Evaluation Board Hardware; Power Supply; Rf Inputs - Analog Devices ADRF6650-EVALZ User Manual

UG-1026

EVALUATION BOARD HARDWARE

*THE DEFAULT CONFIGURATION IS SINGLE-ENDED
OUTPUT THROUGH THE 1:1 BALUN AND OUTPUT
MATCHING NETWORK. THE OUTPUT IS ROUTED
TO IFOUT_A_POS.
The ADRF6650-EVALZ provides the support circuitry required
to operate the ADRF6650 in various modes and configurations.
Figure 2 shows the typical measurement setup that evaluates the
performance of the ADRF6650.

POWER SUPPLY

The ADRF6650-EVALZ evaluation board requires a single, 5.6 V
power source. The power supply design on the ADRF6650-
EVALZ evaluation board consists of low dropout dc regulators
that regulate the 5.6 V source to 3.3 V power rails for the main IC.
SINGLE-ENDED
REFERENCE
INPUT
RF INPUT A
RF INPUT B
USB CONNECTION
SDP-S CONTROLLER
TO COMPUTER
BOARD
Figure 2. ADRF6650-EVALZ Typical Measurement Setup
Rev. A | Page 4 of 17
CHANNEL A
SINGLE SUPPLY
IF OUTPUT
+5.6V
GROUND
CHANNEL B
SINGLE-ENDED
IF OUTPUT

RF INPUTS

The ADRF6650 supports two single-ended 50 Ω terminated RF
inputs. The operational frequency range of the RF inputs is from
450 MHz to 2700 MHz and the inputs must be ac-coupled.
ADRF6650-EVALZ
LO OUTPUT
EXTERNAL LO INPUT
User Guide