User's Manual

PCS3_HD_v01.000-03
Confidential / Preliminary
Page 3 of 101
2013-10-21
PCS3 Hardware Interface Description
Contents
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Contents
0 Document History ....................................................................................................... 8
1 Introduction .............................................................................................................. 10
1.1 Related Documents ......................................................................................... 10
1.2 Terms and Abbreviations ................................................................................. 10
1.3 Regulatory and Type Approval Information ..................................................... 13
1.3.1 Directives and Standards ................................................................... 13
1.3.2 SAR requirements specific to portable mobiles .................................. 15
1.3.3 SELV Requirements ........................................................................... 16
1.3.4 Safety Precautions ............................................................................. 16
2 Product Concept ....................................................................................................... 18
2.1 Key Features at a Glance ................................................................................ 18
2.2 PCS3 System Overview .................................................................................. 20
2.3 Circuit Concept ................................................................................................ 21
3 Application Interface ................................................................................................ 22
3.1 Operating Modes ............................................................................................. 23
3.2 Power Supply .................................................................................................. 24
3.2.1 Monitoring Power Supply by AT Command ........................................ 25
3.3 Power-Up / Power-Down Scenarios ................................................................ 26
3.3.1 Turn on PCS3 ..................................................................................... 26
3.3.2 Signal States after Startup .................................................................. 27
3.3.3 Turn off PCS3 Using AT Command .................................................... 28
3.3.4 Configuring the IGT Line for Use as ON/OFF Switch ......................... 29
3.3.5 Automatic Shutdown ........................................................................... 30
3.3.5.1 Thermal Shutdown .............................................................. 31
3.3.5.2 Undervoltage Shutdown ...................................................... 32
3.3.5.3 Overvoltage Shutdown ........................................................ 32
3.3.6 Automatic Reset ................................................................................. 32
3.3.7 Turn off PCS3 in Case of Emergency..………………………………....33
3.4 Power Saving .................................................................................................. 34
3.4.1 Power Saving while Attached to CDMA Networks .............................. 34
3.4.2 Timing of the CTS0 Signal, CDMA ..................................................... 34
3.4.3 Wake up from or Disabling Power Saving .......................................... 35
3.5 RTC Backup .................................................................................................... 36
3.6 USB Interface .................................................................................................. 37
3.6.1 Reducing Power Consumption ........................................................... 38
3.7 Serial Interface ASC0 ...................................................................................... 39
3.8 Analog Audio Interface .................................................................................... 41
3.8.1 Microphone Inputs and Supply ........................................................... 42
3.8.2 Loudspeaker Output ........................................................................... 45
3.9 Digital Audio Interface ..................................................................................... 46
3.9.1 Pulse Code Modulation Interface (PCM) ............................................ 46