XTALIN CLKA CLK512FS DVSS DVDD CLK16M FSEL1 CLK33M OE Functions Digital VDD for 27MHz clock output Digital GND for 27MHz clock output 27MHz clock output Output for test Analog VDD Analog GND Standard crystal output Standard crystal input Clock output (FSEL1=Open : 16.9344MHz, FSEL1=L : 36.864MHz) Clock output (FSEL1=Open : 22.5792MHz, FSEL1=L : 24.576MHz) Digital GND Digital VDD 16.9344MHz clock output Output select : with pull-up Open : 16.9344MHz (Pin9), 22.5792MHz (Pin10) L : 36.864MHz (Pin9), 24.576Mhz (Pin10) 33.8688MHz clock output Output enable (open : enable, L : disable) : with pull-up 3/6 BU2288FV Multimedia ICs Input output circuits Pin No. Equivalent circuit to inside IC Input (schmitt trigger) Pin 14 with pull-up resistance Input Pin 16 with pull-up resistance to inside IC Output Pin from inside IC 3, 9, 10, 13, 15 Output Pin 4 to inside IC Crystal Pin 7, 8 4/6 BU2288FV Multimedia ICs Electrical characteristics (Unless specified otherwise Ta=25C, VDD=3.3V, crystal frequency=27MHz) Parameter Output "H" voltage Output "L" voltage FSEL Input VthL 3 Symbol VOH VOL VthL VthH Vhys IDD CLK512-A CLK512-B Min. 2.4 - 0.2VDD - 0.2 - - - - - - - - 45 - - - - - Typ. - - - - - 27 22.5792 24.576 33.8688 16.9344 27 16.9344 36.864 50 70 420 2.5 2.5 - Max. - 0.4 - 0.8VDD - 40.5 - - - - - - - 55 - - - - 1 Unit V V V V V mA MHz MHz MHz MHz MHz MHz MHz % psec psec nsec nsec msec IOH=-4.0mA IOL=4.0mA 1 1 Conditions FSEL Input VthH 3 Hysteresis width 3 Power supply current CLK512FS CLK33M CLK16M CLK27M CLK A Duty Jitter 1 Jitter MIN-MAX Rise time Fall time Output Lock time Vhys=VthH-VthL no load FSEL1=OPEN, XTAL 3136/625/6 FSEL1=L, XTAL 2048/375/6 XTAL 3136/625/4 XTAL 3136/625/8 XTAL output FSEL1=OPEN, XTAL 3136/625/8 FSEL1=L, XTAL 2048/375/4 1/2 VDD test Jitter 1sigma MIN-MAX level Time between 0.2VDD~0.8VDD Time between 0.8VDD~0.2VDD 2 CLK33M CLK16M CLK27M CLKA-A CLKA-B Duty JsSD JsABS tr tf tlock Note : JITTER is mean value when using Time Interval Analyzer with 10,000 sampling 1) graph Output (V) 0.2VDD Vhys 0.8VDD VyhL 1/2VDD VyhH Input (V) 2) Time between voltage supply leads to 3.0V and output clock gats stable. Start up time of power supply sources satisfy this rated value at every time, case 5/6 BU2288FV Multimedia ICs Application example 1 VDD2 OE 16 2 VSS2 CLK33M 15 33.8688MHz 27MHz 3 CLK27M FSEL1 14 L or NC (pull-up) BU2288FV 4 TEST CLK16M 13 16.9344MHz 5 AVDD DVDD 12 6 AVSS DVSS 11 7 XTALOUT CLK512FS 10 24.576 or 22.5792MHz 8 XTALIN CLKA 9 16.9344 or 36.864MHz Note : The BU2288FV is basically placed on the board Decoupling capacitance (0.1F) need to be placed between Pin5 (AVDD) and Pin6 (AVSS). Also Decoupling capacitance (0.1F) need to be placed between Pin1 (VDD2) and Pin2 (VSS2), Pin11 (DVSS) and Pin12 (DVDD). To obtain accurate frequency, capacitance ( pF) need to be placed between Pin8 (XTALIN) and Pin6 (AVSS), Pin7 (XTALOUT) and Pin6 (AVSS). Tantalum capacitance (10 100F), ferrite beads may need to be placed to prevent power supply drop in certain boards case. To reduce high frequency noise, selected bypass capacitors (1 at problem high frequency) maybe used for power pin as close to BU2288FV as possible. 6/6 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 |
Price & Availability of BU2288FV
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |