Computime CTL3573A Users Manual
ZigBee-Ready RF Transceiver Module
(IEEE 802.15.4)
CTL3570/1/2/3
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.
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
Revision
Rev. Date
(DD-MM-YYYY)
1 18-09-2011
2
04-11-2011
First Release
Update Pin assignment
History
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
Table of Contents
1.
General Description...................................................................................................................................... 0
2. Applications .................................................................................................................................................. 0
3. Features ....................................................................................................................................................... 0
4. Absolute Maximum Ratings.......................................................................................................................... 1
5. Recommended Operating Conditions .......................................................................................................... 1
6. Electrical Specifications................................................................................................................................ 1
7. Typical application block .............................................................................................................................. 3
8. Pin Assignment............................................................................................................................................. 3
9. Pin Description ............................................................................................................................................. 4
10. Block Diagram......................................................................................................................................... 11
11. RF Frequency Detail............................................................................................................................... 13
12. PCB Layout Recommendations.............................................................................................................. 13
13. Mechanical Dimensions.......................................................................................................................... 14
14. Modules Differentia................................................................................................................................. 15
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
1. General Description
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.
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
4. Absolute Maximum Ratings
Parameter Test Conditions Min. Max. Unit
Regulator input voltage (VDD_PADS)
-0.3 +3.6 V
RF Input Power
(for max level for correct packet reception)
Voltage on any GPIO (PA[7:0], PB[7:0],
PC[7:0]), SWCLK, nRESET,
VREG_OUT
Voltage on any GPIO pin (PA4, PA5, PB5,
PB6, PB7, PC1), when used as an input to the
general purpose ADC with the low voltage
range selected
Voltage on OSCA, OSCB, NC
Storage temperature
RX signal into a lossless balun
5. Recommended Operating Conditions
Parameter Test Conditions Min. Typ. Max. Unit
Regulator input voltage (VDD_PADS)
Operating temperature range
2.7 3.6
0 +70
-0.3 VDD_PADS
-0.3 2.0 V
-0.3 VDD_PADSA
-40 +140 °C
+15 dBm
V
+0.3
V
+0.3
①
V
②
°C
6. Electrical Specifications
T=25℃, VCC = 3.0V, Fo =2450MHZ, if nothing else stated.
Parameter Condition / Note Min Typ. Max Unit
Operating frequency
Number of channels For IEEE 802.15.4 compliance 16
Channel spacing For IEEE 802.15.4 compliance 5 MHz
Input/output impedance 50 Ohm
Frequency stability +/-40 ppm
Transmit power Programmable from firmware -55 8 dBm
①
Regulator input voltage from 2.1 to 3.6V for module CTL3570 and CTL3572.
②
Operationg temperature range from -40 to 85°C for module CTL3570 and CTL3572.
Programmable in 5MHz steps, 5 MHz
steps for IEEE 802.15.4 compliance
2.4 2.5 GHz
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
Parameter Condition / Note Min Typ. Max Unit
Sensitivity
Adjacent channel rejection +/-5 MHz
Adjacent channel rejection +/-10 MHz
Co-channel rejection -6
Supply voltage 2.7 3.6 ③ V
Current consumption,
RX mode
Current consumption,
TX mode
Deep sleep current
Flash Memory 192⑤ KB
MCU clock frequency 24 MHz
PER = 1% PER, 20byte packet
defined by IEEE 802.15.4 Boost
mode
IEEE 802.15.4 compliance at -82
dBm
IEEE 802.15.4 compliance at -82
dBm
Max RX sensitivity (normal mode) 28 mA
Max RX sensitivity (boost mode) 30 mA
-98 dBm
35/35 dB
40/40 dB
42 mA
5.0④ μA
dB
③
Supply voltage from 2.1 to 3.6V for module CTL3570 and CTL3572.
④
Deep sleep current less than 8 uA for module CTL3571 and CTL3573.
⑤
Only CTL3571 and CTL3573 have 8Mb off chip flash memory on the RF module.
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
ZigBee- Ready RF Transceiver Module CTL3570/1/2/3
7. Typical application block
HOST
MCU
VDD_PADS=2.7- 3.6V
Debug and
programming
interface
8. Pin Assignment
NREST
PTI_EN
PTI-DATA
SIF_CLK
SIF-MISO
SIF-MOSI
NSIF_LOAD
SDBG
24MHz
CTL357x
RF Module
8Mb flash
Figure 1: Example of application circuit
LINK_ACTIVITY
Figure 2: CTL357x pin assignment
Copyright © 2011 Computime Limited. All rights reserved. Rev. 3
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