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CC2530ZDK Datasheet, PDF (8/34 Pages) Texas Instruments – A True System-on-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications
CC2530F32, CC2530F64
CC2530F128, CC2530F256
SWRS081B – APRIL 2009 – REVISED FEBRUARY 2011
www.ti.com
32-MHz CRYSTAL OSCILLATOR
Measured on Texas Instruments CC2530 EM reference design with TA = 25°C and VDD = 3 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Crystal frequency
32
MHz
Crystal frequency accuracy
requirement (1)
–40
40 ppm
ESR
Equivalent series resistance
6
60 Ω
C0
Crystal shunt capacitance
CL
Crystal load capacitance
Start-up time
1
10
0.3
7 pF
16 pF
ms
The crystal oscillator must be in power down for a
guard time before it is used again. This
Power-down guard time
requirement is valid for all modes of operation. The
3
ms
need for power-down guard time can vary with
crystal type and load.
(1) Including aging and temperature dependency, as specified by [1]
32.768-kHz CRYSTAL OSCILLATOR
Measured on Texas Instruments CC2530 EM reference design with TA = 25°C and VDD = 3 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Crystal frequency
32.768
kHz
Crystal frequency accuracy
requirement (1)
–40
40 ppm
ESR
Equivalent series resistance
40 130 kΩ
C0
Crystal shunt capacitance
CL
Crystal load capacitance
Start-up time
0.9
2 pF
12
16 pF
0.4
s
(1) Including aging and temperature dependency, as specified by [1]
32-kHz RC OSCILLATOR
Measured on Texas Instruments CC2530 EM reference design with TA = 25°C and VDD = 3 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Calibrated frequency(1)
32.753
kHz
Frequency accuracy after calibration
Temperature coefficient(2)
Supply-voltage coefficient(3)
Calibration time(4)
±0.2%
0.4
3
2
%/°C
%/V
ms
(1) The calibrated 32-kHz RC oscillator frequency is the 32-MHz XTAL frequency divided by 977.
(2) Frequency drift when temperature changes after calibration
(3) Frequency drift when supply voltage changes after calibration
(4) When the 32-kHz RC oscillator is enabled, it is calibrated when a switch from the 16-MHz RC oscillator to the 32-MHz crystal oscillator
is performed while SLEEPCMD.OSC32K_CALDIS is 0.
8
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