Additional Operating Information
5
Agilent 34945A Microwave Switch/Attenuator Driver Module User’s Guide
99
Paired Mode
Drive Modes
The 34945EXT module can drive switches and attenuators using either TTL or
open collector drive methods. The TTL drive mode uses active drive for both
high and low levels and drives a TTL high level when asserted. The open
collector drive provides a current path to ground when asserted.
Figure 5-1. TTL and Open Collector Drive Modes.
The drive mode is set on a per bank basis and is included in the distribution
board’s preset configuration. The drive mode can be changed using the
command:
ROUTe:RMODule:BANK:DRIVe:MODE
LED1 Connector
LED2 Connector
Pin
Use
Pin Use
Pin
Use
Pin
Use
1
+VI
2
SW1 - A
1
+VI
2
SW1 - B
3
+VI
4
SW2 -A
3
+VI
4
SW2 - B
5
+VI
6
SW3 - A
5
+VI
6
SW3 -B
7
+VI
8
SW4 - A
7
+VI
8
SW4 - B
9
+VI
10
SW5 - A
9
+VI
10
SW5 - B
11
+VI
12
SW6 - A
11
+VI
12
SW6 - B
13
+VI
14
SW7- A
13
+VI
14
SW7 - B
15
+VI
16
SW8 - A
15
+VI
16
SW8 - B
TTL Drive
Open Collector
Drive
Drive Active
H
H
L
L
Содержание 34945A
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Страница 22: ...14 Agilent 34945A Microwave Switch Attenuator Driver Module User s Guide 1 About the Instrument ...
Страница 96: ...88 Agilent 34945A Microwave Switch Attenuator Driver Module User s Guide 4 Introduction to Programming ...
Страница 120: ...112 Agilent 34945A Microwave Switch Attenuator Driver Module User s Guide 5 Additional Operating Information ...
Страница 124: ...116 Agilent 34945A Microwave Switch Attenuator Driver Module User s Guide Index ...
