參數(shù)資料
型號(hào)： AD9649BCPZRL7-20
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 16/32頁(yè)
文件大小： 0K
描述： IC ADC 14BIT 20MSPS 32LFCSP
標(biāo)準(zhǔn)包裝： 1,500
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： 帶卷 (TR)
輸入數(shù)目和類型： 2 個(gè)單端，單極；1 個(gè)差分，單極
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
CXS3102A2027P CONN RCPT 14POS PNL MNT PIN
SP3239ECA-L/TR IC TXRX RS232 INTELLIGENT 28SSOP
MS27467T11F98PD CONN PLUG 6POS STRAIGHT W/PINS
MS3102R12-5P CONN RCPT 1POS BOX MNT W/PINS
MS27472E12B35PA CONN RCPT 22POS WALL MNT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(biāo)準(zhǔn)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(gè)單端，單極；1 個(gè)單端，雙極
AD9649BCPZRL7-65 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:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極
AD9649BCPZRL7-80 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:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極
AD9649W 功能描述:IC ADC 制造商:analog devices inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1
AD9649XCPZ-80 功能描述:14 Bit Analog to Digital Converter 1 Input 1 Pipelined 32-LFCSP-WQ (5x5) 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):上次購(gòu)買時(shí)間 位數(shù):14 采樣率（每秒）:80M 輸入數(shù):1 輸入類型:差分 數(shù)據(jù)接口:并聯(lián) 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):管線 參考類型:內(nèi)部 電壓 - 電源，模擬:1.7 V ~ 1.9 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.6 V 特性:- 工作溫度:-40°C ~ 85°C 封裝/外殼:32-VFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:32-LFCSP-WQ（5x5） 標(biāo)準(zhǔn)包裝:1
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*