NJ88C33 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc

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NJ88C33

Frequency Synthesiser (I2C BUS Programmable)

Zarlink Semiconductor Inc 

NJ88C33

Frequency Synthesiser (I2C BUS Programmable)

Advance Information

DS2429 - 3.2 September 1994

The NJ88C33 is a synthesiser circuit fabricated on Zarlink

Semiconductor's 1.4 micron CMOS process, assuring very

high performance. It is I2C compatible and can also be

programmed at up to 5MHz. It contains a 16-bit R counter, a

12-bit N counter and a 7-bit A counter.

A digital phase comparator gives improved loop stability

with current source outputs to reduce loop components. A

voltage doubler is provided for the loop driver to improve

control voltage range to the VCO when operating at low supply

voltages.

DP14

FEATURES

s Easy to Use

s Low Power Consumption (15mW)

s Single Supply 2.5V to 5.5V

s Digital Phase Comparator with Current Source

Outputs

s Serial (I2C Compatible) Programming, 5MHz max

s Channel Loading in 8µs

s 150MHz Input Frequency Without Prescaler at 4.5V

(52MHz at 2.7V)

s Standby Modes

s Use of Two-Modulus Prescaler is Possible

APPLICATIONS

s Cordless Telephones (CT2, DECT)

s Cellular Telephones (GSM, PCN, ETACS)

s Hand Held Marine Radios

s Sonarbuoys

s Video Clock generators

MP14

Fig.1 Pin connections (not to scale) - top views

ABSOLUTE MAXIMUM RATINGS

Supply voltage, VDD

Input voltage, VIM1

Output voltage on pin 13, VIM2

Storage temperature, Tstg

-0.3V to 7V

-0.3 to VDD +0.3V

-VDD to 0V

-55°C to +125°C

ORDERING INFORMATION

NJ88C33 MA DP (Industrial - Plastic DIL package)

NJ88C33 MA MP (Industrial - Miniature Plastic DIL package)

Fig.2 Simplified block diagram of NJ88C33

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