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SP8854EKGHCAR PDF预览

SP8854EKGHCAR

更新时间: 2024-10-31 22:30:51
品牌 Logo 应用领域
MITEL /
页数 文件大小 规格书
13页 178K
描述
2·7GHz Parallel Load Professional Synthesiser

SP8854EKGHCAR 数据手册

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SP8854E  
2·7GHz Parallel Load Professional Synthesiser  
Preliminary Information  
Supersedes January 1996 version, DS4238 - 1.2  
DS4238 - 2.0 June 1998  
TheSP8854Eisoneofafamilyofparallelloadsynthesisers  
containing all the elements apart from the loop amplifier to  
fabricate a PLL synthesis loop. Other parts in the series are  
the SP8852E which is fully programmable, requiring tw0 16-  
bit words to set the RF and reference counters and the  
SP8855E which is fully programmable using hard wired links  
or switches.  
The SP8854E is programmed using a 16-bit parallel data  
bus. Data is stored in an internal buffer. The 10-bit program-  
mable reference divider is programmed by connecting the 10  
programming pins either to ground or 15V. The device can  
therefore be programmed with a single transfer from the  
control microprocessor. Hard wired inputs can also control  
the FPD and FREF outputs and the control sense of the loop.  
1
44  
DATA BIT 4  
DATA BIT 3  
DATA BIT 2  
DATA BIT 1  
DATA BIT 0  
STROBE  
REF DIV BIT 0  
REF DIV BIT 1  
REF DIV BIT 2  
REF DIV BIT 3  
REF DIV BIT 4  
REF DIV BIT 5  
REF DIV BIT 6  
REF DIV BIT 7  
REF DIV BIT 8  
REF DIV BIT 9  
0V (PRESCALER)  
RF INPUT  
SP8854E  
RF INPUT  
V
(PRESCALER)  
CC  
V
EE  
LOCK DETECT  
FEATURES  
2·7 GHz Operating Frequency  
Single 5V Supply  
Low Power Consumption <1·3W  
High Comparison Frequency : 20MHz  
High Gain Phase Detector : 1mA/rad  
Zero ‘Dead Band’ Phase Detector  
Wide Range of RF and Reference Division Ratios  
Programming by Single Word Data Transfer  
HC44  
*FPD and FREF outputs are reversed using the control  
direction input, pin 23. The above diagram is correct  
when pin 23 is high.  
ABSOLUTE MAXIMUM RATINGS  
Supply voltage  
20·3V to 16V  
255°C to1100°C  
265°C to 1150°C  
2·5V p-p  
Operating temperature  
Storage temperature  
Prescaler and reference input voltage  
Data inputs  
Fig. 1 Pin connections - top view  
VCC 10·3V  
V
EE 20·3V  
Junction temperature  
1175°C  
THERMAL DATA  
uJC = 5°C/W  
uJA = 53°C/W  
ORDERING INFORMATION  
SP8854E KG HCAR Non-standard temperature range,  
255°C to 1100°C, standard product screening  
ESD PROTECTION  
SP8854E IG HCAR Industrial temperature range,  
240°C to 185°C, standard product screening  
1000V, human body model  

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