SRS Labs SR625 Скачать руководство пользователя страница 3

2

SPECIFICATIONS:

2.0 GHz Prescaler

Input

Impedance

50 

Maximum Input level

+23dBm

Frequency Range

50 MHz - 2.0 GHz

Sensitivity

See Figure below

Output

Expected  Load

50 

Frequency

1/10 of the input frequency

Waveform

square wave, 700 mV pk-pk, +500 mV DC

-40.00

-30.00

-20.00

 -10.00

0.000

10.00

20.00

In

put

 am

p

li

tude

 (

d

B

m

)

1000

1200

1400

1600

1800

Input frequency (MHz)

Prescaler Sensitivity (Typical)

Maximum amplitude

Minimum amplitude

2000

Rubidium Timebase

(see Operation Manual of Rb Oscillator)

Frequency

10 MHz 

Accuracy at Shipment

± 5 E-11

One Day Stability

4E -11/day

Long Term Drift

 5E -11/month, 

 5E -10/yr

Short Term Stability

1 Second (Allan Variance): 1 E -10
10 Second  (Allan Variance): 3.16 E -11
100 Second  (Allan Variance): 1 E -11

Warm-up time

10 minutes to meet short term stability

Содержание SR625

Страница 1: ...BIDIUM TIMEBASE PRESCALER 1290 D Reamwood Avenue Sunnyvale CA 94089 U S A Phone 408 744 9040 Fax 408 744 9049 email infor thinkSRS com www thinkSRS com Copyright 1994 by SRS All Rights Reserved Revisi...

Страница 2: ...fuse Remove the small printed circuit board and select the operating voltage by orienting the board so that the desired voltage is visible when it is pushed firmly back into its slot Rotate the fuse...

Страница 3: ...20 00 Input amplitude dBm 1000 1200 1400 1600 1800 Input frequency MHz Prescaler Sensitivity Typical Maximum amplitude Minimum amplitude 2000 Rubidium Timebase see Operation Manual of Rb Oscillator F...

Страница 4: ...rned on RF INPUT BNC accepts signals from 50 MHz to 2 0 GHz see Figure 3 for sensitivity curve The input impedance is 50 The maximum allowable input level is 23dBm 3 15 Vrms into 50 The shield of the...

Страница 5: ...sine wave 50 impedance The shield of this output is connected to earth ground CONFIGURING SR620 The SR620 s default timebase is its own internal source To use the Rb timebase the configuration of the...

Страница 6: ...mic 50V SMT 1206 10 X7R C 10 5 00298 568 01U Cap Ceramic 50V SMT 1206 10 X7R C 11 5 00298 568 01U Cap Ceramic 50V SMT 1206 10 X7R C 12 5 00298 568 01U Cap Ceramic 50V SMT 1206 10 X7R C 13 5 00298 568...

Страница 7: ...Resistor R 22 4 01448 461 51 Thick Film 5 200 ppm Chip Resistor R 23 4 01448 461 51 Thick Film 5 200 ppm Chip Resistor R 24 4 01448 461 51 Thick Film 5 200 ppm Chip Resistor R 25 4 01448 461 51 Thick...

Страница 8: ...Knobs Z 0 0 00256 043 6 SHOULDER Washer nylon Z 0 0 00263 052 3 22 Wire 22 UL1007 Z 0 0 00264 052 9 1 2 22 RD Wire 22 UL1007 Z 0 0 00266 052 8 1 2 22 BLK Wire 22 UL1007 Z 0 0 00306 026 4 40X3 16PP Sc...

Страница 9: ...8...

Страница 10: ...9...

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