Evaluates MAX9223/MAX9224
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MAX9223/4EVKIT (pdf) |
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Evaluates MAX9223/MAX9224 MAX9223/4 Evaluation Kit The MAX9223/4 evaluation kit EV kit is a fully assembled and tested PCB that simplifies the evaluation of the MAX9223 22-bit, 5MHz to 10MHz serializer and the MAX9224 22-bit, 5MHz to 10MHz deserializer. The MAX9223 IC transfers 22-bit parallel 1.8V to 3.3V logic to an LCDS 2-wire serial interface. The MAX9224 IC accepts an LCDS data and converts it back to a 22-bit parallel 1.8V to 3.3V logic signal. The MAX9223 serializer operates from a single +2.375V to +3.465V supply and accepts +1.71V to +3.465V inputs. The MAX9224 deserializer operates from a +2.375V to +3.465V core supply and has a separate output buffer supply, allowing +1.71V to +3.465V output high levels. 22-Bit Parallel I/O Interface Directly to 1.8V to 3.3V Logic 2-Wire Serial Interface Independent Evaluation of Serializer MAX9223 and Deserializer MAX9224 Low-Voltage, Low-Power Operation Including Flat-Flex Cable for 2-Wire Interface Fully Assembled and Tested Component Suppliers SUPPLIER Taiyo Yuden TDK Corp. PHONE 800-348-2496 847-803-6100 WEBSITE Note Indicate that you are using the MAX9223/MAX9224 when contacting these component suppliers. Ordering Information PART TEMP RANGE MAX9223/4EVKIT 0°C to +70°C *EP = Exposed paddle. IC PACKAGE 28 TQFN-EP* Component List DESIGNATION QTY C1, C2, C3 10µF ±20%, 6.3V X5R 3 ceramic capacitors 0805 Taiyo Yuden JMK212BJ106MG TDK C2012X5R0J106M C4, C5, C6 0.1µF ±10%, 16V X7R 3 ceramic capacitors 0603 TDK C1608X7R1C104K C7, C8, C9 0.01µF ±10%, 25V X7R ceramic 3 capacitors 0402 TDK C1005X7R1E103K EX_PCLKIN, POWER-DOWN BNC PCB-mount connectors DESIGNATION QTY J1, J2, J3 3 2 x 10-pin headers 1 2 x 24-pin header JU1, JU4, JU5 3 2-pin headers JU2, JU3 2 3-pin headers R1, R2 2 ±1% resistors 0402 0 Not installed, short by PC trace 0402 1 ±5% resistor 0603 R5, R6 2 ±1% resistors 1206 1 MAX9223ETI 4mm x 4mm, 28-pin TQFN 1 MAX9224ETI 4mm x 4mm, 28-pin TQFN 2 Shunts 1 PCB MAX9223/4 Evaluation Kit Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at Evaluates MAX9223/MAX9224 MAX9223/4 Evaluation Kit Quick Start Recommended Equipment • Three separate 3.0V, 50mA power supplies • Data generator • Logic analyzer Procedure The MAX9223/4 EV kit is fully assembled and tested. Caution Do not turn on the power supplies until all connections are completed. 1 Connect JU1 to JU4 with a two-connection, flat-flex cable included in the EV kit. 2 Verify that there is a shunt across JU3 pins 2-3 power-down . 3 Connect the clock signal from the data generator to pin 2 of JU2 and connect the ground to pin 1 of JU2. 4 Connect the desired data to the 22-bit parallel inputs see Table 3 for input bit location . 5 Connect the 22-bit parallel outputs to the input of the logic analyzer see Table 3 for output bits location . 6 Connect the output clock signal to the logic analyzer, pin 2 of JU5. 7 Connect the positive of a 3.0V power supply to the VDD1 pad, and then connect the negative of the power supply to GND1. 8 Connect the positive of a 3.0V power supply to the VDD2 pad, and then connect the negative of the power supply to GND2. 9 Connect the positive of a 3.0V power supply to the VDDO pad, and then connect the negative of the power supply to GND3. 10 Turn on all three power supplies, and then enable the data generator and logic analyzer. 11 Move the shunt on JU3 to pins 1-2 power-up . 12 Compare the input signals of the serializer and the output signals of the deserializer with the logic analyzer. Detailed Description The MAX9223/4 EV kit is a fully assembled and tested PCB that simplifies the evaluation of the MAX9223 22-bit, 5MHz to 10MHz serializer and the MAX9224 22bit, 5MHz to 10MHz deserializer. The MAX9223/ MAX9224 serializer/deserializer chipset reduces wiring by serializing 22 bits onto a single differential pair. The 2wire serial interface uses LCDS for low-EMI, high common-mode noise immunity, and ground-shift tolerance. The MAX9223 serializer operates from a single +2.375V to +3.465V supply and accepts +1.71V to +3.465V inputs. The MAX9224 deserializer operates from a +2.375V to +3.465V core supply and has a separate output buffer supply, allowing +1.71V to +3.465V output-high levels, VDDO VDD. Transferring Data from Serializer to Deserializer The EV kit provides two 2-pin headers, JU1 and JU4, for transferring data from the serializer to the deserializer with a flat-flex cable. JU1 is the output of the serializer, and JU4 is the input of the deserializer. The 2-pin header, JU1, provides easy connection for either using a differential probe to monitor the output or connecting a flatflex cable to the deserializer. Pads SDO+/SDO- and SDI+/SDI- are provided for extra connections. Parallel Clock Input The MAX9223/4 EV kit allows the MAX9223 to accept a clock from either a data generator/logic analyzer or a clock from an individual function generator, which is terminated, by changing jumper JU2. See Table 1 for JU2 functions. The clock and the data inputs to the MAX9223 need to be synchronized. Table JU2 Functions SHUNT LOCATION PCLKIN PIN Open Clock externally connected to pin 2 of JU2 PARALLEL CLOCK INPUT Using a clock from a data generator/logic analyzer Pins 2-3 Connected to EX_PCLKIN connector, terminated Using a clock from a function generator Evaluates MAX9223/MAX9224 MAX9223/4 Evaluation Kit Power-Down Input The MAX9223/4 EV kit incorporates jumper JU3 to control the PWRDN pin. See Table 2 for JU3 functions. For normal operation, PCLKIN must be running before driving PWRDN high. |
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