BCM89071A1CUBXGT Datasheet, PDF (36/69 Pages) Cypress Semiconductor – Single-Chip Automotive Grade Bluetooth Transceiver and Baseband Processor

BCM89071 Data Sheet
Crystal Oscillator
c. Auto-detection of the frequency requires the crystal or external frequency reference to have less than ±50 ppm
of variation and also requires an external LPO frequency which has less than ±250 ppm of variation at the time
of detection.
d. AT-Cut crystal or TXCO recommended.
Crystal Oscillator
The BCM89071 can use an external crystal to provide a frequency reference. The recommended configuration
for the crystal oscillator, including all external components, is shown in Figure 6.
Figure 6: Recommended Oscillator Configuration
XIN
0 to 18 pF*
Crystal
Oscillator
XOUT
0 to 18 pF*
*Capacitor value range depends
on the manufacturer of the XTAL
as well as board layout.
Broadcom^®
April 16, 2015 • 89071-DS106-R
Baseband Transceiver and Baseband Processor
Page 35