欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: ADF4154BRU-REEL
廠商: ANALOG DEVICES INC
元件分類: XO, clock
英文描述: Fractional-N Frequency Synthesizer
中文描述: PLL FREQUENCY SYNTHESIZER, 4000 MHz, PDSO16
封裝: MO-153AB, TSSOP-16
文件頁數: 19/20頁
文件大小: 470K
代理商: ADF4154BRU-REEL
ADF4154
ADuC812 Interface
Figure 24 shows the interface between the ADF4154 and the
ADuC812 MicroConverter. Since the ADuC812 is based on an
8051 core, this interface can be used with any 8051-based
microcontroller. The MicroConverter is set up for SPI master
mode with CPHA = 0. To initiate the operation, bring the I/O
port driving LE low. Each latch of the ADF4154 needs a 24-bit
word, which is accomplished by writing three 8-bit bytes from
the MicroConverter to the device. After the third byte is written,
the LE input should be brought high to complete the transfer.
Rev. 0 | Page 19 of 20
ADSP-21xx
ADF4154
SCLOCK
SCLK
SDATA
LE
MUXOUT
(LOCK DETECT)
DT
TFS
I/O FLAGS
0
Figure 25. ADSP-21xx to ADF4154 Interface
PCB DESIGN GUIDELINES FOR CHIP SCALE
PACKAGE
The lands on the chip scale package (CP-20) are rectangular.
The printed circuit board pad for these should be 0.1 mm
longer than the package land length and 0.05 mm wider than
the package land width. The land should be centered on the pad.
This ensures that the solder joint size is maximized.
When operating in the mode described, the maximum
SCLOCK rate of the ADuC812 is 4 MHz. This means that the
maximum rate at which the output frequency can be changed is
180 kHz.
ADuC812
ADF4154
SCLOCK
SCLK
SDATA
LE
MUXOUT
(LOCK DETECT)
MOSI
I/O PORTS
0
The bottom of the chip scale package has a central thermal pad.
The thermal pad on the printed circuit board should be at least
as large as this exposed pad. On the printed circuit board, there
should be a clearance of at least 0.25 mm between the thermal
pad and the inner edges of the pad pattern to avoid shorting.
Thermal vias may be used on the printed circuit board thermal
pad to improve thermal performance of the package. If vias are
used, they should be incorporated into the thermal pad at
1.2 mm pitch grid. The via diameter should be between 0.3 mm
and 0.33 mm, and the via barrel should be plated with 1 oz. of
copper to plug the via.
Figure 24. ADuC812 to ADF4154 Interface
ADSP-2181 Interface
Figure 25 shows the interface between the ADF4154 and the
ADSP-21xx digital signal processor. As discussed previously, the
ADF4154 needs a 24-bit serial word for each latch write. The
easiest way to accomplish this using the ADSP-21xx family is to
use the autobuffered transmit mode of operation with alternate
framing. This provides a means for transmitting an entire block
of serial data before an interrupt is generated. Set up the word
length for eight bits and use three memory locations for each
24-bit word. To program each 24-bit latch, store each of the
three 8-bit bytes, enable the autobuffered mode, and write to the
transmit register of the DSP. This last operation initiates the
autobuffer transfer.
The user should connect the printed circuit board thermal pad
to AGND.
相關PDF資料
PDF描述
ADF4154BRU-REEL7 Fractional-N Frequency Synthesizer
ADF4193 Low Phase Noise, Fast Settling PLL Frequency Synthesizer
ADF4193BCPZ Low Phase Noise, Fast Settling PLL Frequency Synthesizer
ADF4193BCPZ-RL Low Phase Noise, Fast Settling PLL Frequency Synthesizer
ADF4193BCPZ-RL7 Low Phase Noise, Fast Settling PLL Frequency Synthesizer
相關代理商/技術參數
參數描述
ADF4154BRU-REEL7 功能描述:IC FRACTION-N FREQ SYNTH 16TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器,PLL,頻率合成器 系列:- 標準包裝:1,000 系列:Precision Edge® 類型:時鐘/頻率合成器 PLL:無 輸入:CML,PECL 輸出:CML 電路數:1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤,16-MLF? 供應商設備封裝:16-MLF?(3x3) 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND
ADF4154BRUZ 功能描述:IC FRAC-N FREQ SYNTH 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器,PLL,頻率合成器 系列:- 標準包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時鐘 電路數:1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/無 頻率 - 最大:1GHz 除法器/乘法器:是/無 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-LSSOP(0.175",4.40mm 寬) 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR
ADF4154BRUZ-RL 功能描述:IC FRACTION-N FREQ SYNTH 16TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器,PLL,頻率合成器 系列:- 標準包裝:1,000 系列:Precision Edge® 類型:時鐘/頻率合成器 PLL:無 輸入:CML,PECL 輸出:CML 電路數:1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤,16-MLF? 供應商設備封裝:16-MLF?(3x3) 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND
ADF4154BRUZ-RL7 功能描述:IC FRACTION-N FREQ SYNTH 16TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器,PLL,頻率合成器 系列:- 標準包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時鐘 電路數:1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/無 頻率 - 最大:1GHz 除法器/乘法器:是/無 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-LSSOP(0.175",4.40mm 寬) 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR
ADF4155BCPZ 功能描述:IC PLL FRAC-N FREQ SYNTH 20LFCSP 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態:有效 類型:* PLL:是 輸入:LVDS,LVPECL 輸出:時鐘 電路數:1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/無 頻率 - 最大值:4GHz 分頻器/倍頻器:是/無 電壓 - 電源:3.135 V ~ 3.465 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-WFQFN 裸露焊盤,CSP 供應商器件封裝:24-LFCSP-WQ(4x4) 標準包裝:1
主站蜘蛛池模板: 和平区| 綦江县| 田东县| 依兰县| 安新县| 枞阳县| 尼木县| 九江县| 大化| 会宁县| 舟山市| 大姚县| 龙口市| 华容县| 丽江市| 汝城县| 兴业县| 安泽县| 克山县| 莱阳市| 扎赉特旗| 双江| 洪洞县| 钦州市| 巨鹿县| 兰溪市| 托里县| 盐津县| 米泉市| 黄骅市| 运城市| 西安市| 察隅县| 富顺县| 信阳市| 鄂尔多斯市| 墨竹工卡县| 科技| 乐安县| 凤城市| 郸城县|