ZAXM-201-1-ES CEL, ZAXM-201-1-ES Datasheet - Page 7

• Manufacturer Part Number: ZAXM-201-1-ES
• Description: Zigbee / 802.15.4 Modules & Development Tools Apex Zigbee 100mW Engineer Sample
• Manufacturer: CEL

Specifications of ZAXM-201-1-ES

• Wireless Frequency: 2.4 GHz to 2.5 GHz
• Interface Type: SPI, I2C, UART
• Security: 128 bit AES
• For Use With/related Products: XAP2b
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

POWER AMPLIFIER REGULATOR CONTROL LINE
The APEX modules include a separate 1.8V regulator for a power amplifier bias that enables consistent module output per-
formance over the wide 2.1 – 3.6 V voltage range. To prevent excessive sleep currents, this regulator should be disabled
when the module is in sleep mode. An external pull up resistor option is provided on each module (R6) that allows the
regulator to be constantly enabled. This option increases the sleep current of the module to a point well above the speci-
fied values.
On the APEX module, the regulator control line is connected to the module via the GPIO7 port. The host can drive this port
as it does on the APEX LT module, but it can also use the default serial digital function of this port as an external voltage
regulator enable. Please consult the EM250 datasheet for details on the operation of this function. Note that both these
approaches preclude the use of the GPIO7 port for any other functions, including use as the ADC3 input.
If the application does not put the module to sleep or if sleep current is not an issue, the power amplifier regulator may
be permanently enabled by tying the control line high. In this setup, the sleep current will increase by 80 µA over the 5µA
Standby Current figure provided in Electrical Specifications.
SIF INTERFACE
The APEX module provide access to the SIF module programming and debug interface.
Consult the EM250 datasheet for further details on the following SIF features:
HOST PROTOCOL INTERFACE COMMANDS
For information on Host Protocol Interface Commands and for other software-related documents refer to Ember’s website:
http://www.ember.com/products_documentation.html
• Production Testing
• Firmware Download
• Product Control and Characterization
• XAP2b Code Development (APEX only)
Parameter
Regulator enable voltage
Regulator disable voltage
Enable line current (VEN = 0)
Enable line current (VEN = V
Turn on Time
SPECIFICATIONS — GPIO7 (APEX)
DD
)
0.95
Min
Typ
Max
250
0.4
0.1
10
µsec
Unit
μA
µA
V
V
ZAXM-200 Series