CC2480_11 Datasheet, PDF (12/48 Pages) Texas Instruments – Z-Accel 2.4 GHz ZigBee Processor

CC2480
5.8 Frequency Synthesizer Characteristics
Measured on Texas Instruments CC2480 EM reference design with T_A=25°C and VDD=3.0V
unless stated otherwise.
Table 11: Frequency Synthesizer Parameters
Parameter
Min
Typ
Max Unit
Condition/Note
Phase noise
−116
−117
−118
dBc/Hz
dBc/Hz
dBc/Hz
Unmodulated carrier
At ±1.5 MHz offset from carrier
At ±3 MHz offset from carrier
At ±5 MHz offset from carrier
PLL lock time
192 µs
The startup time until RX/TX turnaround. The crystal
oscillator is running.
5.9 Analog Temperature Sensor
Measured on Texas Instruments CC2480 EM reference design with T_A=25°C and VDD=3.0V
unless stated otherwise.
Table 12: Analog Temperature Sensor Parameters
Parameter
Min Typ Max Unit Condition/Note
Output voltage at –40°C
Output voltage at 0°C
Output voltage at +40°C
Output voltage at +80°C
Temperature coefficient
Absolute error in calculated
temperature
Error in calculated
temperature, calibrated
Current consumption
increase when enabled
0.648
V
Value is estimated
0.743
V
Value is estimated
0.840
V
Value is estimated
0.939
V
Value is estimated
2.45
mV/°C Fitted from –20°C to +80°C on estimated values.
–8
°C
From –20°C to +80°C when assuming best fit for
absolute accuracy on estimated values: 0.743V at
0°C and 2.45mV / °C.
-2
0
2 °C
From –20°C to +80°C when using 2.45mV / °C,
after 1-point calibration at room temperature.
Values are estimated. Indicated min/max with 1-
point calibration is based on simulated values for
typical process parameters
280
µA
5.10 ADC
Measured with T_A=25°C and VDD=3.0V. Note that other data may result when using Texas
Instruments’ CC2480 EM reference design.
Table 13: ADC Characteristics
Parameter
Min Typ Max Unit Condition/Note
Input voltage
Input resistance, signal
Full-Scale Signal³
0
VDD V
VDD is voltage on AVDD_SOC pin
197
kΩ Simulated using 4 MHz clock speed.
2.97
V
Peak-to-peak, defines 0dBFS
3 _{Measured with 300 Hz Sine input and VDD as reference.}
CC2480 Data Sheet SWRS074A
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