Texas Instruments DAC7741EVM User Manual Download Page 7 | Manualshive

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Physical Description

Figure 4. Layer Two (Split Ground Plane)

DAC7741EVM

SLAU093A – October 2002 – Revised May 2005

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Summary of Contents for DAC7741EVM

Page 1: ...er EVM s 2 4 FCC Warnings 2 Trademarks 2 5 EVM Overview 3 6 EVM Basic Functions 4 7 Physical Description 5 8 Bill Of Materials 12 9 EVM Operation 13 List of Figures 1 EVM Block Diagram 4 2 Top Silkscr...

Page 2: ...ents can also be obtained through the TI Web site at http www ti com Data Sheets Literature Number Data Sheets Literature Number DAC7741 SBAS248 SN74AHC541 SCLS261 REF102 SBVS022 SN74AHC138 SCLS258 OP...

Page 3: ...d make sure that the correct cables are connected to their respective terminals as labeled on the EVM board Stresses above the maximum listed voltage ratings may cause permanent damage to the device 5...

Page 4: ...rm generator The headers J1 and J3 are provided to connect the necessary control signals and data needed to interface a microprocessor microcontroller TI s DSP Starter Kit or waveform generator to the...

Page 5: ...n the module The EVM is constructed on a four layer printed circuit board using a copper clad FR 4 laminate material The printed circuit board has a dimension of 96 52 mm 3 80 inch X 102 87 mm 4 050 i...

Page 6: ...www ti com Physical Description Figure 3 Layer One Top Signal Plane DAC7741EVM 6 SLAU093A October 2002 Revised May 2005...

Page 7: ...www ti com Physical Description Figure 4 Layer Two Split Ground Plane DAC7741EVM SLAU093A October 2002 Revised May 2005 7...

Page 8: ...www ti com Physical Description Figure 5 Layer Three Split Power Plane DAC7741EVM 8 SLAU093A October 2002 Revised May 2005...

Page 9: ...www ti com Physical Description Figure 6 Layer Four Bottom Signal Plane DAC7741EVM SLAU093A October 2002 Revised May 2005 9...

Page 10: ...www ti com Physical Description Figure 7 Bottom Silkscreen DAC7741EVM 10 SLAU093A October 2002 Revised May 2005...

Page 11: ...www ti com Physical Description Figure 8 Drill Drawing DAC7741EVM SLAU093A October 2002 Revised May 2005 11...

Page 12: ...KT 10 F 1 15 3 J2 J3 J4 Samtec TSM 110 01 S DV M 20 PIN IDC 16 1 J6 Samtec TSM 105 01 T DV 10 PIN IDC 17 3 P2 P3 P4 Samtec SSW 110 22 S D VS P 20 PIN IDC 2 18 2 J11 J12 On Shore Tech ED555 3DS 3 Pin T...

Page 13: ...pin is floated W10 OPEN RFB1 is floated W11 CLOSE AGND and DGND are tied together to a common point W12 2 3 The LDAC signal used is address decoded and translated to the DSP_LDAC W13 3 4 Buffered out...

Page 14: ...y shorting the respective pins of W13 and selecting the position of W30 The following sections describe the different configurations of the output amplifier U2 9 2 1 Unity Gain Output The buffered out...

Page 15: ...capacitive load requirement However all operational amplifiers under certain conditions may become unstable depending on the operational amplifier configuration gain and load value These are just few...

Page 16: ...eference voltage Routes the onboard 10 V reference through the adjustable potentiometer to W3 and W14 W4 Routes the user supplied reference from TP1 or J4 20 through the adjustable poten tiometer to W...

Page 17: ...y Disconnects the negative terminal of U2 to AGND and disables 2x gain W15 Configures U2 for a 2x gain output RSTSEL pin is pulled high and configures the DAC to mid scale when POR or reset is initiat...

Page 18: ...n DSP_R W signal function The C6x_WR signal is routed for the combination DSP_R W signal function W27 WR signal if using C5x DSP is routed for the combination DSP_R W signal function The combination C...

Page 19: ...D9 D10 D11 D12 D13 D14 D15 W18 5VD 5VD 5VD 5VD 3 3VD 5VD 1DIR 1 1B1 2 1B2 3 GND 4 1B3 5 1B4 6 VCC 7 1B5 8 1B6 9 GND 10 1B7 11 1B8 12 2B1 13 2B2 14 GND 15 2B3 16 2B4 17 VCC 18 2B5 19 2B6 20 GND 21 2B7...

Page 20: ...20K exREFin 1 2 3 R9 20K 5VD W4 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 C6 10 F C4 10 F C5 10 F DB0 16 DB1 17 DB2 18 DB3 19 DB4 20 DB5 21 DB6 22 DB7 27 DB8 28 DB9 29 DB10...

Page 21: ...tents or services described herein Please read the EVM User s Guide and specifically the EVM Warnings and Restrictions notice in the EVM User s Guide prior to handling the product This notice contains...

Page 22: ...iness practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product wou...

Page 23: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments DAC7741EVM...

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