MAX2560/MAX2566/MAX2572 Evaluation Kits
5) With MAX2560/MAX2566/MAX2572 control software
Quick Start
active in the REG screen, set the SHDN box to 0 to
The MAX2560/MAX2566/MAX2572 EV kits are fully
place the IC in shutdown mode.
assembled and factory tested. Follow the instructions in
6) Turn on the power supplies.
the Connections and Setup section.
Cellular CDMA Mode
Perform the following steps to evaluate the MAX2560 in
Test Equipment Required
This section lists the recommended test equipment to
verify the operation of the MAX2560/MAX2566/
MAX2572. It is intended as a guide only, and substitu-
tions may be possible.
the cellular CDMA mode:
1) Verify shunt JU24 is in the LOTDMA position.
2) With MAX2560/MAX2566/MAX2572 control software
active in the REG screen, use Table 1 to set the oper-
ating mode to cellular CDMA. Also, change the refer-
ence frequency to 19.2MHz in the control software.
• One RF signal generator capable of delivering -5dBm
of output power in the 1GHz to 3GHz frequency
range (HP8648 or equivalent) for the external RF LO
• An RF spectrum analyzer with optional digital modu-
lation personality (Rohde & Schwarz FSEA30 or
equivalent)
3) Connect the I and Q outputs of the arbitrary wave-
form generator to the I (J15) and Q (J16) ports. Set
the generator to reverse-channel CDMA settings.
Set the output voltage level to 400mV
.
PK
• A power supply capable of providing 200mA at +5V
• A power supply capable of providing 50mA at 6.8V
• A power supply capable of providing -50mA at -3.2V
4) Connect RFL (J9) to the spectrum analyzer.
Configure the spectrum analyzer to measure ACPR
for the reverse-channel CDMA. Set the center fre-
quency to 836MHz with 50MHz span and a
+10dBm reference level.
• I/Q arbitrary waveform generator (Agilent E4433B or
equivalent)
• PC (486DX33 or better) with WindowsTM95/98, 2000,
NT 4.0 or later operating system and an available
parallel port
5) Adjust the R6 (VGCIF) to obtain an output power of
+8dBm after accounting for cable and connector
loss. The ACPR in 30kHz bandwidth at 885kHz
offset should be -54dBc, and the ACPR in 30kHz
bandwidth at 1.98MHz offset should be -65dBc.
• INTF2300 interface board (supplied with EV kit)
Connections and Setup
This section provides step-by-step instructions for get-
ting the EV kit up and running in CDMA, WCDMA, and
GSM modes.
PCS CDMA Mode
Perform the following steps to evaluate the MAX2560 in
the PCS CDMA mode:
1) Verify shunt JU24 is in the LOTDMA position.
1) Verify shunts JU6–JU22 and JU28–JU31 are in place.
2) With MAX2560/MAX2566/MAX2572 control software
active in the REG screen, use Table 1 to set the
operating mode to PCS CDMA. Also, change the ref-
erence frequency to 19.2MHz in the control software.
2) Connect the INTF2300 interface cable to the EV kit.
Note: Pin 1 of the interface cable corresponds to
the red wire. Pin 1 is designated in silkscreen on
each of the PC boards.
3) Connect the I and Q outputs of the arbitrary wave-
form generator to the I (J15) and Q (J16) ports. Set
the generator to reverse-channel CDMA settings.
3) With the power supply turned off, connect a +5.0V
power supply to the header labeled V5.0 (J31).
Connect the power-supply ground to the header
labeled GND (J5). (The MAX2560 requires two
additional power supplies. Connect the +6.8V
power supply to JU28, and connect the -3.2V to
TP2. Connect the grounds to GND (J5) or GND
(J20), or both.)
Set the output voltage level to 400mV
.
PK
4) Connect RFH0 (J1) to the spectrum analyzer.
Configure the spectrum analyzer to measure ACPR
for the reverse-channel CDMA. Set the center fre-
quency to 1880MHz with 50MHz span and a
+10dBm reference level.
4) Install and run the MAX2560/MAX2572 control soft-
ware. The MAX2566 has its own control software.
Software is available for download on the Maxim
website at www.maxim-ic.com.
5) Adjust the R6 (VGCIF) to obtain an output power of
+8dBm after accounting for cable and connector
loss. The ACPR in 30kHz bandwidth at 1.25MHz
offset should be -54dBc, and the ACPR in 30kHz
bandwidth at 1.98MHz offset should be -65dBc.
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