Laird AC4490, Hardware Integration Manual

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AC4490 Hardware Integration Guide
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www.lairdtech.com/ramp 6
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20 Pin Interface Connector Molex 87759-0030, mates with Samtec SMM-110-02-S-D
RF Connector
MMCX jack Johnson Components 135-3711-822
Antenna
AC4490-1x1: Customer must provide
AC4490-200: External antenna with MMCX plug or integral antenna
AC4490-1000: External antenna with MMCX plug
Serial Interface and I/O
3.3V TTL
UART baud rates from 1200 bps to 115,200 bps
Power Consumption
(typical)
Duty Cycle (Tx = Transmit, Rx = Receive)
10%Tx 50%Tx 100% 100%Rx
Pwr-
down Deep
Sleep
1x1 33 mA 54 mA 80 mA 28 mA 15 mA 3 mA
200 38 mA 68 mA 106 mA 30 mA 19 mA 6 mA
1000 130 mA 650 mA 1300 mA 30 mA 19 mA 6 mA
Channels
3 Channel Sets comprising 56 total channels.
AC4490-1x1: 3 Channel Sets
AC4490-200: 3 Channel Sets
AC4490-1000: 2 Channel Sets
Security One byte System ID. 56-bit DES encryption key
Interface Buffer Size Input/Output: 256 bytes each
TRANCEIVER
Frequency Band
902 – 928 MHz
RF Data Rate 76.8 Kbps fixed
RF Technology Frequency Hopping Spread Spectrum (FHSS)
Output Power
Conducted (no antenna) EIRP (3 dBi gain antenna)
1x1 10 mW typical 20 mW typical
200 100 mW typical 200 mW typical
1000 743 mW typical 1486 mW typical
Supply Voltage 1x1 VCC: 3.3 V, ±50 mV ripple
VPA: 3.3 V, ±50 mV ripple
200 VCC: 3.3 – 5.5 V, ±50 mV ripple
VPA: 3.3 – 5.5 V, ±50 mV ripple
1000* VCC: 3.3 – 5.5 V ±50 mV ripple
VPA: 3.3 ±3%, ±100 mV ripple
*
VCC & VPA may be tied together, provided the supply voltage never falls
below 3.3 V and is capable of supplying 1.5 A of current. VCC & VPA are
internally connected on the AC4490-200 only.
Sensitivity RF Data Rate Typical
76.8 Kbps -100 dBm
76.8 Kbps (AC4490LR-1000) -110 dBm
Note: Receive sensitivity listed for US and Australian modes. Radios ordered
per Brazilian regulations have a receive sensitivity of -80 dBm.
EEPROM write cycles 20000
Hop period 20 ms