Xbee/Xbee-Pro® Digimesh 2.4 Electrical Characteristics - Digi XBee User Manual

®
XBee/XBee-PRO DigiMesh 2.4 User Manual
XBee/XBee-PRO
The following table displays the electrical voltage parameters of the XBee/XBee-PRO
2.4 RF Module:
Symbols Parameter
V
Input low voltage
IL
V
Input high voltage
IH
V
Output low voltage
OL
V
Output high voltage
OH
II
Input leakage current
IN
Symbol Parameter
VREF-analog-to-digital
V
converter reference
REFH
range
VREF-reference supply
I
REF
current
V
Analog input voltage
INDC
1 Maximum electrical operating range, not valid conversion range
Symbol Parameter
Source impedance at
R
AS
2
input
V
Analog input voltage
AIN
Ideal resolution (1
RES
4
LSB)
Differential non-
DNL
5
linearity
INL
Integral non-linearity
E
Zero-scale error
ZS
F
Full-scale error
FS
E
Input leakage error
IL
E
Total unadjusted error
TU
1 All ACCURACY numbers are based on processor and system being in WAIT state (very little activity and no IO switching) and that adequate low-pass
filtering is present on analog input pins (filter with 0.01
may result in system or microcontroller noise causing accuracy errors which will vary based on board layout and the type and magnitude of the activity. 
Data transmission and reception during data conversion may cause some degradation of these specifications, depending on the number and timing
of packets. It is advisable to test the ADCs in your installation if best accuracy is required.
2 R is the real portion of the impedance of the network driving the analog input pin. Values greater than this amount may not fully charge the input
AS
circuitry of the ATD resulting in accuracy error.
3 Analog input must be between V
4 The resolution is the ideal step size or 1LSB = (V
© 2014 Digi International Inc.
®
DigiMesh 2.4 Electrical Characteristics
Condition
All digital inputs
All digital inputs
I = 2 mA, VCC >= 3.0 V
OL
I = 2 mA, VCC >= 3.0 V
OH
V = VCC or GND, all
IN
inputs, per pin
Condition
Enabled
Disabled or sleep mode
Condition
3
2.08V > V
DDAD
6
7
8
9

F to 0.1
and V for valid conversion. Values greater than V
REFL REFH
–V
REFH REFL
Min Typical
- -
0.8 *
-
VCC
- -
0.82*V
-
CC
- -
Min Typical
2.08 -
- 200
- < 0.01
V -
SSAD
-
0.3
Min Typical
- -
V
REFL
> 3.6V
2.031
- ±0.5
- ±0.5
- ±0.4
- ±0.4
- ±0.05
- ±1.1

F capacitor between analog input and V
REFH
)/1024
®
Max
0.2 *
VCC
-
0.18*VC
C
-
0.5
Max Units
V
V
DDAD
-

0.02

V +
SSAD
V
0.3
Max Units
10 k

V
V
REFH
3.516 mV
±1.0 LSB
±1.0 LSB
±1.0 LSB
±1.0 LSB
±5.0 LSB
±2.5 LSB
). Failure to observe these guidelines
REFL
will convert to $3FF.
DigiMesh
Units
V
V
V
V
A

A
A
15