Table of Contents
Advertisement
CC11x1-Q1
SWRS076B – 11-07-22-013 - APRIL 2009 – REVISED APRIL 2010
RF Receive Section Characteristics (continued)
V
= 1.8 V to 3.3 V, Forward error correction disabled, All voltages refer to GND (unless otherwise noted). Typical values at
DD
T
= 25°C, V
= 3 V. Receive parameters valid for CC1101 and CC1131 only.
A
DD
PARAMETER
38.4 kBaud / 2-FSK, 1% packet error rate, TX deviation
Receiver image
19 kHz, 100-kHz RX bandwidth, low-current mode
channel rejection,
(MDMCFG2.DEM_DCFILT_OFF = 1), Channel spacing
868 MHz/915 MHz
200 kHz, Desired channel 3 dB above sensitivity level,
Signal level at f
38.4 kBaud / 2-FSK, 1% packet error rate,
Receiver spurious
TX deviation 19 kHz, 100-kHz RX
emission
bandwidth, low-current mode
(MDMCFG2.DEM_DCFILT_OFF = 1)
2.6
Selectivity
Figure 2-1
to
Figure 2-3
Figure 2-1. Typical Selectivity at 1.2-kBaud Data Rate, 868.3 MHz, GFSK, 5.2-kHz Deviation,
IF Frequency 152.3 kHz, Digital Channel Filter Bandwidth 58 kHz
Figure 2-2. Typical Selectivity at 38.4-kBaud Data Rate, 868 MHz, GFSK, 20-kHz Deviation,
IF Frequency 152.3 kHz, Digital Channel Filter Bandwidth 100 kHz
10
Electrical Specifications
TEST CONDITIONS
– 608 kHz
Signal
show the typical selectivity performance (adjacent and alternate rejection).
50
40
30
20
10
0
-10
-20
-1.0 -0.9 -0.8 -0.7 -0.5 -0.4 -0.2 -0.1 0.1 0.2 0.4 0.6 0.7 0.8 0.9 1.0
50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-1.0
-0.8
-0.5
-0.4
-0.3
Submit Documentation Feedback
–40°C to 105°C
125°C
25 MHz to
–40°C to 105°C
1 GHz
> 1 GHz
–40°C to 105°C
Frequency offset [MHz]
-0.2
-0.1
0.0
0.1
0.2
0.4
Frequency offset [MHz]
Copyright © 2009–2010, Texas Instruments Incorporated
T
MIN
TYP
A
–60
–55
–57
–47
0.5
0.8
1.0
www.ti.com
MAX
UNIT
dB
dBm
Advertisement
Table of Contents
