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NOVATECH INSTRUMENTS

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DDS9m Manual

INSTRUCTION MANUAL

Model DDS9m 170MHz 4-Channel Signal Generator Module

DDS9m

Table of Contents

 Section

Page

Contents

1.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  . . . . . . . . . . . . . . . . . . . . . . . . .  Description
2.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  . . . . . . . . . . . . . . . . . . . . . . .  Specifications
3.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  . . . . . . . . . . . . . . . . . Hardware Installation
4.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  . . . . . . . . . . . . . . . . . . . . . . . . . . .Operation
5.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 . . . . . . . . . . . . . . . . . . Theory of Operation
6.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 . . . . . . . . . . . . . . . . . . . . .Performance Test
7.0  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 . . . . . . . . . . . . . . . . . . . . . . . . . .Calibration
--. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 . . . . . . . . . . . . . . . . . . . . . . . . . . . Warranty

      

IN S T R U M E N T S

Содержание DDS9m

Страница 1: ...m 170MHz 4 Channel Signal Generator Module DDS9m Table of Contents Section Page Contents 1 0 2 Description 2 0 2 Specifications 3 0 2 Hardware Installation 4 0 7 Operation 5 0 10 Theory of Operation 6...

Страница 2: ...o 40oC Stable to an addi tional 1ppm per year 18 to 28oC Internal Clock 2 5 EXTERNAL CLOCK IN LEVEL 0 2 to 0 5Vrms Sine or Square Wave 50 FREQUENCY 10MHz to 125MHz with multiplier of 4 to NOVATECH INS...

Страница 3: ...knowledge of the operation of the Analog Devices AD9959 DDS generator is required Since all registers are accessible it is possible to set the board into a non functional mode requiring a reset Appli...

Страница 4: ...the phase is not cleared default See Section 4 for details Vn N Set voltage level of output n In default the amplitude is set to the maximum approximately 1Vpp 4dBm into 50 N can range from 0 off to 1...

Страница 5: ...10 0 15 3 78 7 85 1 3 10 3 35 4 22 9 85 1 0 90 3 35 5 5 08 85 1 0 20 3 35 3 3V DC RS232 EXT CLK BATT B U HIGH SPEED INTERFACE VTUNE SINE OUTs LVCMOS OUTs MCXs WIRE PTs 0 0 MCX 115 2kBaud Select 1 2 3...

Страница 6: ...V be placed between the DDS9m and your system You may use the 3 3 V on pin 2 of P4 for this power up to 50mA Pin Number Function Type Pin Number Function Type 1 Ground Power Supply Com mon PS 2 3 3 V...

Страница 7: ...the MCX outputs The square pad is the LVCMOS output and the round pad is ground If NOVATECH INSTRUMENTS you are not using the LVCMOS TTL output it is suggested that it be disabled by sending the A D...

Страница 8: ...ernal clock will be assuming Kp is unchanged NOVATECH INSTRUMENTS Fn 4 4209530 where n is your selected channel NOTE You must account for your clock frequency error and calculation roundoff when using...

Страница 9: ...0000 03FF 00000000 00000000 000301 80 BC0000 0000 6102 21 Description Line 1 05F5E100 frequency in 0 1Hz steps per LSB 0000 phase setting 03FF amplitude setting default is scaling off 0000 linear ram...

Страница 10: ...TER_RESET PWR_DWN_CTL CS are set by the on board microcomputer at power up and are not accessible on the high speed interface The table mode or table RAM is not accessible from the high speed interfac...

Страница 11: ...data sheet your value of Kp times your selected clock frequency must not be between 160MHz and 255MHz For the internal clock values of Kp from 5 to 9 should not be used You may also need to set the VC...

Страница 12: ...xternal clock source NOVATECH INSTRUMENTS 6 11 Return the DDS9m to normal operation and default values by sending the CLR command 6 12 This concludes the verification test of the DDS9m 7 0 CALIBRATION...

Страница 13: ...xecution of table 0000 two byte RAM address T0 and T1 must be paired with same address aabbccdd four bytes frequency hexadecimal MSB first 4 bytes 0 1Hz resolution on LSB eeff phase offset hexadecimal...

Страница 14: ...fitness for a particular purpose In no event shall seller be liable for collateral or consequential damages Some states do not allow limitations or exclusion of consequential damages so this limitatio...

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