![background image](http://html1.mh-extra.com/html/texas-instruments/ri-mod-tx2a/ri-mod-tx2a_reference-manual_1097016003.webp)
18 November 1996
Multiplexer Module (TX2A/TX4A)
MUX-3
Contents
1. Introduction ............................................................................................................... 5
1.1 General ................................................................................................................. 5
1.2 Product Description ............................................................................................. 5
1.3 Product Option Coding ........................................................................................ 5
1.4 Conventions ......................................................................................................... 5
2. Product Function ....................................................................................................... 6
2.1 Description .......................................................................................................... 6
2.2 Multiplexer Connectors and Jumpers .................................................................. 11
2.2.1 Connectors .................................................................................................. 11
2.2.2 Jumpers ....................................................................................................... 13
3. Specifications ............................................................................................................ 14
3.1 Absolute Maximum Ratings ................................................................................ 14
3.2 Recommended Operating Conditions .................................................................. 14
3.3 Electrical Characteristics ..................................................................................... 15
3.4 Timing Characteristics ......................................................................................... 15
3.5 Mechanical data ................................................................................................... 16
4. Installation and Use of the 4 Channel Multiplexer Module ...................................... 17
4.1 Power Supply ....................................................................................................... 17
4.1.1 Supply Requirements .................................................................................. 17
4.2 Antenna Requirements ........................................................................................ 17
4.3 Connecting Cable ................................................................................................ 18
4.4 Antenna Resonance Tuning.................................................................................. 18
Figures
Figure 1: Top View ........................................................................................................ 7
Figure 2: Block Diagram ................................................................................................ 7
Figure 3: Configuration of TIRIS Standard TX/RX Antennas ....................................... 8
Figure 4: Configuration for Input Signals CSA, CSB and Enable ................................. 8
Figure 5: Connection of Multiplexer to RF Module ....................................................... 9
Figure 6: Connection of Multiplexer to S25x0 Reader ................................................... 10
Figure 7: Jumper Locations ............................................................................................. 13
Figure 8: Module Layout and Dimensions ..................................................................... 16
Tables
Table 1: J1 Pin Functions ............................................................................................... 11
Table 2: J4 Pin Functions ............................................................................................... 11
Table 3: J3 Pin Functions ............................................................................................... 12
Table 4: J6 Pin Functions ............................................................................................... 12
Table 5: TX/RX Channel Selection ................................................................................ 12
Table 6: Size and Weight ............................................................................................... 16
Table 7 Power Supply Ripple Specifications ................................................................. 17
Table 8: Antenna Characteristics ................................................................................... 18