Model VM8DAC

Specifications

8 Channel Low Noise

25oC and Rated Power Input

Digital to Analog Converter

2

25 Locust St., Haverhill, Massachusetts 01830

• Tel: 800/252-7074, 978/374-0761 • FAX:978/521-1839

e-mail: sales@freqdev.com

• Web Address: http://www.freqdev.com

Module Size/Dimensions

1. Standard 6U VME, single slot module

9.17” X 6.3”, (233mm X 160 mm)

2. Weight

~ 1 lb.

Connectors

3. Input clock connector

Lemo EPG.OB.302.HLN

4. Analog output connector

Male DB25

5. Matching output connector

Female DB25

External Clock Input

6. Configuration

Differential, TTL compatible

7. Isolation

Transformer isolated

8. Frequency

2

Analog Output

9. Number of channels per board

8

10. Analog output configuration

Differential

11. Minimum output load

500 ohm

12. Maximum output voltage

+/- 10V into 10 k

Ω

13. Output amplifier 3 dB bandwidth

>50KHz

14. Output impedance

50

Ω per leg

15. Anti-image filter

None

16. Inter-channel crosstalk

< -90dB

(frequencies less than 50KHz)

DAC Specifications

17. Number of bits

24 bits

18. Binary number format

Binary 2’s complement

19. Sampling rate

16,384, 8192, 4096, 2048 samples per second

20. Bipolar zero error

±2% F.S. maximum

21. Bipolar zero error drift

± 5 ppm of FS/ °C

22. Glitch energy

< 5nV-sec

23. Output-referred noise

(40 Hz to 8192 Hz with FS 1000 Hz sine wave)

24. Amplitude match and accuracy

± 0.1 dB

25. Harmonic spikes

<-100 dB

(referred to a full scale output signal )

26. Output settling time to 1%

< 5 microseconds

(From output clock edge)

Power Requirements

27. From the + 5V VME backplane supply

1.0 A Max.

28. From the +/- 12V VME backplane supply

1.0 A

VME Interface

29. Interface configuration

A32/D32 VME Data Transfer Bus (DTB) Slave

30. Address modifier lines decoding

Full decode (0x09, 0x0A, 0x0D, and 0x0E valid)

31. Data word size

Long word (Quad Byte) and aligned word (Double Byte)

32. Bus cycle compatibility

AO, RMW, bus cycles address pipelining

33. Addressing modes

A32 (Extended) addressing only

Environmental

34. Operating Temperature range

0oC to +70oC

35. Storage Temperature range

-25oC to +85oC

36. Humidity

0-95% non-condensing

We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements, recommendations or

suggestions herein in conjunction with our conditions of sale, which apply, to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or suggestions, nor do we intend

them as a recommendation for any use, which would infringe any patent or copyright.

VM8DAC 022004