Keysight Technologies E8257D Service Manual page 165

A26 Micro Interface Deck
MODF_AMP_ON_H
A30 Modulator
Filter
3.2 - 20 GHz
from A29
20 Ghz Doubler ALC
J1
Pulse
from A11
Pulse / Analog
Modulation Generator
57d_67-70ghz-path
MODF_PLS_
ENB_L
6
MODF_PATH
A36 Quadraplier
10-20 J4
X2
221
5-8
0-20 GHz
13-20
J2
QPLR_PRELEVEL_DAC
8-13
3.2
QPLR_PRECHARGE_DAC
QPLR_PRELEVEL_OPEN_LOOP_L
3-5
QPLR_ALC_0_20_SW_L
250 kHz - 3.2 GHz
from A23 Low Band
Coupler / Detector
QPLR_PATH_20_40_H
QPLR_20_40_DET_H
QPLR_40_70_DET_H
QPLR_FLB
20-35
X2
225
20-40 GHz
ALC
Pulse
Prelevel
Loop
Prelevel
DAC
40 - 70 GHz ALC Mod
from A10 ALC
20 - 40 GHz ALC Mod
from A10 ALC
3.2 - 20 GHz ALC Mod
from A10 ALC
Quadraplier Block for the E8257D PSG Analog RF Path
(Analog Models Over 40 GHz), Service Guide E8251-90359
QPLR_40_70_GAIN_ADJ_DAC
QPLR_20_40_BIAS_EN_H
QPLR_PULSE_EN_L
QPLR_PULSE_BELOW_40_L
QPLR_20_26_5_FIL_L
QPLR_FIL_55_70_L
QPLR_40_70_BIAS_EN_H
40-51 GHz
ALC Gain Pulse
40-70 GHz
956x4
51-70 GHz
A24 Coupler
A25 Detector
20-40 GHz
7
906x4
QPLR_0_20_SW_L
0-20 GHz
from A11
Pulse / Analog
Modulation Generator
ATTEN
5
AT1
Option 1E1
Attenuator
2-67 GHz
10
9
10/20/20/20/20 RF
Out
Optional
Attenuator
to A10
ALC