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CC1000-RTB1

Part # CC1000-RTB1
Description RF Transceiver FSK 3V 28-PinTSSOP Tube - Rail/Tube
Category IC
Availability In Stock
Qty 143
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Manufacturer Available Qty
Texas Instruments
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

CC1000
SWRS048A Page 10 of 55
6. Application Circuit
Very few external components are
required for the operation of
CC1000
. A
typical application circuit is shown in
Figure 2. Component values are shown in
Table 1.
6.1 Input / output matching
C31/L32 is the input match for the
receiver. L32 is also a DC choke for
biasing. C41, L41 and C42 are used to
match the transmitter to 50 . An internal
T/R switch circuit makes it possible to
connect the input and output together and
match the
CC1000
to 50 in both RX and
TX mode. See “Input/output matching”
p.31 for details.
6.2 VCO inductor
The VCO is completely integrated except
for the inductor L101.
Component values for the matching
network and VCO inductor are easily
calculated using the SmartRF® Studio
software.
6.3 Additional filtering
Additional external components (e.g. RF
LC or SAW-filter) may be used in order to
improve the performance in specific
applications. See also “Optional LC filter”
p.36 for further information.
6.4 Power supply decoupling
Power supply decoupling and filtering
must be used (not shown in the
application circuit). The placement and
size of the decoupling capacitors and the
power supply filtering are very important to
achieve the optimum performance.
Chipcon provides reference designs
(CC1000PP and CC1000uCSP_EM) that
should be followed very closely.
Figure 2. Typical
CC1000
application circuit (power supply decoupling not shown)
CC1000
SWRS048A Page 11 of 55
CC1000 TSSOP package
Item 315 MHz 433 MHz 868 MHz 915 MHz
C31 8.2 pF, 5%, C0G, 0603 15 pF, 5%, C0G, 0603 10 pF, 5%, C0G, 0603 10 pF, 5%, C0G, 0603
C41 2.2 pF, 5%, C0G, 0603 8.2 pF, 5%, C0G, 0603 Not used Not used
C42 5.6 pF, 5%, C0G, 0603 5.6 pF, 5%, C0G, 0603 4.7 pF, 5%, C0G, 0603 4.7 pF, 5%, C0G, 0603
C171 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603
C181 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603 18 pF, 5%, C0G, 0603
L32 39 nH, 10%, 0805
(Coilcraft 0805CS-390XKBC)
68 nH, 10%, 0805
(Coilcraft 0805CS-680XKBC)
120 nH, 10%, 0805
(Coilcraft 0805CS-121XKBC)
120 nH, 10%, 0805
(Coilcraft 0805CS-121XKBC)
L41 20 nH, 10%, 0805
(Coilcraft 0805HQ-
20NXKBC)
6.2 nH, 10%, 0805
(Coilcraft 0805HQ-
6N2XKBC)
2.5 nH, 10%, 0805
(Coilcraft 0805HQ-
2N5XKBC)
2.5 nH, 10%, 0805
(Coilcraft 0805HQ-
2N5XKBC)
L101 56 nH, 5%, 0805
(Koa KL732ATE56NJ)
33 nH, 5%, 0805
(Koa KL732ATE33NJ)
4.7 nH, 5%, 0805
(Koa KL732ATE4N7C)
4.7 nH, 5%, 0805
(Koa KL732ATE4N7C)
R131
82 k, 1%, 0603 82 k, 1%, 0603 82 k, 1%, 0603 82 k, 1%, 0603
XTAL 14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
CC1000 UltraCSP™ package
Item 315 MHz 433 MHz 868 MHz 915 MHz
C31 8.2 pF, 5%, C0G, 0402 15 pF, 5%, C0G, 0402 10 pF, 5%, C0G, 0402 10 pF, 5%, C0G, 0402
C41 Not used Not used Not used Not used
C42 4.7 pF, 5%, C0G, 0402 4.7 pF, 5%, C0G, 0402 6.8 pF, 5%, C0G, 0402 6.8 pF, 5%, C0G, 0402
C171 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402
C181 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402 18 pF, 5%, C0G, 0402
L32 39 nH, 5%, 0402
(Ceramic multilayer)
68 nH, 5%, 0402
(Ceramic multilayer)
120 nH, 5%, 0402
(Ceramic multilayer)
120 nH, 5%, 0402
(Ceramic multilayer)
L41 22 nH, 5%, 0402
(Ceramic multilayer)
15 nH, 5%, 0402
(Ceramic multilayer)
2.7 nH, 5%, 0402
(Ceramic multilayer)
2.7 nH, 5%, 0402
(Ceramic multilayer)
L101 56 nH, 5%, 0402
(Thin film inductor)
33 nH, 5%, 0402
(Thin film inductor)
7.5 nH, 5%, 0402
(Thin film inductor)
7.5 nH, 5%, 0402
(Thin film inductor)
R131
82 k, 1%, 0402 82 k, 1%, 0402 82 k, 1%, 0402 82 k, 1%, 0402
XTAL 14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
14.7456 MHz crystal,
16 pF load
Note: Items shaded are different for different frequencies
Table 1. Bill of materials for the application circuit
Note that the component values for
868/915 MHz can be the same. However,
it is important the layout is optimised for
the selected VCO inductor in order to
centre the tuning range around the
operating frequency to account for
inductor tolerance. The VCO inductor
must be placed very close and
symmetrical with respect to the pins (L1
and L2).
Chipcon provide reference layouts that
should be followed very closely in order to
achieve the best performance. The
reference design can be downloaded from
the Chipcon website.
CC1000
SWRS048A Page 12 of 55
7. Configuration Overview
CC1000
can be configured to achieve the
best performance for different
applications. Through the programmable
configuration registers the following key
parameters can be programmed:
Receive / transmit mode
RF output power
Frequency synthesiser key
parameters: RF output frequency, FSK
frequency separation (deviation),
crystal oscillator reference frequency
Power-down / power-up mode
Crystal oscillator power-up / power
down
Data rate and data format (NRZ,
Manchester coded or UART interface)
Synthesiser lock indicator mode
Optional RSSI or external IF
8. Configuration Software
Chipcon provides users of
CC1000
with a
software program, SmartRF® Studio
(Windows interface) that generates all
necessary
CC1000
configuration data
based on the user’s selections of various
parameters. These hexadecimal numbers
will then be the necessary input to the
microcontroller for the configuration of
CC1000
. In addition the program will
provide the user with the component
values needed for the input/output
matching circuit and the VCO inductor.
Figure 3 shows the user interface of the
CC1000
configuration software.
Figure 3. SmartRF® Studio user interface
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