 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AD9255BCPZ-125 Datasheet(PDF) 34 Page - Analog Devices |
|
||||||||||||||||||||||||||||||
AD9255BCPZ-125 Datasheet(HTML) 34 Page - Analog Devices |
|
|
34 / 45 page  Data Sheet AD9255 Rev. C | Page 33 of 44 BUILT-IN SELF-TEST (BIST) AND OUTPUT TEST The AD9255 includes built-in self-test features designed to enable verification of the integrity of the part as well as facilitate board level debugging. A built-in self-test (BIST) feature is included that verifies the integrity of the digital datapath of the AD9255. Various output test options are also provided to place predictable values on the outputs of the AD9255. BUILT-IN SELF-TEST (BIST) The BIST is a thorough test of the digital portion of the selected AD9255 signal path. When enabled, the test runs from an internal pseudorandom noise (PN) source through the digital datapath starting at the ADC block output. The BIST sequence runs for 512 cycles and stops. The BIST signature value is placed in Register 0x24 and Register 0x25. The outputs are not disconnected during this test, so the PN sequence can be observed as it runs. The PN sequence can be continued from its last value or reset from the beginning, based on the value programmed in Register 0x0E, Bit 2. The BIST signature result varies based on the part configuration. OUTPUT TEST MODES The output test options are shown in Table 17. When an output test mode is enabled, the analog section of the ADC is discon- nected from the digital back end blocks and the test pattern is run through the output formatting block. Some of the test patterns are subject to output formatting, and some are not. The seed value for the PN sequence tests can be forced if the PN reset bits are used to hold the generator in reset mode by setting Bit 4 or Bit 5 of Register 0x0D. These tests can be performed with or without an analog signal (if present, the analog signal is ignored), but they do require an encode clock. For more information, see AN-877 Application Note, Interfacing to High Speed ADCs via SPI. |
Similar Part No. - AD9255BCPZ-125 |
|
Similar Description - AD9255BCPZ-125 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
