Datasheet
MAX9247/MAX9248 Evaluation Kit
Evaluates: MAX9247/MAX9248
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Table 1. MAX9247/MAX9248 EV Kit Jumper Descriptions (JU1−JU21) (continued)
JUMPER FUNCTION
SHUNT
POSITION
DESCRIPTION
JU2
MAX9248 LVTLL/
LVCMOS range input
1-2*
Connects the RNG1 pin of the MAX9248 to GND2 for logic 0 (see the
MAX9248 IC data sheet to determine the frequency range)
MAX9248 LVTLL/
LVCMOS range input
1-3 Connects the RNG1 pin of the MAX9248 to header H4-7
MAX9248 LVTLL/
LVCMOS range input
1-4
Connects the RNG1 of the MAX9248 to DVCC2 for logic 1 (see the
MAX9248 IC data sheet to determine the frequency range)
JU3
MAX9248 LVTLL/
LVCMOS range input
1-2*
Connects the RNG0 pin of the MAX9248 to GND2 for logic 0 (see the
MAX9248 IC data sheet to determine frequency range)
MAX9248 LVTLL/
LVCMOS range input
1-3 Connects the RNG0 pin of the MAX9248 to header H4-5
MAX9248 LVTLL/
LVCMOS range input
1-4
Connects RNG0 pin of the MAX9248 to DVCC2 for logic 1 (see the
MAX9248 IC data sheet to determine the frequency range)
JU4
MAX9248
power-down
1-2 Pulls the PWRDWN pin of the MAX9248 to low for shutdown
MAX9248
power-down
1-3 Connects the PWRDWN pin of the MAX9248 to header H4-3
MAX9248
power-down
1-4* Pulls the PWRDWN pin of the MAX9248 high for full functionality
JU5
MAX9248 spread
spectrum
1-2
Connects the SS pin of the MAX9248 to GND2 for data and clock output
spread ±2% relative to REFCLK
MAX9248 spread
spectrum
1-3 Connects the SS pin of the MAX9248 to header H4-1
MAX9248 spread
spectrum
1-4*
Connects the SS pin of the MAX9248 to DVCC2 for data and clock output
spread ±4% relative to REFCLK
JU6
MAX9247 hardwired
inputs
1-2* Connects even pins of headers H5–H9 to DVCC2
MAX9247 hardwired
inputs
2-3 Connects even pins of headers H5–H9 to GND2
JU7
MAX9247
preemphasis
or MOD1
1-2*
Connects the PRE pin of the MAX9247 to DVCC2 for enabling preempha-
sis
MAX9247
preemphasis
or MOD1
2-3
Connects the PRE pin of the MAX9247 to GND2 for disabling preemphasis
or used for PRBS mode