DDS 25MHz GENERATOR MODULE FCALLBOX

Description

This small module is a Function Generator DDS based on a AD5932 with the features following :

- Sine and Triangle output up to 25MHz, triangle, amplitude 20Vpkpk, DC offset -10V to +10V on HE10 connector 2 points.

- Square output 0-5V on HE10 connector 2 points.

- Sync output 0-5V on HE10 connector 2 points.

- Connection with the host by connector right angle HE10 2x19 compatible with FCALLBOX backplane

- Programmation by SPI for the AD5392 and by I2Cfor the DAC which set the DC offset of the output Sinus/Triangle.

- Power supply 5V only (+12V, -12V, -5V generated on board).

Summary

• Block diagram

• Schematic

• BOM

• PCB

• Assembly

BLOCK DIAGRAM

Schematic

Le schéma de la carte :

Download here the schematic

BOM

Top view C26,C27,C28,C29,C46,C47,C13,C14,C15,C30,C37,C38,C16,C17,C18,C19 Capacitor 10uF 16V 10% X5R 0603 All brand C12 Capacitor 22pF 50V 10% COG 0603 All brand C39 Capacitor 100pF 50V 10% COG 0603 All brand C45 Capacitor 1uF 10V 10% X5R 0603 All brand C43,C44 Capacitor 2.2uF 10V 10% X5R 0603 All brand C1,C2,C3,C31,C32,C4,C5,C6,C33,C7,C8,C34,C20,C21,C22,C23,C24,C25,C35,C36,C10 Capacitor 100nF 50V 10% X7R 0603 All brand C11,C9,C40 Capacitor 2.2nF 50V 10% X7R 0603 All brand C41,C42 Capacitor 220uF 25V radial Panasonic EEUFM1E221 or equivalent D2 Diode Schottky 1A 20V SOD123 All brand, eg 1N5819HW D1 Diode Schottky 1A 20V SOD323 or SOD123 All brand, ex 1N5819HW R1,R2,R3,R14 Resistor 1KR 5% 0603 All brand R33,R36,R37,R47 Resistor 0R 5% 0603 All brand Not mounted : R31,R32,R34,R35 Resistor 0R 5% 0603 All brand R10,R11 Resistor 4K7 5% 0603 All brand R4,R27 Resistor 10K 5% 0603 All brand R23,R24,R30 Resistor 30K 5% 0603 All brand R5,R28 Resistor 470R 5% 0603 All brand R9, Resistor 100R 5% 0603 All brand R13 Resistor 24R 5% 0603 All brand R29 Resistor 100KR 5% 0603 All brand R25 Resistor 56R 5% 0603 All brand R26 Resistor 560R 5% 0603 All brand R21 Resistor 59KR 1% 0603 All brand R22 Resistor 26.1R 1% 0603 All brand R16,R17,R18,R19,R7,R6, Resistor 100KR 1% 0603 All brand R8 NE Resistor 100KR 1% 0603 All brand R15 Resistor 68KR 1% 0603 All brand R20 Resistor 510KR 1% 0603 All brand R12,R38 Resistor 50R 1% 2512 All brand L1,L4,L5,L6,L7,L8 inductor 22uH 140mA 1210 EPCOS B82422A1223K10 or equivalent L3 inductor 47uH 0.8A 7x7 SUMIDA CDRH6D28NP-220NC or equivalent L2 inductor 22uH 1.2A 7x7 SUMIDA CDRH6D28NP-470NC or equivalent U14 IC 74F04 DIL14 All brand U13 IC LM2776 SOT23-6 Texas Instruments /LM2776 U5 IC LDO 3.3V 500mA SOT23-5 SPX3819M5-L-3-3 ou MIC5504-3.3YM5-TR U1 DDS generator AD5932s Analog Device AD5932YRUZ U4 DAC AD5627 12 bits Analog Device AD5627RBRMZ-1 U3 PGA VCA810 VCA810ID / Texas Instruments U8,U12 AOP TL072 TL072 All brand U11 MP3209 boost converter SOT23-5 MPS MP3209DJ U6 AOP 60MHz 250mA LT1206 Linear technology LT1206CN8#PBF U7 DC/DC inverter MAX765 SO8 MAX764CSA Maxim Integrated U2 Oscillator 50MHz 3.3V ACHL-50.000MHZ-EK ABRACON or equivalent J2 Connector male right angle 2x19 pitch 2.54mm All brand

PCB

The PCB F00113 is 50x100mm .

Download here the manufacturing files

Assembly

Do not populate component in blue color on the picture.

Top view

Download here the top view with the ref des only in PDF format     
Download here the top view with the values of the components in PDF format     

Picture