Agilent Technologies E1439 User Manual page 223

Highpass
Filter
52 MHz
IF
Baseband
Bypass
Signal
AC
DC
Clock Generation
The source for a clock signal is the 95 MHz crystal oscillator inside the E1439. This oscillator can
free run or be locked to an external reference signal through the front-panel BNC "Ext
Clock/Ref". This signal can be TTL, ECL, or sine wave. The oscillator can also be locked to a
reference routed via the backplane. A 2.5 MHz reference signal is available to be routed out the
front panel or the backplane to lock additional E1439s.
Amplifier
12 dB
IF
Lowpass
Filter
Baseband
0-36 MHz
Offset
DAC
Attenuator
1-16 dB
Amplifier
6dB
To Digital Filters
Module Description
Block diagram and description
Bandpass
Filter
52-88 MHz
Attenuator
1-16 dB
Lowpass
Filter
95 MHz
0-43 MHz
Sampling
ADC
213