BCM20707 Datasheet, PDF (23/65 Pages) Cypress Semiconductor – Complies with Bluetooth Core Specification version 4.2 including BR/EDR/BLE

BCM20707 Preliminary Data Sheet
Clock Frequencies
Table 5 shows the recommended crystal specifications.
Table 5: Reference Crystal Electrical Specifications
Parameter
Nominal frequency
Oscillation mode
Frequency tolerance
Tolerance stability over temp
Equivalent series resistance
Load capacitance
Operating temperature range
Storage temperature range
Drive level
Aging
Shunt capacitance
Conditions
–
–
@25°C
@0°C to +70°C
–
–
–
–
–
–
–
Minimum Typical
20
24
Fundamental
–
±10
–
±10
–
–
–
12
0
–
–40
–
–
–
–
–
–
–
Maximum Unit
40
–
–
60
–
+70
+125
200
±10
2
MHz
–
ppm
ppm
W
pF
°C
°C
μW
ppm/year
pF
HID Peripheral Block
The peripheral blocks of the BCM20707 all run from a single 128 kHz low-power RC oscillator. The oscillator can
be turned on at the request of any of the peripherals. If the peripheral is not enabled, it shall not assert its clock
request line.
The keyboard scanner is a special case, in that it may drop its clock request line even when enabled, and then
reassert the clock request line if a keypress is detected.
Broadcom^®
May 27, 2016 • 20707-DS206-R
BROADCOM CONFIDENTIAL
Bluetooth SoC
Page 22