450-0053 Datasheet, PDF (23/42 Pages) List of Unclassifed Manufacturers – Integrated Transceiver Modules for WLAN 802.11 a/b/g/n, Bluetooth, Bluetooth Low Energy (BLE), and ANT

TiWi5 TRANSCEIVER MODULE
DATASHEET
SLOW (32 KHZ) CLOCK SOURCE REQUIREMENTS
The slow clock is always supplied from an external source. It is input on the SLOW_CLK pin, and can be a digital
signal in the range of VIO only. For slow clock frequency and accuracy refer to Table 19. The external slow clock
must be stable before the system exits from shut down mode.
Parameter [1]
Input slow clock frequency
Input slow clock accuracy
Input transition time T_r/T_f – 10% to 90%
Frequency input duty cycle
Input voltage limits
VIL
Input impedance
Input capacitance
Rise and fall time
Phase noise
Condition Symbol
WLAN, BT
T_r/T_f
Square wave, VIH
DC coupled
0
1 kHz
Min
30
0.65 x VDDS
0.35 x VDDS
1
Typ
32768
50
-125
Max
+/-250
100
70
VDDS
5
100
Unit
Hz
ppm
ns
%
V_peak
MW
pF
ns
dBc/Hz
[1] Slow clock is a fail safe input
Table 19 Slow Clock Source Requirements
The information in this document is subject to change without notice.
330-0042-R2.0
Copyright © 2011-2012 LS Research, LLC
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