A70 4-Port And A75 2-Port Low Frequency Extension (Lfe) Board - Keysight Technologies N5247B Service Manual

Theory of Operation
Synthesized Source Group Operation
Table 5-5 PWR I/O Connector Pin Assignments
DB-9 Female Connector
Pin Name
1 +15V
2 -15V
3 AnalogOut1
4 AnalogOut2
5 ACOM
6 GndSense
7 AnalogIn1
8 AnalogIn2
9 Power Button

A70 4-Port and A75 2-Port Low Frequency Extension (LFE) Board

Provides a 900 Hz to 100 MHz LFE signal for measurements. Refer to
www.keysight.com/find/pna.
5-32
Description
+15 V @ 400 mA
-15 V @ 400 mA
Analog Output Voltage
Programmable ±10 V @ 100 mA out
Nominally 0 ohms
2.44 mV typical resolution
1 MHz BW
Analog Output Voltage
Programmable ±10 V @ 100 mA out
Nominally 0 ohms
2.44 mV typical resolution
1 MHz BW
System ground
Ground sense for Analog In and Analog Out
Connected with 51.1 ohms to ACOM
Analog input:
±10 V @ 1.22 mV typical resolution
Rin > 1 M-ohm
BW ≈ 1 MHz
ADC conversion time < 1 us typical
Analog input:
±10 V @ 1.22 mV typical resolution
Rin > 1 M-ohm
BW ≈ 1 MHz
ADC conversion time < 1 us typical
Open collector input
Active low replicates power button key press.
Keysight N5247B Service Guide