ON Semiconductor NB3N502DEVB User Manual Download Page 5

NB3N502DEVB

http://onsemi.com

5

BOARD LAYOUT

The evaluation board is constructed with Getek material with 50 

W

 trace impedances and is designed to minimize noise,

achieve high bandwidth and minimize crosstalk.

Layer Stack

L1 Signal
L2 Ground
L3 V

DD

L4 Signal

Figure 6. NB3N502 Evaluation Board Top (Component) Layer

S1

X2

S0

CLK

REF

X1/CLK

DUT.1

DUT.4

DUT.8

DUT.7

DUT.6

DUT.5

Figure 7. NB3N502 Evaluation Board SMA – Ground Layer

S1

X2

S0

CLK

REF

X1/CLK

DUT.1

DUT.4

DUT.8

DUT.7

DUT.6

DUT.5

Summary of Contents for NB3N502DEVB

Page 1: ...e NB3N502 data sheet which contains full technical details on device specifications and operation www onsemi com Board Features Fully Assembled Evaluation Board Accommodates the Electrical Characterization of the NB3N502 in the SOIC 8 Package Supports the Use of a 5 MHz to 27 MHz Through hole or Surface Mount Crystal SMA Connectors are Provided for Auxiliary Input and Output Interfaces Incorporate...

Page 2: ...on chip capacitance is approximately 12 pF per pin CIN1 and CIN2 A parallel resonant fundamental mode crystal should be used The evaluation board includes pads for small capacitors from X1 CLK to ground and from X2 to ground These capacitors CL1 and CL2 are used to adjust the stray capacitance of the board to match the nominally required crystal load capacitance CLOAD crystal Crystal load capacito...

Page 3: ... by way of the device s internal pullup and pulldown resistors Table 2 CLOCK MULTIPLIER SELECT TABLE S1 SW4 DUT 7 S0 SW3 DUT 6 Multiplier L L 2X L H 5X M L 3X M H 3 33X H L 4X H H 2 5X L GND H VDD M OPEN unconnected Pin S1 defaults to M when left open Pin S0 defaults to H when left open Table 3 HEADER PIN CONDITIONS Header Slide Switch Multiplier Control SMA Multiplier Control JMP1 Open Open JMP2 ...

Page 4: ... 1 and 2 R1 1 Not populated R2 1 Not populated R3 1 Not populated C1 1 Not populated C2 1 Not populated C9 1 22 mF 10 Size C Tantalum Capacitor T494C226K016AT KEMET C10 1 0 01 mF 10 0603 Ceramic Capacitors 06035C103KAT2A AVX C11 1 0 1 mF 10 0603 Ceramic Capacitors 06035C104KAT2A AVX Y1 1 25 MHz Crystal U1 1 NB3N502 8 pin SOIC Pb Free ON Semiconductor SW1 SW4 4 Slide Switches 3 Position Miniature O...

Page 5: ...ed to minimize noise achieve high bandwidth and minimize crosstalk Layer Stack L1 Signal L2 Ground L3 VDD L4 Signal Figure 6 NB3N502 Evaluation Board Top Component Layer S1 X2 S0 CLK REF X1 CLK DUT 1 DUT 4 DUT 8 DUT 7 DUT 6 DUT 5 Figure 7 NB3N502 Evaluation Board SMA Ground Layer S1 X2 S0 CLK REF X1 CLK DUT 1 DUT 4 DUT 8 DUT 7 DUT 6 DUT 5 ...

Page 6: ...NB3N502DEVB http onsemi com 6 Figure 8 NB3N502 Evaluation Board Power Layer S1 X2 S0 CLK REF X1 CLK DUT 1 DUT 4 DUT 8 DUT 7 DUT 6 DUT 5 Figure 9 NB3N502 Evaluation Board Bottom Layer ...

Page 7: ...NB3N502DEVB http onsemi com 7 Figure 10 NB3N502 Evaluation Board Top Assembly Figure 11 NB3N502 Evaluation Board Bottom Assembly ...

Page 8: ...tems or any FDA Class 3 medical devices or medical devices with a similar or equivalent classification in a foreign jurisdiction or any devices intended for implantation in the human body Should you purchase or use the board for any such unintended or unauthorized application you shall indemnify and hold ON Semiconductor and its officers employees subsidiaries affiliates and distributors harmless ...

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