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3.
8 ADC
Interface
The IMA2 contains two ADC ports; the characteristics will be updated according to
the ALT1250 datasheet in the future.
Table 3-4. ADC characteristics (TBD)
3.9 RF Interface
Each IMA2 module has only one RF pad; developers must connect it via the 50 Ω
traces to the main board.
Main antenna
pad (Pin15) – RX/TX path
RF GNSS
pad (Pin21) – GNSS RX path
3. 9.1 Bandwidth Support
Band
Bandwidth
1.4 MHz
3 MHz
5 MHz
10 MHz
15 MHz
20 MHz
LTE Band 2
LTE Band 4
LTE Band 12
-
-
Table 3-5. Bandwidth support
3. 9.2 RF Transmission Specifications
Band
Item
Parameter
Unit
Min.
Typ.
Max.
LTE Band 2
Max. TX Power 20 MHz 1 RBs/QPSK dBm
20.3
23
25.7
LTE Band 4
Max. TX Power 20 MHz 1 RBs/QPSK dBm
20.3
23
25.7
LTE Band 12
Max. TX Power 10 MHz 1 RBs/QPSK dBm
20.3
23
25.7
Table 3-6. Conductive Tx output power
