MAX9209EVKIT+ Maxim Integrated Products, MAX9209EVKIT+ Datasheet - Page 5

• Manufacturer Part Number: MAX9209EVKIT+
• Description: KIT EVAL FOR MAX9209
• Manufacturer: Maxim Integrated Products

Specifications of MAX9209EVKIT+

• Main Purpose: Interface, Serializer, Deserializer (SERDES)
• Utilized Ic / Part: MAX9209
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The power-down mode in the MAX9209 and MAX9244
puts the outputs in high impedance, stops the PLL, and
reduces supply current to 50µA or less by moving the
shunts of JU2 and JU11 to the 2-3 position. When JU2
and JU11 are in the 1-2 position, the LVDS outputs of
the MAX9209 are not driven until the PLL locks and the
LVDS outputs of the MAX9244 are driven low until the
PLL locks.
The MAX9244 can set the frequency spread to ±4%,
±2%, or no spread by moving JU10 to the appropriate
shunt position (Table 1).
The MAX9209/MAX9244 EV kit offers the user an inter-
nal test mode to quickly verify full functionality and veri-
fication of the quality of the SerDes link. This mode is
called pseudo-random bit sequence, or PRBS mode.
Pseudo-Random Bit Sequence
_______________________________________________________________________________________
Spread-Spectrum Frequency
MAX9209/MAX9244 Evaluation Kit
(PRBS) Mode
Power-Down
The MAX9209 features an on-chip PRBS generator that
can be utilized to generate a pseudo-random bit
stream to evaluate the quality and performance by
comparing the output of the serializer (prior to the
link/cable) with the input of the deserializer (after the
link/cable).
To activate this feature, the MAX9209 must first enter
power-down mode by moving the shunt of JU2 to the 2-
3 position. Activate the internal PRBS mode by moving
the shunt of JU3 to the 2-3 position.
The MAX9209 is powered by connecting PLL1_VCC,
LVDS1_VCC, and VCC1 to a DC power supply at 3V to
3.6V. The MAX9209 can be configured to reduce wiring
to the supply and ground pads by moving the shunts of
JU16 and JU17 to the 1-2 position. The MAX9244 is
powered by applying 3.3V to 3.6V to the PLL2_VCC,
LVDS2_VCC, VCC2, and VCC0 pads. The MAX9244
can be configured to reduce wiring to the supply and
ground pads by moving the shunts of JU18, JU19, and
JU20 to the 1-2 position.
Power Supplies
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