CSR1001A04-IQQA-R Datasheet, PDF (15/45 Pages) –

Power Supplies and
Control
VDD_BAT
VDD_BAT_SMPS
SMPS_LX
VDD_CORE
VDD_PADS
VDD_REG_IN
VDD_XTAL
VSS
Unconnected
Terminals
N/C
Lead
3
1
56
7, 55
36
8
13
Exposed pad
Lead
2, 9, 11 and 12
Description
Battery input and regulator enable (active high).
Input to high-voltage switch-mode regulator.
High-voltage switch-mode regulator output.
Positive supply for digital domain.
Positive supply for all digital I/O ports PIO[31:0].
Positive supply for Bluetooth radio and digital linear regulator.
Leave unconnected.
Note:
Add connection to a 470nF decoupling capacitor to this pin,
see Section 7.
The decoupling capacitor is not fitted in normal operation.
Ground connections.
Description
Leave unconnected.
Production Information
© Cambridge Silicon Radio Limited 2011-2013
Page 14 of 44
CS-216358-DSP5
www.csr.com