Agilent Technologies 8590 Series Service Manual page 451

8594Q OPTION 190
HARDWARE BLOCK DIAGRAM
sq15
SPECTRUM ANALZYER
A3A18
INPUT 50
0-70 dB
A3A17
ATTN
10 dB
STEP AT
G=+23 +3dB _
NF= 7 dB
A190A1 RF
70 MHz
RF IF
LO
2 dB STEP
I
A190A3 DSP
8594DY
HOST/PROCESSOR
CARD CAGE BUS
321.4 MHz
RF IF RF IF
LO LO
3-6.8 GHz 3.6 GHz
A190A2 DEMOD
SAW
FILTER
6.9 MHz
8
RF IF
AGC LO
4
CARRIER
I
LO
2
HOST
DSP
INTERFACE
RAM
RBW
RF IF
LO
300 MHz
4x SYMBOL
RATE
I
EQ
A
FIR DEMOD Q
D
C
SYMBOL
CLOCK
SYNCH
EEPROM
FOLDOUT 10-5. 8594Q OPTION 190 DVB-C QAM ANALYZER
HARDWARE BLOCK DIAGRAM.
TO
BASEBAND
DETECTOR
CLOCK
DATA TO FEC
I
MAP
Q
I
DMA
SAMPLE
RAM