Agilent Technologies HP 8642A/B Specifiche Scaricare il pdf (Pagina 296)

Block Diagram Notes

Switches on tine Block Diagram are shown in

their HP-IB preset state. At Interface turn-on

with no controlier connected, the power-up state

is the same as the HP-IB preset state except:

a ATTEN 1 is set to an open-circuit

(non-programmable) state, and

b the switches of ciuster S5 through S8 are

ali open.

2.

The transfer function of GAIN 2 also has a

lead-lag response as follows:

33.5 kHz

67 kHz

3. The transfer function of Lag-Lead Network 1 is

as follows:

67 kHz

26 dB

3.35 kHz

To this transfer function is added a

programmable lag-lead with the following poles

and zeros:

Lag-Lead

Number

0

1

2

3

4

5

6

7

Pole

Frequency

4.82 Hz

8.01 Hz

9.17 Hz

9.68 Hz

9.95 Hz

9.95 Hz

9.95 Hz

9.95 Hz

Zero

Frequency

9.95 Hz

40.1 Hz

115.9 Hz

306 Hz

784 Hz

1.985 kHz

5.00 kHz

12.58 kHz

Attenuation

6 dB

14 dB

22 dB

30 dB

38 dB

46 dB

54 dB

62 dB

4.

Assemblies A6. A8, and A9 are controlled as

follows:

Control Line

L17

L18

L17,

L18

State

A6

Off

Off

On

A8

On

On

Off

A9

On

Off

Off

HP

118+8A PHASE

NOISE!

INTER

A4

PHA

1.2

GHz TO

-^J

1 O

18

GHz

MICROWAVE

PHASE DETECTOR

COPTION 211)

Z\ >^-Q

5

MHz TO

1.6

GHz

NOISE

INPUT

INPUT FROM

I

HP3585A

.TRACKING GENERATOR

SPECTRUM ANALYZER

TERMINATE 50ft

AUX MONITOR

-Q-

5 The transfer functions of Lag-Lead Network 2

on A4 and the Lag-Lead Network on A3 are

both as follows

1

3.35 kHz

2C dB

33.5 kHz

6. The passband gain of the High-Pass Filters is 2

{as measured from TP17 to the respective filter

output). The gain settings of the GAIN 3

amplifier and attenuator include the passband

gain of the High-Pass Filters.

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