Wavetek 39A Manuals

MAINTENANCE MANUAL Model 39A 40MHz Arbitrary Waveform Generator October 2005 - Issue 1 This document contains information proprietary to Wavetek and is provided solely for instrument operation and maintenance. The information in this document may not be duplicated in any manner without the prior approval in writing from Wavetek. Wavetek-Datron Test and Measurement Division Hurricane Way Norwich Norfolk NR6 6JB, U.K. Tel: 44 1603 256600 Fax: 44 1603 256688 Table of Contents Specifications 2 Safety 10 Installation 11 General 12 Circuit Descriptions 13 Calibration 18 Parts List 21 Component Layouts 29 Circuit Diagrams 31 1 Specifications Note: This specification covers the whole series which includes 2- and 4- channel instruments; the interchannel specifications only apply to the multi-channel instruments. Specifications apply at 18−28ºC after 30 minutes warm−up, at maximum output into 50Ω WAVEFORMS Standard Waveforms Sine, square, triangle, DC, positive ramp, negative ramp, sin(x)/x, pulse, pulse train, cosine, haversine and havercosine. Sine, Cosine, Haversine, Havercosine Range: 0.1mHz to 16 MHz Resolution: 0.1mHz or 7 digits Accuracy: 10 ppm for 1 year Temperature Stability: Typically <1 ppm/ºC. Output Level: 2.5mV to 10Vp−p into 50Ω Harmonic Distortion: <0.1% THD to 100kHz; <–65dBc to 20kHz <–50dBc to 1MHz, <−35dBc to 10MHz <−30dBc to 16MHz Non−harmonic Spurii: <–65dBc to 1MHz, <–65dBc + 6dB/octave 1MHz to 16MHz Square Range: 1mHz to 16MHz Resolution: 1mHz (4 digits) Accuracy: ± 1 digit of setting Output Level: 2.5mV to 10Vp−p into 50Ω Rise and Fall Times: <25ns Triangle Range: 0.1mHz to 100kHz Resolution: 0.1mHz or 7 digits Accuracy: 10 ppm for 1 year Output Level: 2.5mV to 10Vp−p into 50Ω Linearity Error: <0.1% to 30 kHz Ramps and Sin(x)/x Range: 0.1mHz to 100kHz Resolution: 0.1mHz (7 digits) Accuracy: 10 ppm for 1 year Output Level: 2.5mV to 10Vp−p into 50Ω Linearity Error: <0.1% to 30 kHz 2 Pulse and Pulse Train Output Level: 2.5mV to 10Vp−p into 50Ω Rise and Fall Times: <25ns Period: Range: 100ns to 100s Resolution: 4-digit Accuracy: ±1 digit of setting Delay: Range: −99.99s to +99.99s Resolution: 0.002% of period or 25ns, whichever is greater Width: Range: 25ns to 99.99s Resolution: 0.002% of period or 25ns, whichever is greater Note that the pulse width and absolute value of the delay may not exceed the pulse period at any time. Pulse trains of up to 10 pulses may be specified, each pulse having independently defined width, delay and level. The baseline voltage is separately defined and the sequence repetition rate is set by the pulse train period. Arbitrary Up to 100 user defined waveforms may be stored in the 256K point non−volatile RAM. Waveforms can be defined by front panel editing controls or by downloading of waveform data via RS232 or GPIB. Waveform Memory Size: 64k points per channel. Maximum waveform size is 64k points, minimum waveform size is 4 points Vertical Resolution: 12 bits Sample Clock Range: 100mHz to 40MHz Resolution: 4 digits Accuracy: ± 1 digit of setting Sequence Up to 16 waveforms may be linked. Each waveform can have a loop count of up to 32,768. A sequence of waveforms can be looped up to 1,048,575 times or run continuously. Output Filter Selectable between 16MHz Elliptic, 10MHz Elliptic, 10MHz Bessel or none. 3