ADL5363-EVALZ AD [Analog Devices], ADL5363-EVALZ Datasheet - Page 19

• Manufacturer Part Number: ADL5363-EVALZ
• Description: 2300 MHz to 2900 MHz Balanced Mixer
• Manufacturer: AD [Analog Devices]

APPLICATIONS INFORMATION
BASIC CONNECTIONS
The
cies (RF) primarily between 2300 MHz and 2900 MHz to lower
intermediate frequencies (IF) between 30 MHz and 450 MHz.
Figure 49 depicts the basic connections of the mixer. To prevent
nonzero dc voltages from damaging the RF balun or LO input
circuit, ac-couple the RF and LO input ports. The RFIN
matching network consists of a series 1.5 pF capacitor and a
shunt 12 nH inductor to provide the optimized RF input return
loss for the desired frequency band.
IF PORT
The real part of the output impedance is approximately 50 Ω, as
seen in Figure 26, which matches many commonly used SAW
filters without the need for a transformer. This results in a
voltage conversion loss that is approximately the same as the
power conversion loss, as shown in Table 3.
ADL5363
mixer is designed to downconvert radio frequen-
+5V
0.01µF
4.7µF
RF-IN
+5V
10µH
10pF
12nH
10pF
1.5pF
+5V
1
2
3
4
5
6
20
10pF
Figure 49. Typical Application Circuit
IF1_OUT
560pF
C25
Rev. 0 | Page 19 of 24
19
GENERATOR
7
T1
R
BIAS LO
BIAS
560pF
C24
18
8
10pF
BIAS RESISTOR SELECTION
An external resistor, R
of the integrated amplifiers at the LO terminals. It is necessary
to have a sufficient amount of current to bias the internal LO
amplifier to optimize dc current vs. optimum IIP3 performance.
Figure 37 and Figure 38 provide the reference for the bias
resistor selection when lower power consumption is considered
at the expense of conversion gain and IP3 performance.
MIXER VGS CONTROL DAC
The
VGS1 (Pin 13), that allow programmability for internal gate-to-
source voltages for optimizing mixer performance over desired
frequency bands. The evaluation board defaults both VGS0 and
VGS1 to ground.
R1
0Ω
ADL5363
ADL5363
17
9
10kΩ
10kΩ
features two logic control pins, VGS0 (Pin 12) and
16
10
15
14
13
12
11
BIAS LO
22pF
22pF
, is used to adjust the bias current
10pF
LO2_IN
+5V
LO1_IN
ADL5363