CC2640R2F Datasheet, PDF (23/64 Pages) Texas Instruments – SimpleLink Bluetooth low energy Wireless MCU

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CC2640R2F
SWRS204 – DECEMBER 2016
5.16 48-MHz RC Oscillator (RCOSC_HF)
Measured on the TI CC2650EM-5XD reference design with T_c = 25°C, V_DDS = 3.0 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
Frequency
48
Uncalibrated frequency accuracy
Calibrated frequency accuracy⁽¹⁾
±1%
±0.25%
Start-up time
5
(1) Accuracy relative to the calibration source (XOSC_HF).
UNIT
MHz
µs
5.17 32-kHz RC Oscillator (RCOSC_LF)
Measured on the TI CC2650EM-5XD reference design with T_c = 25°C, V_DDS = 3.0 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
Calibrated frequency⁽¹⁾
32.8
UNIT
kHz
Temperature coefficient
50
ppm/°C
(1) The frequency accuracy of the Real Time Clock (RTC) is not directly dependent on the frequency accuracy of the 32-kHz RC Oscillator.
The RTC can be calibrated to an accuracy within ±500 ppm of 32.768 kHz by measuring the frequency error of RCOSC_LF relative to
XOSC_HF and compensating the RTC tick speed. The procedure is explained in Running Bluetooth® Low Energy on CC2640 Without
32 kHz Crystal.
5.18 ADC Characteristics
T_c = 25°C, V_DDS = 3.0 V and voltage scaling enabled, unless otherwise noted.⁽¹⁾
PARAMETER
TEST CONDITIONS
Input voltage range
Resolution
DNL ⁽³⁾
INL ⁽⁴⁾
Sample rate
Offset
Gain error
Differential nonlinearity
Integral nonlinearity
Internal 4.3-V equivalent reference⁽²⁾
Internal 4.3-V equivalent reference⁽²⁾
Internal 4.3-V equivalent reference⁽²⁾, 200 ksps,
9.6-kHz input tone
ENOB Effective number of bits VDDS as reference, 200 ksps, 9.6-kHz input tone
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
Internal 4.3-V equivalent reference⁽²⁾, 200 ksps,
9.6-kHz input tone
THD Total harmonic distortion VDDS as reference, 200 ksps, 9.6-kHz input tone
SINAD,
SNDR
Signal-to-noise
and
Distortion ratio
SFDR
Spurious-free dynamic
range
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
Internal 4.3-V equivalent reference⁽²⁾, 200 ksps,
9.6-kHz input tone
VDDS as reference, 200 ksps, 9.6-kHz input tone
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
Internal 4.3-V equivalent reference⁽²⁾, 200 ksps,
9.6-kHz input tone
VDDS as reference, 200 ksps, 9.6-kHz input tone
Internal 1.44-V reference, voltage scaling disabled,
32 samples average, 200 ksps, 300-Hz input tone
MIN
TYP
MAX UNIT
0
VDDS V
12
Bits
200 ksps
2
LSB
2.4
LSB
>–1
LSB
±3
LSB
9.8
10
Bits
11.1
–65
–69
dB
–71
60
63
dB
69
67
72
dB
73
(1) Using IEEE Std 1241™-2010 for terminology and test methods.
(2) Input signal scaled down internally before conversion, as if voltage range was 0 to 4.3 V.
(3) No missing codes. Positive DNL typically varies from +0.3 to +3.5, depending on device (see Figure 5-21).
(4) For a typical example, see Figure 5-22.
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Specifications
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