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PRL-258 Specifications

*OBSOLETE* The PRL-258 has been discontinued. New applications should use the PRL-174ANT for clock generation, or the PRL-260ANT for frequency division. Information about the PRL-258 is for information only.

Basic Lab Tools > Frequency Dividers > PRL-258 > Specifications

(0° C ≤ TA ≤ 35° C)*

Symbol

Parameter

Min

Typ

Max

Unit

Comments

Rin

Input Resistance

49.5

50

50.5

 

VTT

Input Termination Voltage

-2.2

-2

-1.8

V

Ext Clk & EN inputs

IDC

DC Input Current

 

-520

-550

mA

INT f=500MHz

VDC

DC Input Voltage

-8

-9

-11

V

 

VAC

AC/DC Adapter Input Voltage

103

115

127

V

 

tPLH1

Propagation Delay to f output

 

2100

 

ps

From Ext Clk input

tPLH2

Propagation Delay to f/2, f/4, or f/8 output

 

2500

   

From Ext Clk input

tPLH3

Propagation Delay to f output

 

2500

   

From EN input

tr/tf1

Rise/Fall Times (20%-80%), f / f outputs

 

500

800

ps

Note (1)

tr/tf2

Rise/Fall Times (20%-80%), f/n / f/n outputs

 

750

850

ps

Note (1)

tSKEW1

Skew between f and f outputs

 

50

100

ps

 

tSKEW2

Skew f/2 ↔f/2, f/4 ↔ f/4 or f/8 ↔ f/8

 

100

150

ps

 

tSKEW3

Skew between f and any f/n or f/n outputs

 

400

550

ps

 

TSKEW4

Skew between f/n and any other f/n outputs

 

150

200

ps

n≠ 1

fMAX

Max clock frequency

1

1.2

 

GHz

Note (2)

∆ f

Frequency Stability

 

100

 

ppm

 
 

Frequency Jitter

 

20

50

ps

 
 

Size

 

1.3x
2.9x
3.9

 

in.

 
 

Weight

 

7

 

Oz

 

*All dynamic measurements are made with outputs terminated into 50 Ω /-2 V, using the PRL-550NQ4X, four channel ECL Terminators, connected to a 50 Ω input sampling oscilloscope.

Notes:

(1). The output rise and fall times of each channel are measured with its complementary output terminated into 50 Ω /-2 V. An unused complementary 50 Ω output must be either terminated into 50 Ω /-2 V or AC coupled into a 50 Ω load; otherwise, output waveform distortion and rise time degradation will occur. Use the PRL-504 or PRL-508, four and eight channel ECL Termination modules, respectively, for the 50 Ω /-2 V termination. Use the PRL-550NQ4X four channel ECL Terminator for the 50 Ω /-2 V termination and for connection of ECL signals to 50 Ω input oscilloscopes.

(2). fMAX is measured by dividing each pair of differential outputs by four, using the PRL-255, and then measured using the PRL-550NQ4X four channel ECL Terminator connected to a sampling oscilloscope.


PRL-258 | Detail | DiagramDatasheet