- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10533 > AD9649BCPZ-20 (Analog Devices Inc)IC ADC 14BIT 20MSPS 32LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD9649BCPZ-20 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 20MSPS 32LFCSP |
| 標準包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 20M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 51.8mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-VQ |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 2 個單端，單極；1 個差分，單極 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當(dāng)前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
AD9649
Rev. 0 | Page 23 of
32
BUILT-IN SELF-TEST (BIST) AND OUTPUT TEST
The AD9649 includes a built-in test feature designed to enable
verification of the integrity of each channel, as well as facilitate
board-level debugging. Also included is a built-in self-test (BIST)
feature that verifies the integrity of the digital datapath of the
AD9649. Various output test options are also provided to place
predictable values on the outputs of the AD9649.
BUILT-IN SELF-TEST (BIST)
The BIST is a thorough test of the digital portion of the selected
AD9649 signal path. Perform the BIST test after a reset to ensure
that the part is in a known state. During the BIST test, data from
an internal pseudorandom noise (PN) source is driven through
the digital datapath of both channels, starting at the ADC block
output. At the datapath output, CRC logic calculates a signature
from the data. The BIST sequence runs for 512 cycles and then
stops. When the BIST sequence is complete, the BIST compares
the signature results with a predetermined value. If the signatures
match, the BIST sets Bit 0 of Register 0x24, signifying that the
test passed. If the BIST test failed, Bit 0 of Register 0x24 is cleared.
The outputs are connected during this test so that the PN sequence
can be observed as it runs. Writing the value 0x05 to Register 0x0E
runs the BIST, enabling Bit 0 (BIST enable) of Register 0x0E
and resetting the PN sequence generator, Bit 2 (BIST init) of
Register 0x0E. Upon completion of the BIST, Bit 0 of Register 0x24
is automatically cleared. The PN sequence can be continued from
its last value by writing a 0 in Bit 2 of Register 0x0E. However, if the
PN sequence is not reset, the signature calculation does not equal
the predetermined value at the end of the test. The user must
then rely on verifying the output data.
OUTPUT TEST MODES
The output test options are described in Table 16 at Address 0x0D.
When an output test mode is enabled, the analog section of the
ADC is disconnected 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 PN generators from the PN sequence tests can be reset
by setting Bit 4 or Bit 5 of Register 0x0D. These tests can be per-
formed with or without an analog signal (if present, the analog
signal is ignored), but they do require an encode clock. For more
information, see the AN-877 Application Note, Interfacing to
High Speed ADCs via SPI.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 97-3101A-14S-6S | CONN RECEPT CBL MNT 6POS W/SOCK |
| VE-J3V-MY-F1 | CONVERTER MOD DC/DC 5.8V 50W |
| LTC1741CFW | IC ADC 12BIT 65MSPS 48-TSSOP |
| VE-J3T-MY-F4 | CONVERTER MOD DC/DC 6.5V 50W |
| AD7893ANZ-5 | IC ADC 12BIT SRL T/H LP 8DIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9649BCPZ-40 | 功能描述:IC ADC 14BIT 40MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD9649BCPZ-65 | 功能描述:IC ADC 14BIT 65MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD9649BCPZ-80 | 功能描述:IC ADC 14BIT 80MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD9649BCPZRL7-20 | 功能描述:IC ADC 14BIT 20MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD9649BCPZRL7-40 | 功能描述:IC ADC 14BIT 40MSPS 32LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。