Data Sheet

AC4790
Datasheet
https://www.lairdconnect.com/
6
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2 DETAILED SPECIFICATIONS
Table 1: AC4790 Specification table
GENERAL
20-Pin Interface Connector
Molex 87759-0030, mates with Samtec SMM-110-02-S-D
MMCX RF Connector
Johnson Components 135-3711-822
Antenna
AC4790-1x1: Customer must provide
AC4790-200: MMCX Connector
AC4790-1000: MMCX Connector
AC4790LR-1000: MMCX Connector
See Approved Antenna List
Serial Interface Data Rate
Baud rates from 1200 bps to 115200 bps
Power Consumption (typical)
Duty Cycle (TX = Transmit; Rx = Receive)
10% TX
50% TX
100% TX
100% RX
AC4790-1x1:
33mA
54mA
80mA
28mA
AC4790-200:
38mA
68mA
106mA
30mA
AC4790-1000:
130mA
650mA
1300mA
30mA
Channels
AC4790-1x1/-200: 16 channels, US/Canada
AC4790-1x1/-1000M: 32 channels, US/Canada
AC4790-1x1/-200/-1000: 8 channels, Australia/US/Canada
Security
One byte System ID. 56-bit DES encryption key.
Interface Buffer Size
Input/Output: 256 bytes each
TRANSCEIVER
Frequency Band
902 – 928 MHz US/Canada
915 – 928 MHz Australia, US/Canada (optional)
RF Rate
76.8 kbps fixed
RF User Data Rate
~25 kbps average
RF Technology
Frequency Hopping Spread Spectrum (FHSS)
Output Power
Conducted (no antenna)
EIRP (3dBi gain antenna)
AC4790-1x1:
10 mW typical
20 mW typical
AC4790-200:
100 mW typical
200 mW typical
AC4790-1000:
743 mW typical
1486 mW typical
Supply Voltage
AC4790-1x1:
3.3V, ±50 mV ripple
AC4790-200:
3.3 – 5.5V, ±50 mV ripple
AC4790-1000M/
AC4790LR-1000M*:
Pin 10: 3.3 – 5.5V ±50 mV ripple
Pin 11: 3.3 ±3%, ±100 mV ripple
* Pins 10 and 11 may be tied together, provided the supply voltage never falls
below 3.3V, is capable of supplying 1.5A of current, and has a +/-50mV ripple