Datasheet > SP8855E

SP8855E

更新时间： 2024-11-20 22:50:11

品牌	Logo	应用领域
MITEL		/
页数	文件大小	规格书
14页	172K
描述
2.8GHz Parallel Load Professional Synthesiser

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SP8855E 数据手册

SP8855E

2.8GHz Parallel Load Professional Synthesiser

Advance Information

Supersedes version in January 1996 Professional Products IC Hanbook, HB2480-3.0

DS4239 - 3.0 March 1999

The SP8855E is one of a family of parallel load

synthesisers containing all the elements apart from the loop

amplifier to fabricate a PLL synthesis loop. Other devices in

the series are the SP8852E which is a fully programmable

device requiring two 16 bit words to set the RF and reference

counters, and the SP8854E which has hard wired reference

counter programming and requires a single bit word to pro-

gram the RF divider. The SP8855E replaces the existing

SP8855D.

PIN 1

The SP8855E is intended for applications where a fixed

synthesiser frequency is required although it can also be used

where frequency selection is set by switches. In general the

device will be programmed by connecting the programming

pins to either V_CCor ground. Additional hard wired inputs can

be used to control the F_pdand F_refoutputs set the control

direction of the loop and select the phase detector gain.

Another input may be used to disable the phase detector

output.

HC44

The device is available in both plastic (HP) and ceramic

(HC) J-leaded 44-lead chip carrier. Ambient temperature

ranges available are shown in the ordering information.

OPTIONAL

PIN 1

REFERENCE

FEATURES

■ 2.8GHz Operating Frequency (IG GRADE)

■ Single 5V Supply Operation

HP44

■ High Comparison Frequency 50MHz

■ High Gain Phase Detector 1mA/rad

■ Programmable Phase Detector Gain

■ Zero "Dead Band" Phase Detector

■ Wide range of RF and Reference Divide Ratios

■ Programming by Hard Wired Inputs

■ Low cost plastic package option

■ GPS HI-REL level a screened option

Description

Pin Description

Control Direction

Input bus bit 10

Input bus bit 9

Input bus bit 8

Input bus bit 7

Input bus bit 6

Input bus bit 5

Input bus bit 4

Input bus bit 3

Input bus bit 2

Input bus bit 1

Input bus bit 0

0V (prescaler)

RF input

V_CC+ 5V (prescaler)

V_EE0V

Lock detect output

C-lock detect

Rset

Charge pump output

Charge pump ref.

F_ref/F_pdenable

F_pd*

F_ref*

+5V

Ref. osc capacitor

Ref in/XTAL

Reference bit 9

Reference bit 8

Reference bit 7

Reference bit 6

Reference bit 5

Reference bit 4

Reference bit 3

Reference bit 2

Reference bit 1

Reference bit 0

Phase Detect Enable

Phase Detect Gain 1

ABSOLUTE MAXIMUM RATINGS

Supply voltage

-0.3V to 6V

-65 °C to +150°C

-55°C to +100°C

2.5V p-p

Storage temperature

Operating temperature

Prescaler & reference Input Voltage

Data Inputs

Phase Detect Gain

Input bus bit 13

Input bus bit 12

Input bus bit 11

V_CC+0.3V

V_EE-0.3V

Junction temperature

+ 175°C (HC package)

+ 150°C (HP package)

*Fpd and Fref outputs are reversed using the Control Direction

input. The table above is correct when pin 23 is high.

Fig.1 Pin connections - top view

12 3 4 5 6 7...14

中文翻译

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与SP8855E相关器件

型号	品牌	获取价格	描述	数据表
SP8855E/IG/HCAR	MICROSEMI	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44, CERAMIC, LCC-44
SP8855E/IG/HCAR	ZARLINK	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44, LDCC-44
SP8855E/IG/HCAR	ROCHESTER	获取价格	PLL FREQUENCY SYNTHESIZER, 2800 MHz, CQCC44, LDCC-44
SP8855E/IG/HPAR	ZARLINK	获取价格	PLL Frequency Synthesizer, BIPolar, PQCC44, PLASTIC, LCC-44
SP8855E/IG/HPAR	ROCHESTER	获取价格	PLL FREQUENCY SYNTHESIZER, 2800 MHz, PQCC44, PLASTIC, LCC-44
SP8855E/KG/HCAR	ZARLINK	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44, LDCC-44
SP8855E/KG/HCAR	MICROSEMI	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44, CERAMIC, LCC-44
SP8855E/MA/HCAR	ZARLINK	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44, LDCC-44
SP8855EIGHCAR	DYNEX	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44
SP8855EKGHCAR	DYNEX	获取价格	PLL Frequency Synthesizer, BIPolar, CQCC44

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