EK26

EK26 EK26 nnoovvaa t i o n FFr roomm P rEK26 o d u c t IInnPA60 Evaluation Kit for PA60EU Pin-Out INTRODUCTION The following locations should be jumpered unless used (their most common anticipated function is listed). R2, R10 Input protection. CR1 VBOOST. R5, R6, R9 Output current sense. The function of any other components is up to the designer’s needs and imagination. Fast, easy breadboarding of circuits using the PA60EU are possible with the PB80 PC board. Mounting holes are provided and the provision for standard banana jacks simplifies connection and testing. The amplifier may be mounted horizontally or vertically. Components are labeled on both sides of the board for ease in probing. A multitude of circuit configurations are possible, so only several component locations have specific functions and will usually be necessary: C5,C8 Power supply bypasses MUST be used. Usually ceramic types of 0.01 to 1.0µF. C2, C9 Power supply bypass. Suggest 10µF per ampere of output current. R1 Feedback resistor. R3 Input resistor. R8, C10 Snubber network. R4, C7 Noise gain compensation. Necessary only occasionally, see Application Notes 19 and 25. PA60EU CONSIDERATIONS: When using the EK26 for the PA60EU the following components on the schematic below must be left either shorted or open: Short: R109, R209 Open: CR101, C106, CR201, C206 EQUIVALENT SCHEMATIC R101 GND C103 –IN 1 C101 C104 R103 2 R107 C111 C112 +V C105 R102 R104 +IN 1 C102 C107 1 R110 R111 CR101 C106 CR102 7 VCC 35 VEE 4 R105 R106 6 OUT 1 GND R109 C108 R108 C110 CR103 –V C109 GND R201 C203 C201 C204 CR201 –IN 2 R203 R204 R207 +IN 2 EK26U C211 http://www.cirrus.com C212 C206 CR202 11 C207 R211 R202 R210 10 8 R205 R209 R208 C210 VCC 12 VEE R206 9 OUT2 GND Copyright © Cirrus Logic, Inc. 2009 (All Rights Reserved) CR203 MAY 20091 APEX − EK26UREVF EK26 P r o d u c t I n n o v a t i o nF r o m 7" R210 CR101 R110 R204 C102 R104 C109 C105 CR102 R202 R203 R201 C204 –IN2 R102 CR103 R103 R101 CR203 CR202 C201 C108 +IN1 GND1 C103 C203 C104 C101 –IN1 5" R105 R205 C106 C206 OUT2 R111 C111 C107 C207 R107 GND2 R211 R207 +IN2 C211 CR201 C112 C212 1 OUT1 R106 R206 R208 R108 C210 C110 R209 R109 M I C R O T E C H N O L O G Y C107 +IN1 C111 GND1 CR201 CR101 R109 R102 R210 C207 +IN2 C211 R204 R104 C203 C103 R103 R102 C104 CR103 R101 C101 –IN1 C108 CR203 C105 R202 CR102 CR202 C204 C201 –IN2 R205 C206 C106 R106 GND2 R203 R201 C105 OUT1 R207 R110 C212 C112 R111 R107 1 R211 EK26 –V +V CIRCUIT SIDE GND PB80 REV-B R208 R108 C110 OUT2 R206 C210 R109 R209 EK26 +V COMP. SIDE –V PB80 REV-C GND M I C R O T E C H N O L O G Y NOTE: Illustration only, not to scale. 2 EK26U P r o d u c t I n n o v a t i o nF r o m EK26 Contacting Cirrus Logic Support For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America. For inquiries via email, please contact apex.support@cirrus.com. International customers can also request support by contacting their local Cirrus Logic Sales Representative. To find the one nearest to you, go to www.cirrus.com IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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IF THE CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS’ FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. EK26U 3