MAX2055EVKIT Maxim Integrated Products, MAX2055EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX2055EVKIT
• Description: EVAL KIT FOR MAX2055
• Manufacturer: Maxim Integrated Products
• Type: Amplifierr

Specifications of MAX2055EVKIT

• Frequency: 30MHz ~ 300MHz
• For Use With/related Products: MAX2055
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX2055 EV kit is fully assembled and factory test-
ed. Follow the instructions in the Connections and
Setup section for proper device evaluation. Table 1 lists
the attenuation setting vs. gain-control bit.
• DC supply capable of delivering 5.25V and 400mA
• HP 8648 (or equivalent) signal source
• HP 8561E (or equivalent) spectrum analyzer capa-
• Two digital multimeters (DMMs) to monitor V
• HP 8753D (or equivalent) network analyzer to mea-
• Filters to attenuate harmonic output of signal sources,
This section provides a step-by-step guide to testing
the basic functionality of the EV kit. As a general pre-
caution to prevent damaging the outputs by driving
high-VSWR loads, do not turn on DC power or RF
signal generators until all connections are made.
Connect the header pins for B4–B0 to GND for maxi-
mum gain (20dB typ). See Table 1 for other gain-
setting configurations. To set a logic high on B4–B0,
leave the respective header pin unconnected as on-
board resistors pull up the logic to +5V. To control
B4–B0 using external logic (voltage limits per the data
sheet), ensure that +5V is applied to the chip. Failure
to do so can cause the on-chip ESD diodes to draw
significant current and can damage the part.
1) Connect 50Ω terminations to RF_IN and RF_OUT.
2) With the DC supply disabled, set it to +5.0V (through
3) Enable the DC supply; the supply current should
1) Connect the RF signal generator to the RF_IN SMA
MAX2055 Evaluation Kit
2
of continuous current
ble of covering the MAX2055’s frequency range, as
well as a few harmonics
I
sure return loss and gain
if harmonic measurements are desired
a low internal resistance ammeter, if desired) and
connect to the +5V and GND terminals on the EV kit.
If available, set the current limit to 400mA.
read approximately 250mA.
connector. Do not turn on the generator’s output. Set
CC
_______________________________________________________________________________________
, if desired
Test Equipment Required
Connections and Setup
Testing the Supply Current
Testing the Power Gain
Quick Start
Gain Setting
CC
and
2) Connect the spectrum analyzer to the RF_OUT SMA
3) With the DC supply disabled, set it to +5.0V (through
4) Connect B4–B0 to GND for 0dB attenuation.
5) Enable the DC supply, and then activate the RF gen-
Table 1. Attenuation Setting vs. Gain-
Control Bits
*Enabling B4 disables B3 and the minimum attenuation is
16dB.
ATTENUATION
the generator to an output frequency of 70MHz, and
set the generator power level to -15dBm.
connector. Set the spectrum analyzer to a center fre-
quency of 70MHz and a total span of 1MHz.
a low internal-resistance ammeter, if desired) and
connect to the +5V and GND terminals on the EV kit.
If available, set the current limit to 400mA.
erator’s output. A 70MHz signal shown on the spec-
(dB)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0
1
2
3
4
5
6
7
8
9
(16dB)
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
(8dB)
B3*
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
(4dB)
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
(2dB)
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
(1dB)
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1