AC4490LR-200M Laird Technologies, AC4490LR-200M Datasheet - Page 32

• Manufacturer Part Number: AC4490LR-200M
• Description: TXRX 900MHZ 3.3-5.5V TTL 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4490LR-200M

• Frequency: 902MHz ~ 928MHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: AMR, Fire & Security Alarms, Telemetry
• Power - Output: 5mW ~ 200mW
• Sensitivity: -110dBm
• Voltage - Supply: 3.3V, 5V
• Current - Transmitting: 68mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: MMCX
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Output Power: 200 mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2 6
H A R D W A R E I N T E R F A C E
U P _ R e s e t
UP_Reset provides a direct connection to the reset pin on the AC4490 microprocessor and is used to force a soft
reset.
C M D / D a t a
When logic High, the transceiver interprets incoming OEM Host data as transmit data to be sent to other transceivers
and their OEM Hosts. When logic Low, the transceiver interprets OEM Host data as command data.
A D I n
AD In can be used as a cost savings to replace Analog-to-Digital converter hardware. Reading of this pin can be
performed locally using the Read ADC command found in the On-the-Fly Control Command Reference.
I n R a n g e
Reports logic Low when a Client transceiver is in range of a Server radio operating on the same RF Channel and
System ID. If a Client cannot hear a Server for the amount of time defined by Range Refresh, it will drive In_Range
High and enter search mode looking for a Server. When a server is detected, In_Range will be asserted Low.
In_Range will always report Low on Server transceivers.
1.2
0.8
0.6
0.4
0.2
1
0
-105
F i g u r e 8 : R S S I V o l t a g e v s . R e c e i v e d S i g n a l S t r e n g t h
-100
-95
-90
-85
Signal at Re ce iv e r (dBm)
-80
-75
-70
-65
-60
-55
-50