ON Semiconductor NCN8024GEVB User Manual
NCN8024GEVB Series
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NCN8024
SOIC-28 & TSSOP-28
Evaluation Board
User's Manual
Introduction
This document gives a detailed description of the
NCN8024 Evaluation Boards (SOIC−28 & TSSOP−28
versions) with the Bill Of Material (BOM), board schematic
and layout. The appropriate lab test setup is also provided.
The NCN8024 Evaluation Boards have been designed to
help for a quick evaluation of the NCN8024 Smart card
interface device.
This document has to be used with the NCN8024
datasheet. The datasheet contains full technical details
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EVAL BOARD USER’S MANUAL
regarding the NCN8024 specifications and operation. The
board (FR4 material) is implemented in two metal layers.
The top and Bottom layers have thicknesses of 35 mm. The
PCB thickness is 1.6 mm with dimensions of 100 mm by
74 mm (see Figure 1).
These evaluation boards can be used to evaluate the device
performance.
Figure 1. Evaluation Boards − SOIC−28 & TSSOP−28
Table 1. EQUIPMENT
Description Main Features Example of Equipment (Note 1) Qty
Regulated Power Supply 200 mA DC Current Capability Tektronix PS2520G 2
Multimeter Keitley 2000 or 2001 2
Sourcemeter Keitley 2400 1
Oscilloscope 500 MHz Bandwidth, Four Channel Scope,
Voltage Probe 4 Probes 500 MHz Bandwidth Tektronix or Lecroy 4
Waveform Generator Pattern Genarator Agilent 81104A 80 MHz or HP8110A
SMB Cable External Clock Input 1
1. Equipment used in the context of this Application Note Manual.
2. Greater Scope memory per channel offers better resolution.
Semiconductor Components Industries, LLC, 2012
June, 2012 − Rev. 0
Min 1 Mbit Memory per Channel (Note 2)
1 Publication Order Number:
Tecktronix TDS744, 754 or 784/TDS5054
Series or Lecroy WR5060 TDS5104B,
1 GHz, 5GS/s
150 MHz 2 Outputs
1
1
EVBUM2127/D
NCN8024GEVB Series
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Test Procedure
See Figure 2.
Initial Setups (Figure 2)
The initial setups given here are recommended before
starting measurements on the board.
Set the CMDVCC/in the OFF Position (High)
Set CLKDIV1 and CLKDIV2 into Low Position
(Lowest Frequency Fclkin)
Set 5V/3Vbar into a 5V Position
As a Precaution, Turn the 1 kW Potentiometer to Obtain
a Resistor Output Value of 1 kW, and then Connect the
Jumper
DC Power Supplies
Two power supplies are used to bias the demo board.
V
is the input voltage of the DC-DC converter. VDD is
DDP
the “digital” power supply which biases the input stages of
the NCN8024 device (control and signal inputs).
V
and V
DD
correct operation.
Connect the V
Connector J1
Connect the V
Connector J2
Power up V
Power up V
must be connected to the board for a
DDP
Power Supply Using the 2 Pin Male
DD
Power Supply Using the 2 Pin Male
DDP
in the Range 4.5 V–5.5 V
DDP
in the Range 2.7 V–5.5 V
DD
Clock Frequency
CLKDIV1 and CLKDIV2 select the frequency divider
according to the Table 2.
Table 2. CLOCK FREQUENCY
CLKDIV1 CLKDIV2 Divider
1 0 DIV 1/1
1 1 DIV 1/2
0 1 DIV 1/4
0 0 DIV 1/8
Card Presence
The socket we use is a normally open, so CDR-PRES/ has
been chosen; nevertheless the CRD_PRES and
CRD_PRES/ test points can also be used for signaling the
presence of a card and starting up the circuit.
Start the Measurement
To start the measurements, set the board as it follows:
Set CLKDIV1 and CLKDIV2 to Select the Correct
Frequency
Set 5V/3Vbar to Select the Correct Output Voltage
Jumpers:
1kW Potentiometer Jumper: Not Connected to Start
Measurement
Finally, Toggle/CMDVCC from High to Low to Start
the Device (Activation Sequence Run)
Figure 2. SOIC−28 Board Description (Equivalent for TSSOP−28)
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2
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