BCM4390DKWBGT Datasheet, PDF (21/78 Pages) Cypress Semiconductor – WICED™ Wi-Fi IEEE 802.11 b/g/n SoC with Embedded Application Processor

BCM4390 Advance Data Sheet
External 32.768 KHz Low-Power Oscillator
Table 3: External 32.768 kHz Sleep Clock Specifications
Parameter
Nominal input frequency
Frequency accuracy
Duty cycle
Input signal amplitude
Signal type
Input impedance^a
Clock jitter (during initial start-up)
a. When power is applied or switched off.
LPO Clock
32.768
±100
30–70
200–1800
Square-wave or sine-wave
>100K
<5
<10,000
Units
kHz
ppm
%
mV, p-p
–
Ω
pF
ppm
BROADCOM ®
February 5, 2014 • 4390-DS103-R
WICED Wi-Fi IEEE 802.11 SoC w/Embedded App Processor
Page 20
BROADCOM CONFIDENTIAL