Aeroflex 2023A - Brief Technical Description

OPTION 7 FAST PULSE MODULATION
Annex-A-6
Brief technical description
Block diagram Fig. A-4 replaces that given in Chapter 6 in the main body of the manual. This
shows that for an instrument fitted with Option 7:
The front-panel EXT MOD INPUT socket is replaced by the PULSE INPUT socket.
The front-panel former LF OUTPUT socket performs the dual functions of MOD I/O.
The rear-panel PULSE I/P socket is replaced by the 4FSK socket.
10dB
S
PROGRAM
DIVIDER
HARMONIC
GENERATOR
x3, 4, 5
1-BIT
ADC
FRACT
N
CONTROLLER
DC
OFFSET
DC
OFFSET
AM
OFFSET
100 MHz
BFO
A
D
A
D
LEVEL
OFFSET
DAC
AM DEPTH
DAC
AM
FM
SWITCH
MATRIX
TRIGGER
CONTROL
MEMORY
SWEEP
FSK
KEYBOARD
INTERFACE
CPU/
GPIB
RS-232
GPIB
DISPLAY
INTERFACE
ALC
AM
OFFSET
DAC
FFM
CONV
A
D
11dB
0-132 dB
LEVEL
MOD
AM
MOD
10
MHz
to
2.51
GHz
HARMONIC
FILTERS
PULSE
MOD
PULSE
GEN
9 kHz
to
10 MHz
100-110 MHz
FREQ STD
IN-OUT
TRIGGER
2FSK
4FSK
RF OUTPUT
9 kHz-1.1 GHz (2023A)
9 kHz-2.05 GHz (2023B)
9 kHz-2.51 GHz (2025)
0.1 Hz to 100 kHz
MOD I/O
PULSE I/P
Vref
RPP
ATTENUATOR
CONTROL
RF PROCESSING
¸20
STD
SELECT
10
MHz
5 MHz
FM ATTEN
VCO
400-535 MHz
TUNE
FM/ MF
FM/ MF
10
MHz
VCXO
100 MHz
10 MHz
TCXO/
OCXO
PLL
1OR10MHzIN
10 MHz OUT
V TUNE
¸2
¸2
n
¸10
RF
LEVEL
DAC
DSP
C6324
Fig. A-4 Block schematic of instrument fitted with Option 7