Normal Iq Output Mode; Frequency Deviation Output Mode - Analog Devices ADRV9005 Reference Manual

Reference Manual
RECEIVER DEMODULATOR
Note: The current ADRV9001 software release does not support the resampler configuration.
Round Module
The round module in rxnbdem maps the ADRV9001 internal data path bit-width to the receiver SSI output. This module can be bypassed if the
IQ-22bit mode is chosen.
The round module can output 16-bit or 15-bit I/Q data to the receiver SSI output. If required, the round module can output 16-bit I data to the
receiver SSI output with the 16-bit output Q data set as '0'.

NORMAL IQ OUTPUT MODE

The normal IQ output mode is applicable for both wideband and narrowband as the frequency discriminator is bypassed. Except for the
rounding, all other modules can be bypassed.
output stage of the receiver channel.
In the normal IQ output mode, the rxnbdem can provide the signal processing resources as the following:
A spur-free carrier frequency offset correction
►
A profile-switchable channel filter
►
A precise IQ resampler (not supported by software yet)
►
The BBIC can manually enable and control all the above resources by API (the future software release provides support).

FREQUENCY DEVIATION OUTPUT MODE

The frequency deviation output mode is only applicable for the narrowband modes. Except for the round module and frequency discriminator,
all other modules can be bypassed. See
analog.com
Figure 189. Maximum Magnitude/Phase Error of the Resampler
Figure 190 shows that the ADRV9001 receiver narrowband demodulator can be the common
Figure 190. Rxnbdem in Normal IQ Output Mode
Figure 191. The ADRV9001 receiver narrowband demodulator contains a frequency discriminator
ADRV9001
Rev. A | 215 of 377