Keysight Technologies E8257D User Manual

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Block Diagram for the Overall E8257D PSG Analog Signal Generator, Service Guide E8251-90359
A21 Rear Panel
Interface
FM Driver
A9 YIG Driver
A6 Frac-N
(Fine Tune)
A5 Sampler
(Coarse Tune)
Synthesis Loop
500-1000 MHz
Sampler/
YO Loop
Phase-Locked
Loop
1 Ghz
YO Phase
Correction
10 MHz
A29 20 GHz Doubler
Low-Band Pulse
.25-3.2 GHz
Carrier
A26 Microwave Interface Deck
Microwave / RF Path
3.2 to 10 GHz
3.2 to 10 GHz
3.2 to 10 GHz
250 kHz
to 3.2 GHz
A30 Modulator Filter
A23 Low-Band
Coupler / Detector
A8 Output
Detected Low Band
A10 ALC
Detected
High Band
A24 Coupler
250 kHz to 20 Ghz.
250 kHz to 40 Ghz,
250 kHz to 50 GHz,
or
250 kHz to 67/70 GHz
RF Output
AT1
115 dB Attenuator
(Option 1E1)
3.2 to 20 GHz
10 GHz to
20 GHz
250 KHz to
40 GHz
or
250KHz to
70 GHz
250 KHz to 20 GHz
(Opt 520)
A12 Pulse
Modulator
(Opt UNW)
High-Band ALC
Low-Band ALC
High-Band
Pulse
FM
Scaling
Ramp
Sweep
f Lock
VCO
A25 Detector
Reference (Option UNR/UNX &
Instruments with serial
prefix >US4805/MY4805)
A32 10 MHz
Crystal Oscillator
Reference (Standard)
1 GHz
10 MHz
GPIB
LAN
Auxiliary Interface
Trigger In
Trigger Out
Sweep Out
Rear Panel
Front Panel*
Pulse Video Out
Pulse Sync Out
LF Output
Ext 1 Input
Ext 2 Input
Pulse/Trigger Gate Input
ALC Input
ALC Loop
120 Vac
or
240 Vac
A22 Line Module
A19 Power Supply
A18 CPU
A31 Motherboard
FM Coil
Main Coil
Source Module
Interface
A11 Pulse/Analog
Modulation
Generator
Source Settled
250 kHz
to
3.2 GHz
YO Phase Lock
A7 Reference
AM
Phase Lock
Interface
Pretune
Sweep
Generator
Sweep
Level
Control
A27 40 GHz Doubler
(models < 40GHz)
or
A36 Quadraplier
(models > 40 Ghz)
Sweep
Out
DAC
10 MHz Out
Low-Band
Divider and
Filter
10 MHz EFC
10 MHz In
250 kHz
to 3.2 GHz
Sweep Out
Z/Blank
Stop Sweep
Trigger &
Timing
Control
A7 Reference
A28 YIG
Oscillator
RF Output
* Note: Option 1EM moves all
connectors to the rear panel.
p-anaphoto_top
A32
A19
A18
A5
A6
A7
A8
A9
A10
A11
A38
A23
AT1
A27/A37
A26
A24
A20
A25
A25B
Photograph: 67 Ghz Model (Option 567)
A38 LB
Switch Filter
(Opt 1EH)
Option UNR/UNX
Only

Keysight Technologies E8257D Specifications

General

Brand	Keysight Technologies
Model	E8257D
Category	Portable Generator
Language	English