BA7653AFV

TECHNICAL NOTE High-performance Video Signal Switchers Single Circuit Video Signal Switcher BA7654F, BA7653AF/AFV ,BA7652AF Description The BA7654F, BA7653AF/AFV, or BA7652AF is a video signal (display signal) switch containing one 2-input or 3-input circuit. Each of the input pin formats is “sync-tip clamp input” that matches the synchronous tips of video signals (display signals) to the same potential. The inputs have an high input impedance configuration, in which they can utilize a small clamp capacitor (0.01 F (FZ) ceramic capacitor is recommended). Features 1) Low value clamp capacitance can be used (Min. 3000 pF Recommended 0.01 F (FZ) ceramic capacitor) 2) Low voltage operation is possible (Operating range 4.0 7.0V) 3) Superimposed can be applied since switching speed of SW is fast and there is little switching noise (Typ. 70ns) 4) Low power consumption (Typ. 25mW when Vcc=5V) 5) Large dynamic range (Typ. 3.1VP-P when Vcc=5V) 6) Good frequency characteristics (Typ. 10 MHz 0 dB) 7) Low interchannel crosstalk (Typ. –70 dB) 8) Voltage can be applied to the CTL pin without a VCC voltage. 9) Built-in mute function (BA7652AF) Applications VCR, TV, and other applications that use display signals. Product lineup Part No. BA7654F BA7653AF/AFV BA7652AF Input type 2 in 1 Circuit 3 in 1 Circuit 3 in 1 Circuit Mute Supply voltage(V) 4.0 7.0 Aug.2008 Absolute maximum ratings Ta=25 Limits BA7653AF BA7653AFV 9 Parameter Supply voltage Symbol VCC BA7654F BA7652AF Unit V Power dissipation Pd 500*1 500*1 350*2 500*1 mW Operating temperature Topr -25 +75 -30 +80 -30 +80 -30 +80 Storage temperature Tstg -55 +125 *1 Reduce by 5.0mW/qC over 25qC, when mounted on a 50mm˜50mm PCB board.(BA7654F, BA7653AF, BA7652AF) 2 * Reduce by 3.5mW/qC over 25qC, when mounted on a 50mm˜50mm PCB board.(BA7653AFV) Operating range Ta=25 Parameter Symbol Limits Unit V Supply voltage VCC 4.0 7.0 Note: This IC is not designed to be radiation-resistant. Electrical characteristics Unless otherwise noted, Symbol ICC Vom GV Cta Cf VTH L VTH H Min. 2.7 2.6 -0.5 -3.0 2.5 Ta=25 , Vcc=5.0V Typ. 5.0 3.1 0 -70 0 Max. 8.2 +0.5 +1.0 1.0 Unit mA VP-P dB dB dB V Conditions f=1kHz, THD=1.0 f=1MHz, VIN=1.0VP-P f=4.43MHz, VIN=1.0VP-P f=10MHz/1MHz, VIN=1.0VP-P VTH = Vcc-0.75 ˜0.44 Parameter Circuit current Maximum output level Voltage gain Inter channel crosstalk Frequency characteristics CTL switching voltage Guaranteed design parameters (Unless otherwise noted, Ta=25 , Vcc=5.0V Parameter Differential phase Differential gain Symbol DG DP Min. Typ. 0 0.5 Max. 0.5 1.0 Unit deg Conditions VIN=1.0VP-P, standard staircase signal VIN=1.0VP-P, standard staircase signal 2/8 Block diagram IN1 1 8 GND CTL 2 7 OUT IN2 3 Logic 6 VCC GND 4 5 Open. Fig.1 BA7654F Fig.2 BA7653AF/AFV Fig.3 BA7652AF Control Pin Settings BA7654F CTL L H OUT IN1 IN2 CTLa L H L H BA7653AF/AFV CTLb L L H H OUT IN1 IN2 IN3 IN3 CTLa L H L H BA7652AF CTLb L L H H OUT IN1 IN2 IN3 MUTE 3/8 Pin descriptions 1/2 (BA7654F) BA7654F Pin No. Pin name DC voltage Vcc=5V Input/output impedance Equivalent circuit 1 (3) IN1 1.65V (IN2) 10M or more IN1 (IN2) 2 CTL CTL 4 GND (8) 0V 5 N.C. open open 6 Vcc 5V 7 OUT 0.95V 26 4/8 Pin descriptions 2/2 (BA7653AF/53AFV/52AF) BA7653AF/53AFV/52AF Pin No. Pin name DC voltage Vcc=5V Input/output impedance Equivalent circuit 1 (3) (5) IN1 (IN2) (IN3) 1.65V 10M or more IN1 (IN2) (IN3) 2 CTLa CTLa 4 CTLb 6 Vcc 5.0V 7 OUT 0.95V 26 8 GND 0V 5/8 Application circuit 1/2 BA7654F BBA7654F A7654F 0.01 0.01uF C.Video IN C.Video IN 1 1 IN 1 IN1 Vcc Vcc 6 6 Vc Vccc 0.01 0.01uF C.Video IN C.Video IN IN 2 3 3 IN2 47 47uF 0.1 0.1u Open 5 5 Open OUT OUT 7 7 C.Video OUT C.Video OUT Logic Logic 2 2 CTL CTL 4 4 GND GND GND GND 8 8 Fig.4 When superimpossion is used BA7654F 0.01uF C.Video IN 1 IN1 Vcc 6 Vcc 47u 3 DC1.7V or more 0.1u IN2 5 Open OUT 7 C.Video OUT/DC OUT Logic 2 CTL 4 GND GND 8 Fig.5 Cautions on use 1. 2. Numbers and data in entries are representative design values and are not guaranteed values of the items. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. GND potential Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND at any time, regardless of whether it is a transient signal or not. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in actual states of use. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. For clamp operation stability Set the output impedance of the stage before a BA7654AF input pin no more than 1 kŸ. 3. 4. 5. 6. 7. 8. 6/8 An input clamp capacitor will cause delay in operation at power on. Therefore, it is recommended to use a clamp capacitor no larger than 0.1 F ( A 0.01 F (FZ) ceramic capacitor is recommended). 10. CTL pin is in indeterminate status when left Open. Set it at “H” or “L” level. 11. For superimposed, a 1.7v DC voltage should be applied directly to an input pin. Application circuit 2/2 BA7653AF/53AFV/52AF BA7653AF/53AFV/52AF 9. Fig.6 When superimpossion is used BA7653AF/53AFV/52AF DC1.7V or more DC1.7V or Fig.7 Cautions on use 1. 2. Numbers and data in entries are representative design values and are not guaranteed values of the items. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. GND potential Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND at any time, regardless of whether it is a transient signal or not. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in actual states of use. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. For clamp operation stability Set the output impedance of the stage before a BA7653AF/53AFV/52AF input pin no more than 1 kŸ. An input clamp capacitor will cause delay in operation at power on. Therefore, it is recommended to use a clamp capacitor no larger than 0.1 F ( A 0.01 F (FZ) ceramic capacitor is recommended). 7/8 3. 4. 5. 6. 7. 8. 9. 10. The BA7653AF/53AFV/52AF is a 3-input, 1-output switch. If it is used as a 2-input, 1-output switch, by leaving one input Open and unused, the Open input pin will oscillate. However, this does not affect other pins and is not particularly a problem for operation. If necessary, connect the input pin to GND via a capacitor or connect the input pin directly to VCC to stop oscillation. 11. CTL pin is in indeterminate status when left Open. Set it at “H” or “L” level. 12. For superimposed, a 1.7v DC voltage should be applied directly to an input pin. 7 6 5 Part No. 4 2 Tape and Reel information BA7654F BA7653AF/AFV BA7652AF SOP8 Tape Quantity 5.0±0.2 8 5 Embossed carrier tape 2500pcs E2 (The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand) 6.2±0.3 4.4±0.2 1 4 1.5±0.1 0.11 0.15±0.1 0.1 1.27 0.4±0.1 0.3Min. Direction of feed 1234 (Unit:mm) Reel 1234 1234 1Pin W hen you order , please order in times the amount of package quantity. 1234 1234 1234 1234 1234 SSOP-B8 Tape Quantity 3.0±0.2 8 5 Embossed carrier tape 2500pcs E2 (The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand) 6.4±0.3 4.4±0.2 1 4 0.15±0.1 0.1 1.15±0.1 0.1 0.3Min. Direction of feed 1234 1234 1234 1234 1234 1234 1234 1234 0.22±0.1 0.65 (0.52) Reel 1Pin W hen you order , please order in times the amount of package quantity. 8/8 Catalog No.08T298A '08.8 ROHM 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 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 which 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. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2008 ROHM CO.,LTD. THE AMERICAS / EUROPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0