參數(shù)資料
型號(hào)： AD9639BCPZRL-170
廠商： Analog Devices Inc
文件頁數(shù)： 17/36頁
文件大小： 0K
描述： IC ADC 12B 170MSPS QUAD 72LFCSP
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 12
采樣率（每秒）： 210M
數(shù)據(jù)接口： 串行，SPI?
轉(zhuǎn)換器數(shù)目： 4
功率耗散（最大）： 1.39W
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： 72-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 72-LFCSP
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 8 個(gè)單端，單極；4 個(gè)差分，單極
其它名稱： AD9639BCPZRL-170DKR
AD9639
Data Sheet
Rev. B | Page 24 of 36
Continuous Synchronization
Continuous synchronization is part of the JESD204 specification.
The 12-bit word requires two octets to transmit all the data. The
two octets (MSB and LSB) are called a frame. When scrambling
is disabled and the LSB octets of two consecutive frames are the
same, the second LSB octet is replaced by a K28.7 comma symbol.
The receiver is responsible for replacing the K28.7 comma
symbol with the LSB octet of the previous frame.
When scrambling is enabled, any D28.7 symbols found in the
LSB octet of a frame are replaced with K28.7 comma symbols.
The receiver is responsible for replacing the K28.7 comma
symbols with D28.7 symbols when in this mode.
By looking for K28.7 symbols, the receiver can ensure that it is
still synchronized to the frame boundary.
07973-
205
IF /K28.7/
/REPLACE_K28.7/
IF (OCOUNTER == PREVIOUS_POSITION) AND /VALID/
/RESET_OCTET_COUNTER/
END IF;
IF /VALID/ | (OCOUNTER == N-1)
PREVIOUS_POSITION = OCOUNTER
END IF;
Figure 56. Pseudocode for Data Dependent Frame Synchronization in Receiver
Table 9. Variables and Functions in Data Dependent Frame Synchronization
Variable
Description
N
Number of octets in frame (octet indexing starts from 0).
/K28.7/
Asserted when the current symbol corresponds to the K28.7 control character.
OCOUNTER
Counter used to mark the position of the current octet in the frame.
PREVIOUS_POSITION
Variable that stores the position in the frame of a K28.7 symbol.
/REPLACE_K28.7/
Replace K28.7 at the decoder output as follows. When scrambling is disabled, replace K28.7 with the LSB
octet that was decoded at the same position in the previous frame; when scrambling is enabled, replace
K28.7 at the decoder output with D28.7.
/RESET_OCTET_COUNTER/
Reset octet counter to 0 at reception of next octet.
/VALID/
Asserted by receiver to indicate that the current symbol is a valid symbol given the current running disparity.
相關(guān)PDF資料
PDF描述
SP332ET-L/TR IC TXRX RS232/485 SRL 28WSOIC
IDT7284L15PAI IC FIFO 2048X18 15NS 56TSSOP
IDT7284L12PA IC FIFO 2048X18 12NS 56TSSOP
ADM5170ANZ IC TXRX RS232/423 OCTAL 28-DIP
VI-26R-MX-F1 CONVERTER MOD DC/DC 7.5V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9639BCPZRL-210 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Quad 12 Bit 210 MSPS Seria 1.8V ADC RoHS:否 制造商:Analog Devices 通道數(shù)量: 結(jié)構(gòu): 轉(zhuǎn)換速率: 分辨率: 輸入類型: 信噪比: 接口類型: 工作電源電壓: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體:
AD9640 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 80/105/125/150 MSPS, 1.8 V Dual Analog-to-Digital Converter
AD9640/PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 80/105/125/150 MSPS, 1.8 V Dual Analog-to-Digital Converter
AD9640-105EBZ 功能描述:ADC 14BIT 105MSPS DUAL 64-LFCSP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
AD9640-125EBZ 功能描述:ADC 14BIT 125MSPS DUAL 64-LFCSP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。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。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

我的聯(lián)系方式

*
*
*