Configuration Overview - Texas Instruments CC2500 TK Manual

Component
C51
C81
C101
C121
C122
C123
C124
C131
C132
L121
L122
L131
R171
XTAL
Table 15: Bill Of Materials for the Application Circuit
Measurements have been performed with
multi-layer inductors from other manufacturers
(e.g. Würth) and the measurement results
were the same as when using the Murata part.
The Gerber files for the CC2500EM reference
design ([4]) are available from the TI website.
8

Configuration Overview

CC2500 can be configured to achieve optimum
performance for many different applications.
Configuration is done using the SPI interface.
The following key
programmed:

Power-down / power up mode

Crystal oscillator power-up / power-down

Receive / transmit mode

RF channel selection

Data rate

Modulation format

RX channel filter bandwidth

RF output power

Data buffering with separate 64-byte
receive and transmit FIFOs
Value
100 nF ±10%, 0402 X5R
27 pF ±5%, 0402 NP0
27 pF ±5%, 0402 NP0
100 pF ±5%, 0402 NP0
1.0 pF ±0.25 pF, 0402 NP0
1.8 pF ±0.25 pF, 0402 NP0
1.5 pF ±0.25 pF, 0402 NP0
100 pF ±5%, 0402 NP0
1.0 pF ±0.25 pF, 0402 NP0
1.2 nH ±0.3 nH, 0402 monolithic
1.2 nH ±0.3 nH, 0402 monolithic
1.2 nH ±0.3 nH, 0402 monolithic
56 kΩ ±1%, 0402
26.0 MHz surface mount crystal
parameters can be
SWRS040C
Manufacturer
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata GRM15 series
Murata LQG15HS series
Murata LQG15HS series
Murata LQG15HS series
Koa RK73 series
NDK, AT-41CD2
Figure 4: CC2500EM Reference Design ([4])

Packet radio hardware support

Forward Error Correction (FEC) with
interleaving

Data Whitening

Wake-On-Radio (WOR)
Details of each configuration register can be
found in Section 32, starting on page 57.
Figure 5 shows a simplified state diagram that
explains the main CC2500 states, together with
typical usage and current consumption. For
detailed information on controlling the CC2500
state machine, and a complete state diagram,
see Section 19, starting on page 39.
CC2500
Page 19 of 89