The reproduction of this datasheet is NOT allowed without approval of Computime Limited. All information and data
contained in this datasheet are subject to change without notice. This publication supersedes and replaces all information
previously supplied. Computime has no responsibility to the consequence of using the information described in this
document.
General Description...................................................................................................................................... 0
3. Features ....................................................................................................................................................... 0
4. Absolute Maximum Ratings.......................................................................................................................... 1
11. RF Frequency Detail............................................................................................................................... 13
The CTL357x RF Transceiver Module is compact surface mounted Module specially designed for
Ember ZigBee™ protocol stack for wireless networks, EmberZNet, based on IEEE 802.15.4
standard in the 2.4GHz world-wide ISM band. The complete module is only 32.4 x 25.4 x 4.1 mm. It
integrated a 2.4GHz, IEEE 802.15.4-2003 compliant transceiver with a 32-bit network processor
(ARM Cortex-M3 Processor). It contains embedded Flash and integrated RAM for program and data
storage. It utilizes the non-intrusive SIF module for powerful software debugging and programming
of the network processor.
2. Applications
Home
automation &
building control
Home
appliances &
alarms
Monitoring of
remote
systems
Security
systems &
lighting
controls
Sensor data
capture in
embedded
networks
3. Features
Complete ZigBee-ready module with integrated PCB antenna
Integrated IEEE 802.15.4 PHY and MAC layer
Non-intrusive debug interface (SIF)
SPI interface for communication and controlled by the Host using the EmberZNet Serial Protocol
(EZSP)
Internal RC oscillator for timer
High performance direct sequence spread spectrum (DSSS) RF transceiver
16 channels in the 2.4 GHz ISM band
On-chip regulator for 2.1-3.6V operation , three sleep low power modes
32-bit ARM® Cortex™-M3 processor
192KB FLASH ROM and 12KB RAM (EM357 internal) ,8Mb off chip Flash memory
(CTL3571&CTL3573)
+5dBm transmission power (Boost mode up to +8dBm)
-98dBm excellent reception sensitivity. (Boost mode -101dBm)
Small footprint: 32.4 x 25.4 x 4.1 mm
Extremely low Deep Sleep Current.
TIM2C1 TIM2C1 TIM2C1 TIM2C1 O Timer 2 channel 1 output
TIM2C1 TIM2C1 TIM2C1 TIM2C1 I Timer 2 channel 1 input
SC2MOSI SC2MOSI SC2MOSISC2MOSIO
SC2MOSI SC2MOSI SC2MOSISC2MOSII SPI slave data in of serial controller 2
SI SI I Serial data in for 8Mb flash⑥
PA1 PA1 PA1 PA1 I/O
TIM2C3 TIM2C3 TIM2C3 TIM2C3 O Timer 2 channel 3 output
TIM2C3 TIM2C3 TIM2C3 TIM2C3 I Timer 2 channel 3 input
19
SC2SDA SC2SDA SC2SDA SC2SDA I/O TWI data of serial controller 2
SC2MISO SC2MISO SC2MISOSC2MISOO SPI slave data out of serial controller 2
SC2MISO SC2MISO SC2MISOSC2MISOI SPI master data in of serial controller 2
SPI master data out of serial controller
2
Digital I/O
SOSOOSerial data out of 8Mb flash
20
PA2 PA2 PA2 PA2 I/O
TIM2C4 TIM2C4 TIM2C4 TIM2C4 O Timer 2 channel 4 output
TIM2C4 TIM2C4 TIM2C4 TIM2C4 I Timer 2 channel 4 input
SC2SCL SC2SCL SC2SCL SC2SCL I/O TWI clock of serial controller 2
SC2SCLK SC2SCLK SC2SCLKSC2SCLKO SPI master clock of serial controller 2
Digital I/O
⑥
The SI,SO,SCK and CE# on the module pin18,19,20 and 23 are connected to the off chip 8Mbit SPI Serial
Flash(SST25VF080B).Details information about the flash memory ,refers to its datasheet. It applys to the module
CTL3571 and CTL3573.
The following table shows the RF channels as defined by the IEEE 802.15.4 standard.
RF channel Frequency
11 2405MHz
12 2410MHz
13 2415MHz
14 2420MHz
15 2425MHz
16 2430MHz
17 2435MHz
18 2440MHz
19 2445MHz
20 2450MHz
21 2455MHz
22 2460MHz
23 2465MHz
24 2470MHz
25 2475MHz
26 2480MHz
12. PCB Layo ut Recommendations
Please reference Mechanical Dimensions shown in next section for PCB layout.
The area underneath the module should be covered with solder mask in order to prevent short
circuit on the test pads on the back side of the module. A solid ground plane under the module is
preferred.
As the module integrated with onboard PCB trace antenna, the mounting position of the module will
have great impact on the RF performance. There should not be any trace, ground plane or metal
part underneath or nearby the area of the onboard PCB trace antenna. The figure below shows an
example how the module positioned on the mother PCB.
Figure 4: A recommended placement of the module on a main PCB
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired
operation.
Part 15.21
2. Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Part 15.105
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.
Part 2.1091
For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other
than fixed locations and to generally be used in such a way that a separation distance of at least 20
centimeters is normally maintained between the transmitter's radiating structure(s) and the body of the user or
nearby persons. In this context, the term “fixed location” means that the device is physically secured at one
location and is not able to be easily moved to another location. Transmitting devices designed to be used by
consumers or workers that can be easily re-located, such as wireless devices associated with a personal
computer, are considered to be mobile devices if they meet the 20 centimeter separation requirement.
ATEMENT
If the FCC identification number is not visible when the module is installed inside another
device, then the outside of the device into which the module is installed must also display a
label referring to the enclosed module. This exterior label can use wording such as the
following: “Contains Transmitter Module FCC ID: DI2-CTL3573A
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the
following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
Ready RF Transceiver Module CTL3570/1/2/3
mation:
If the IC identification number is not visible when the module is installed inside another
device, then the outside of the device into which the module is installed must also display a
label referring to the enclosed module. This exterior label can use wording such as the
following: “Contains Transmitter Module IC: 1700D-CTL3573A
IC RF warni
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type
and maximum (or lesser) gain approved for the transmitter by Industry Canada.
To reduce potential radio interference to other users, the antenna type and its gain should be so chosen
that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful
communication.
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