User's Manual

New Product Requirement
Asiatelco Technologies Co. Proprietary/Confidential
Watchdog
CBP8.2 chipset provide internal software Watchdog, and a physically dedicate Watchdog
circuit requirement is optional.
Motion Detect (Option)
A factory populates option for motion detector is provided. If populated at the time the
MC891G is manufactured, this option will work with firmware power down options to keep
the MC891G in a very low power down state until motion is detected. Upon wakening, a
report can then be generated.
3.2 Basic RF Performance Requirements
Items Requirements
Remark
TRP free space >= 20 dBm TRP free space
TIS free space <= -104dBm
TIS free space
Antenna loss <= -3 dB
TRP-TX Power Conducted
Antenna Loss <= -3 dB
RX receive sensitivity conducted –
TIS
Board RF Specification
Cellular Band RX
Frequency range
869MHz～894MHz
Sensitivity -108dBm (FER≤0.5%)
Dynamic range
-25～-108dBm (FER≤0.5%)
Single tone Desensitization -102.4dBm(FER≤1%,-30dBm@±900KHz)
Intermediation Spurious
Response Attenuation
-102.4dBm(FER≤1%,-43dBm@±900 KHz/±1700KHz)
-91.4dBm(FER≤1%,-32dBm @±900 KHz/±1700KHz)
-80.4dBm(FER≤1%,-21dBm @±900 KHz/±1700KHz)
Conducted Spurious
Emission
<-76dBm/1MHz（RX band）
<-61dBm/1MHz（ TX band）
<-47dBm/30KHz（other frequency）
Cellular Band TX
Frequency range
824MHz～849MHz
Maximum Frequency error ±300KHz
Maximum output power
24dBm [-3dB~~+2dB] ;
Minimum controlled output
power
<-50dBm
Standby output power <-61dBm
Code domain power
The code domain power in each inactive code channel
shall be 23 dB or more below the total output power
measured on both the I and Q data channel combined.
Time reference ±1.0uS
Waveform quality >0.944
Range of open loop output
（test1：－25dBm/1.23MHz）－47.7±9.5dBm