DAEV6240.004 23 March, 2012 MAS6240 EVALUATION BOARD INTRODUCTION The MAS6240 piezo driver IC evaluation board supports the MAS6240C2 piezo driver IC in the QFN package. This device version has the input current limitation disabled. The MAS6240C1 version, having the input current limitation enabled, is not supported by this evaluation board (but can be arranged). The MAS6240C1 with current limitation enabled is suitable for driving smaller piezo loads in single ended configuration. The MAS6240C2 with current limitation disabled is suitable for driving larger piezo loads and also in differential configuration for achieving maximal piezo sound pressure. The volume production package is QFN3x3. 1 (7) DAEV6240.004 23 March, 2012 JUMPER SETTINGS The evaluation board is ready to be used after connecting a 3V battery supply to the control socket pins. There are several jumper settings available which are used to configure the board for various operation configurations. All jumper settings are illustrated by on board silk screen printings. The CONTROL socket comprises of VDD, EN1, EN2, DIN and GND pins. The battery supply is connected between the VDD and GND pins.. The on-board EN1 and EN2 jumpers are used for choosing between power down, 1X, 2X and 3X charge pump operating modes. The EN1 and EN2 pins in the CONTROL socket can also be used for external control but in this case the EN1 and EN2 jumpers must be removed The DIN_SELECT jumper chooses the DIN signal source. OSC chooses the on board DIN oscillator, which frequency can be adjusted with the potentiometer. LED connects DIN to VIN which will just turn on the charge pump but keeping the piezo driver outputs disabled. There is a separate LED jumper at the top of the board that, if mounted, connects a LED to the Vout output. This can be used to evaluate the MAS6240 as a LED driver. The push button is used to trigger the DIN signal to drive either a piezo or LED depending on the DIN_SELECT jumper setting. EXT_DIN is used to select an external DIN signal from the CONTROL socket. The BUZ / SINGLE jumper setting is used to choose between single ended and differential load configurations as well as between driving either the on board piezo buzzer or an externally connected piezo buzzer. The CUR jumper can be replaced by an ampere meter for current consumption measurement. The VOUT pin is available together with GND for measurement of the charge pump output voltage. 2 (7) DAEV6240.004 23 March, 2012 DEVICE OUTLINE CONFIGURATION QFN 3x3 12ld 7 10 1234 GCv 4 YWW 1 Top Marking Information: 1234 = Product Number Cv = Version Number G = Lead Free, RoHS Compliant Package YWW = Year Week PIN DESCRIPTION Pin Pin Name Type 1 2 3 4 5 6 7 8 9 10 11 12 EN1 EN2 DIN CN1 GND VO2 VO1 CN2 CP1 VOUT CP2 VIN DI DI DI I/O G DO DO I/O I/O AO I/O P Function Note Control signal input for setting charge pump mode Control signal input for setting charge pump mode Enable signal + Digital signal input Flying capacitor negative terminal Supply ground Digital audio signal output Digital audio signal output Flying capacitor negative terminal Flying capacitor positive terminal Charge pump output Flying capacitor positive terminal Power supply A = Analog, D = Digital, P = Power, G = Ground, I = Input, O = Output 3 (7) DAEV6240.004 23 March, 2012 CIRCUIT BOARD LAYOUT 4 (7) DAEV6240.004 23 March, 2012 CIRCUIT BOARD SCHEMATIC C3 C4 100n 100n GND GND CN2 C2 100n 100 R9 EN1 EN1 EN2 EN2 100 R10 DIN DIN EN1 GND VO1 VO2 GND 100 LED VOUT R11 VIN GND D1 R8 MAS6240 100n 300 CN1 CP1 C1 CUR VDD CP2 VOUT VDD GND GND GROUND EN2 SINGLE C6 GND 10µ INTBUZ 2.2k Q1 R1 GND EXTBUZ BUTTON GND BUZ GND VDD Q3 R7 47k 2N3904 2N3905 1k 10k R4 R5 DIN_SELECT R6 C5 1k R3 2N3904 10k 1k R2 Q2 100n GND 5 (7) DAEV6240.004 23 March, 2012 BILL OF MATERIALS Ref Value Type Package Description D1 - LED SMD AVAGO TECHNOLOGIES - HSMW-A100-U40J1 LED, SMD, PLCC2, WHITE C1 100n Capacitor SMD 0805 C2 100n Capacitor SMD 0805 C3 100n Capacitor SMD 0805 C4 100n Capacitor SMD 0805 C5 100n Capacitor SMD 0603 C6 10u Capacitor SMD 0805 R1 2.2k Resistor SMD 0603 R2 1k Resistor SMD 0603 R3 1k Resistor SMD 0603 R4 1k Resistor SMD 0603 R5 10k Potentiometer through hole, top side operated R6 10k Resistor SMD 0603 R7 47k Resistor SMD 0603 R8 100 Resistor SMD 0603 R9 100 Resistor SMD 0603 R10 100 Resistor SMD 0603 R11 300 Resistor SMD 0603 U1 MAS6240C2HP IC QFN3x3 12-lead Q1 2N3904 NPN transistor TO-92 Q2 2N3904 NPN transistor TO-92 Q3 2N3905 PNP transistor TO-92 BUTTON - Push button SMD, top side operated Omron B3FS-1010. EXTBUZ - Wire Connector CAMDEN - CTB5000/2 - TERMINAL BLOCK, PCB, 2WAY CUR - INTBUZ - LED - VOUT - BUZ - DIN_SELECT - EN1 - EN2 - SINGLE - CONTROL - GROUND - INT BUZZER SMAT-21-P10 Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Jumper connector Piezo transducer 2-pin connector, screw tightening for wires, through hole 2-pin connector - - - - - - - - 6 x jumper socket 2xAA batt holder with wire leads 5-pin socket for battery voltage connection 4 x Spacer, self locking Bourns 3310P-001-103L. Note: the DIL-20 socket is not used in QFN board! 2-pin connector 2-pin connector 2-pin connector 3-pin connector 3-pin connector 3-pin connector 3-pin connector 3-pin connector 5-pin connector 5-pin connector through hole Sonitron SMAT-21 piezo transducer - HARWIN M7565-05, JUMPER SOCKET, GREY - BH322-1A - FISCHER ELEKTRONIK - BL1.36Z - HEADER, SOCKET, 2.54MM, 36WAY, 5 pin header cut and used in the PCB socket connection. - HARWIN R6510-00 6 (7) DAEV6240.004 23 March, 2012 ORDERING INFORMATION Product Code Product Package EB6240C2HP MAS6240 Evaluation Board QFN 3x3x0.75 12ld Comments LOCAL DISTRIBUTOR MICRO ANALOG SYSTEMS OY CONTACTS Micro Analog Systems Oy Kutomotie 16 FI-0038 Helsinki, FINLAND Tel. +358 10 835 1100 Fax +358 10 835 1119 http://www.mas-oy.com NOTICE Micro Analog Systems Oy reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products. Micro Analog Systems Oy assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights unless otherwise specified in this data sheet, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Micro Analog Systems Oy makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. 7 (7)