CC2531 Datasheet, PDF (9/32 Pages) Texas Instruments – A USB Enabled System-On-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee Applications

CC2531
www.ti.com ........................................................................................................................................................................................ SWRS086 – SEPTEMBER 2009
ADC CHARACTERISTICS
T_A = 25°C and V_DD = 3 V, unless otherwise noted.
PARAMETER
Input voltage
External reference voltage
External reference voltage differential
Input resistance, signal
Full-scale signal⁽¹⁾
ENOB⁽¹⁾ Effective number of bits
Useful power bandwidth
THD ⁽¹⁾
Total harmonic distortion
TEST CONDITIONS
V_DD is voltage on AVDD5 pin
V_DD is voltage on AVDD5 pin
V_DD is voltage on AVDD5 pin
Using 4-MHz clock speed
Peak-to-peak, defines 0 dBFS
Single-ended input, 7-bit setting
Single-ended input, 9-bit setting
Single-ended input, 10-bit setting
Single-ended input, 12-bit setting
Differential input, 7-bit setting
Differential input, 9-bit setting
Differential input, 10-bit setting
Differential input, 12-bit setting
7-bit setting, both single and differential
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
Signal to nonharmonic ratio⁽¹⁾
CMRR
DNL ⁽¹⁾
INL ⁽¹⁾
Common-mode rejection ratio
Crosstalk
Offset
Gain error
Differential nonlinearity
Integral nonlinearity
SINAD ⁽¹⁾
(–THD+N)
Signal-to-noise-and-distortion
Conversion time
Power consumption
Internal reference voltage
Single-ended input, 12-bit setting
Differential input, 12-bit setting
Single-ended input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, –6 dBFS
Differential input, 12-bit setting, 1-kHz sine (0
dBFS), limited by ADC resolution
Single-ended input, 12-bit setting, 1-kHz sine (0
dBFS), limited by ADC resolution
Midscale
12-bit setting, mean
12-bit setting, maximum
12-bit setting, mean
12-bit setting, maximum
Single-ended input, 7-bit setting
Single-ended input, 9-bit setting
Single-ended input, 10-bit setting
Single-ended input, 12-bit setting
Differential input, 7-bit setting
Differential input, 9-bit setting
Differential input, 10-bit setting
Differential input, 12-bit setting
7-bit setting
9-bit setting
10-bit setting
12-bit setting
MIN TYP MAX
0
V_DD
0
V_DD
0
V_DD
197
2.97
5.7
7.5
9.3
10.8
6.5
8.3
10.0
11.5
0–20
–75.
2
–86.
6
70.2
79.3
78.8
88.9
>84
UNIT
V
V
V
kΩ
V
bits
kHz
dB
dB
dB
>84
dB
–3
mV
0.68
%
0.05
LSB
0.9
4.6
LSB
13.3
35.4
46.8
57.5
66.6
dB
40.7
51.6
61.8
70.8
20
36
µs
68
132
1.2
mA
1.15
V
(1) Measured with 300-Hz sine-wave input and VDD as reference.
Copyright © 2009, Texas Instruments Incorporated
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