CDB5541 Cirrus Logic Inc, CDB5541 Datasheet
CDB5541
Specifications of CDB5541
Related parts for CDB5541
CDB5541 Summary of contents
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... CS SDI SDO SCLK This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. Copyright Cirrus Logic, Inc. 2001 (All Rights Reserved) CDB5540 CDB5541 Evaluation System Evaluation System VA+ RESET CIRCUITRY RS232 TRANS- AVR CEIVER ...
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... Cirrus Logic, Inc. The names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trade- marks and service marks can be found at http://www.cirrus.com. 2 CDB5540 CDB5541 DS503DB1 ...
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... Figure 10.Microcontroller, Test Switches and LED’s .................................................................... 17 Figure 11.CDB5540/41 Layout (Silkscreen).................................................................................. 18 Figure 12.CDB5540/41 Layout (Top) ............................................................................................ 19 Figure 13.CDB5540/41 Layout (Bottom)....................................................................................... 20 LIST OF TABLES Table 1. Default Header and DIP Switch Settings .......................................................................... 6 Table 2. Voltage Reference Settings .............................................................................................. 6 Table 3. MCLK Settings .................................................................................................................. 6 Table 4. DIP Switch SW1 Settings.................................................................................................. 6 DS503DB1 CDB5540 CDB5541 3 ...
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... HARDWARE 1.1 Introduction The CDB5540 and CDB5541 evaluation systems provide a quick means of testing the CS5540 and CS5541 Analog-to-Digital Converters (ADCs). The CS5540/41 are low-power, low-voltage ∆−Σ analog-to-digital converters (ADC), targeted at temperature and pressure measurement, and vari- ous portable devices where low power consump- tion is required ...
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... DIP switch SW1 is used to control the AVR modes and Table 4 illustrates the various modes it can be set to. When testing the RS-232 link in the PC soft- ware, the DIP switches should all be in the CLOSED position. Configurations other than those specified are not recommended. CDB5540 CDB5541 5 ...
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... O XTAL SW3 is OPEN XOSC CS5541 O O XTAL SW1 is OPEN XOSC SW2 is CLOSED SW3 is OPEN RS-232 Test Mode SW1 is CLOSED SW2 is CLOSED SW3 is CLOSED CDB5540 CDB5541 Default Setting Default Jumpers O O Mode XTAL O O MCLK MCLK XOSC O O MCLK XREF VREF- VA- ...
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... Using the Software At start-up, the title screen appears first (Figure 1). This window contains information concerning the DS503DB1 CDB5540 CDB5541 software’s title, revision number, copyright date, etc. Additionally, at the top of the screen is a menu bar which displays user options. Notice, the menu bar item Window is initially disabled ...
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... The ADC will power down according to the data sheet specifications. SPI Init: This button issues an SPI Initialization command to the CS5541. 8 CDB5540 CDB5541 Command Word Components Channel Select: This pull-down menu allows the user to select which channel the ADC will convert. In the CS5541, this affects the command word. De- fault selection is “ ...
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... Click on RESTORE when done with the zoom function to display the entire data set graph. A region can also be DS503DB1 CDB5540 CDB5541 magnified further by clicking on the ZOOM button again. RESTORE: Restores the display of the graph after zoom has been entered ...
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... S/N+D: Indicator for the Signal-to-Noise + Distor- tion Ratio in dB. This is the ratio of the signal mag- 10 CDB5540 CDB5541 nitude to the magnitude of the first four harmonics and the noise. SNR: Indicator for the Signal-to-Noise Ratio in dB. This is the ratio of the signal magnitude to the magnitude of the noise (an average noise value is included in place of the first four harmonics) ...
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... DS503DB1 Figure 1. Title Screen Figure 2. Setup Window CDB5540 CDB5541 11 ...
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... Figure 3. Frequency Domain Analysis Figure 4. Configuration Panel CDB5540 CDB5541 DS503DB1 ...
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... DS503DB1 Figure 5. Time Domain Analysis Figure 6. Histogram Analysis CDB5540 CDB5541 13 ...
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... CDB5540 CDB5541 DS503DB1 ...
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... O VREF+ REF VREF+ XREF VREF+ VA VREF+ VA VREF+ REF VREF+ XREF VREF+ VA VREF+ VA VREF+ REF VREF+ Voltage Reference Settings CDB5540 CDB5541 TERM_BLOCK XOSC XOSC AIN2+ 2 AIN2- DGND 1 J5 DGND REF 4.7UF .1UF TANT REF- TERM_BLOCK XREF+ 2 XREF- VREF HDR9 XREF VREF- VA- ...
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... R7 DS503DB1 OPEN 5.11K R16 5.11K R15 5.11K R14 3.6864MHZ Y1 CDB5540 CDB5541 17 ...
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... CDB5540 CDB5541 DS503DB1 ...
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... DS503DB1 CDB5540 CDB5541 19 ...
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... CDB5540 CDB5541 DS503DB1 ...
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Notes • ...
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