User's Manual

Viewsonic Tweety RF Remote Rev 2.9A November 05, 2001
Universal Electronics Inc. Confidential Page 6 of 63
Table of Contents
Product Revision History ...........................................................................................................................................................................3
1 Purpose and Scope ..................................................................................................................................................................... 8
1.1 Description.................................................................................................................................. 8
1.2 Project Type ................................................................................................................................8
2 Applicable Documents .............................................................................................................................................................. 8
2.1 Project Documentation ........................................................................................................... 8
2.1.1 Customer Specification ............................................................................................... 9
2.1.2 Other Product Documentation ................................................................................. 9
2.2 UEI Standard Documentation
.............................................................................................. 9
2.2.1 UEI Standard Glossary.................................................................................................. 9
2.2.2 UEI Standard Hardware General Information .................................................... 9
2.2.3 UEI Standard Operational Features Descriptions ............................................ 9
2.2.4 UEI Standard Testing Procedures............................................................................ 9
3 Functional Requirements ....................................................................................................................................................... 9
3.1 Product Summary..................................................................................................................... 9
3.1.1 General Information ...................................................................................................... 9
3.1.2 Software Information.................................................................................................... 9
3.1.3 Hardware Information .................................................................................................11
3.1.4 Mechanical Information .............................................................................................12
3.1.5 Quality/ Testing Information
...................................................................................12
3.1.6 Miscellaneous Information ........................................................................................13
3.2 Product Library.........................................................................................................................13
3.2.1 Target Device Mode Mapping ...................................................................................13
3.2.2 Defaults..............................................................................................................................13
3.2.3 Library Upgrade Support ............................................................................................13
3.2.4 Key Table .............................................................................................................................14
3.3 Operational Features......................................................................................................................15
3.4 Remote UEI Key and Pointing Device Data Packet......................................................................16
3.4.1 Definitions ............................................................................................................................20
3.4.2 Time Event / Data Packet Transmission Diagram............................................................23
Some notations used in the Time Event / Data Packet Diagram .....................................................27
Notation 27
Function Description ...........................................................................................................................27
Make ...........................................................................................................................................................................................................27
3.4.3 Device Number Setup..........................................................................................................28
3.4.4 RF Channel Change ............................................................................................................29
3.4.5 E2 Initialization....................................................................................................................31
3.4.6 Factory Test Mode(s)...........................................................................................................32
3.4.7 Key Test (Also used in Factory Test for Key): ..................................................................33
3.4.8 Low Battery Indicator.........................................................................................................38
4 RF Transmission General Specification .......................................................................................................................................39
4.1 Data Coding...................................................................................................................................40
5 Hardware Interface.........................................................................................................................................................................41
5.1 Transmitter Outline /Interface .......................................................................................................41
5.1 Product Performance Requirements ..............................................................................................43
5.1.1 RF CHANNEL and OPERATING BANDS......................................................................43
5.1.2 RF Channels and Frequencies............................................................................................43
5.1.3 RF Channel Operation Range ............................................................................................44
5.1.4 RF Modulation Scheme and Modulation Level ................................................................44
5.1.5 Maximum Bit Rate ..............................................................................................................44
5.1.6 RF Power Management.......................................................................................................44
• T2 = Frequency Stable Time. Typically, it should be T2 > 20ms ............................................44
5.1.7 Transmitter Data Input Level ............................................................................................44
The transmitter data input level should be fixed as the supply voltage drops when using battery.
It is required that the Input level will be Vp-p = 100mv (+/- 10%).................................................44