4-6

MIM-1 & MIM-2* Analog Input Modules

Power

Symbol

Description

Minimum

Typical

Maximum

Units

VA18P

positive analog supply voltage

17.50

18.00

20.00

volts

VA18M

negative analog supply voltage

-17.50

-18.00

-20.00

volts

VD5P

positive digital supply voltage

4.75

5.00

5.50

volts

IA18P

positive analog supply current

77(43.7)

81(46.0)

85(48.3)

milliamps

IA18M

negative analog supply current

72(41.6)

76(43.75)

80(46.0)

milliamps

ID5P

positive digital supply current

113(114)

123(124)

133(134)

milliamps

Performance

Symbol

Description

Minimum

Typical

Maximum

Units

THD+N

Total Harmonic Distortion + Noise

 

0.003(0.002)

0.007(0.006)

%

IMD

Intermodulation Distortion1

 

0.004

0.007

%

DIM

Dynamic Intermodulation Distortion2

 

0.003

0.006

%

 

Noise Floor3

 

110

107

dBu

 

Channel Crosstalk

 

-100

-80

dB

N

Resolution

 

20(24)

 

bits

 

Frequency Response

 

+0.01, - 0.1

+.02, -0.15

dB

 

Delay4

18 (38.7)

 

 

WST

MCLK+

Master Clock

12.283

12.288

12.292

MHz

WST+

Word Clock

47.98

48.000

48.02

kHz

 

Oversampling

 

64X(128X)

 

 

 

Stopband Attenuation

100(110)

 

 

dB

 

Maximum Input Level5

26

30

32

dBu

 

Interchannel Phase Deviation6

 

0.5

1.0

degrees

CMRR

Common Mode Rejection

 

52

40

dB

 

Gain Accuracy7

 

±0.05

±0.25

dB

Z

Input Impedance8

11000

12000

13500

ohms

in

Operating Temperature

50

75

100

°F

 

 

Operating Humidity

20

50

80

%

Miscellaneous

Overall Size:9

8.40” long by 2.55” wide by 1.50” high

Weight:

4.0 ounces

Synchronous Sampling:

Multiple cards can be synchronized via DPD signal on connector

Input connector:

3 Pin standard female XLR

Mating connector:

3 Pin standard male XLR

Internal connector:

48 pin standard female “F” size per DIN 41 612

XLR pinout:

Pin 1 – shield, Pin 2 – positive signal, Pin 3 – negative signal

Serial Interface:

Master or slave, selectable via SPI control I/F.

Clock Mode:

256 or 384 times sample rate, selectable via SPI control I/F.

Digital Power Down:

Selectable via SPI control I/F.

Analog Gain:

Selectable: 0, -20, -18, -16, -12, 2, 4, 8 dB.

Notes

(Unless otherwise specified measurements are at unity gain with +16 dBu signal.

1Unity gain, SMPTE 4:1, 60 Hz & 7 kHz sine waves.

2Unity gain, DIM30 4:1, 3.15 kHz SQ wave & 15 kHz sine wave, 30 kHz LPF.

3 Power spectral density.

4 Group Delay inherent in conversion process. WST=1/48 kHz 5 20 dB pad engaged.

6 Maximum levels are differential and balanced. Limit set by protection circuit. 7 Relative to unity gain, 1 kHz.

8 Electronically balanced, RF surpressed, differential impedance 20- 20kHz. 9 Maximum dimensions: dominated by panel size for height and width.

* MIM-2 differences parenthetically noted.

10 July 1998

Page 38
Image 38
Telex ISP-100 manual MIM-1 & MIM-2* Analog Input Modules, Power, Performance, Miscellaneous