5.4.2 Multi-slave Operation ............................................................................................................. 25
6 Power Control and Regulation ...................................................................................................................... 26
6.1 Switch-mode Regulator ....................................................................................................................... 26
6.2 Low-voltage VDD_DIG Linear Regulator ............................................................................................. 26
6.3 Reset ................................................................................................................................................... 26
6.3.1 Digital Pin States on Reset .................................................................................................... 27
6.3.2 Power-on Reset ..................................................................................................................... 27
7 Example Application Schematic ................................................................................................................... 28
8 Electrical Characteristics .............................................................................................................................. 29
8.1 Absolute Maximum Ratings ................................................................................................................. 29
8.2 Recommended Operating Conditions .................................................................................................. 29
8.3 Input/Output Terminal Characteristics ................................................................................................. 30
8.3.1 Switch-mode Regulator .......................................................................................................... 30
8.3.2 Low-voltage Linear Regulator ................................................................................................ 30
8.3.3 Digital Terminals .................................................................................................................... 30
8.3.4 AIO ......................................................................................................................................... 31
8.4 ESD Protection .................................................................................................................................... 33
9 Current Consumption .................................................................................................................................... 34
10 CSR Green Semiconductor Products and RoHS Compliance ..................................................................... 35
11 CSR1000 QFN Software Stack .................................................................................................................... 36
12 Tape and Reel Information ........................................................................................................................... 37
12.1 Tape Orientation .................................................................................................................................. 37
12.2 Tape Dimensions ................................................................................................................................. 38
12.3 Reel Information .................................................................................................................................. 39
12.4 Moisture Sensitivity Level .................................................................................................................... 39
13 Document References .................................................................................................................................. 40
Terms and Definitions ............................................................................................................................................ 41
List of Figures
Figure 1.1 Pinout Diagram ............................................................................................................................... 10
Figure 3.1 Clock Architecture ........................................................................................................................... 17
Figure 3.2 Crystal Driver Circuit ....................................................................................................................... 17
Figure 3.3 Sleep Clock Crystal Driver Circuit ................................................................................................... 19
Figure 4.1 Baseband Digits Block Diagram ...................................................................................................... 20
Figure 5.1 Example of an I²C Interface EEPROM Connection ......................................................................... 23
Figure 5.2 SPI Timing Diagram ........................................................................................................................ 24
Figure 5.3 Memory Boot-up Sequence ............................................................................................................ 24
Figure 6.1 Voltage Regulator Configuration ..................................................................................................... 26
Figure 11.1 Software Architecture ...................................................................................................................... 36
Figure 12.1 Tape Orientation ............................................................................................................................. 37
Figure 12.2 Tape Dimensions ............................................................................................................................ 38
Figure 12.3 Reel Dimensions ............................................................................................................................. 39
Production Information
© Cambridge Silicon Radio Limited 2011-2013
Page 8 of 43
CS-216340-DSP4
www.csr.com
CSR1000 QFN Data Sheet
Prepared for Jonathan Campbell - mophie.com - Wednesday, August 21, 2013