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Guide to Installation and Operation 

DAC-191p  |  

 
1.0  DAC-191p 
 

1.1   Introduction 

 
The DAC-191p is the industry’s smallest 4:2:2 serial 
digital video to component analog video DAC. This 
product automatically detects 525-line and 625-line 4:2:2 
signals conforming to the SMPTE 259M-C standard and 
provides BETA/EBU or GBR output signals. An internal 
test pattern generator provides a color bars test signal 
for both BETA/EBU and GBR outputs. In addition, this 
feature-packed unit delivers ease-of-use, a simplified 
design, easy installation and operation. 
 

 

Figure 1: 

DAC-191p functional block diagram

 

 

1.2   Features 

 

  Automatic 525-line and 625-line format input 

detection 

  Output standard selection: BETA/EBU or GBR with or 

without setup 

  Color bars generator 

  Bi-color LED showing error status on input 4:2:2 

signal 

  Very small packaging with aluminum extruded body 

 

Serial to

parallel

DAC

4:2:2 IN

B/B-Y

G/Y

R/R-Y

COMPONENT OUT

Содержание DAC-191p

Страница 1: ...00 Copyright 2007 Miranda Technologies Inc Specifications may be subject to change Printed in Canada March 2007 DAC 191p picoLink Series Miranda Technologies inc 3499 Douglas B Floreani St Laurent Québec Canada H4S 1Y6 Tel 514 333 1772 Fax 514 333 9828 www miranda com ...

Страница 2: ...ion reception This equipment has been tested and complies with the limits in accordance with the specifications in FCC Part 15 Subpart B CE EN50081 1 1992 CE EN50082 1 1992 CONTACT MIRANDA For technical assistance please contact the Miranda Technical Support centre nearest you Americas Telephone 1 800 224 7882 e mail techsupp miranda com Asia Telephone 81 3 5730 2987 e mail asiatech miranda com Eu...

Страница 3: ... 191p CONTENTS page 1 0 DAC 191p 1 1 1 Introduction 1 1 2 Features 1 2 0 Physical Layout 2 3 0 Installation 3 3 1 Power Supply 3 3 2 4 2 2 Input 4 3 3 CAV Outputs 4 4 0 Operation 5 4 1 Switch Settings 5 4 2 Status LED 6 5 0 Specifications 7 ...

Страница 4: ...Guide to Installation and Operation DAC 191p ...

Страница 5: ...rn generator provides a color bars test signal for both BETA EBU and GBR outputs In addition this feature packed unit delivers ease of use a simplified design easy installation and operation Figure 1 DAC 191p functional block diagram 1 2 Features Automatic 525 line and 625 line format input detection Output standard selection BETA EBU or GBR with or without setup Color bars generator Bi color LED ...

Страница 6: ... 2 2 input BNC and the component analog output signals are provided by the CAV outputs Error status is provided by the status LED and mode settings are configured by two 3 position slide switches Finally the power source is connected to the power connector 4 2 2 input Power connector CAV outputs Status LED 3 position slide switches Figure 2 Physical layout of the DAC 191p ...

Страница 7: ... V operation respectively are used to power the DAC 191p Each power supply provides a regulated 5 VDC 750 mA power source The DAC 191p employs a mini XLR 3 connector for its power needs Figure 3 provides a detailed pinout of the male connector 1 3 2 male connector facing Pin 1 Shield Pin 2 GND Pin 3 5 VDC Figure 3 Power connector pinout ...

Страница 8: ...ist of green blue and red color coded male BNC connectors Male connectors are provided so as to connect the DAC 191p directly to monitoring equipment Available CAV output standards are BETA EBU BETA EBU operation provides Y B Y R Y signals on the green blue and red BNCs respectively BETA 60Hz EBU 50Hz GBR The GBR format can be with or without setup Refer to Section 4 0 Operation in order to select...

Страница 9: ...put CAV standard switch SW1 BETA For BETA EBU CAV outputs set SW1 to this position The Y B Y R Y outputs are provided by the green blue and red connectors respectively GBR 7 5 With 525 line inputs set SW1 to this position for GBR outputs with 7 5 IRE setup There is no setup for 625 line GBR outputs GBR For GBR outputs with 0 IRE setup set SW1 to this position Normal and test pattern switch SW2 Nor...

Страница 10: ...t cable is provided to identify any input errors and the selection of the test pattern The following lists all possible situations Green Indicates the DAC 191p is powered and has detected a valid 4 2 2 serial digital signal Red Indicates an error with the input signal has been detected or simply there is no input signal installed Yellow The test pattern is selected If an input signal error is dete...

Страница 11: ...eturn loss 35 dB up to 5 MHz Connector 3 captive cables with 75 Ω male BNCs Processing performance Signal path 10 bits Quantization 12 bits Sampling 216 MHz 16X oversampling Freq response 0 5 dB to 5 MHz Processing delay 3 9 µsec Electrical Voltage requirement 5 VDC Power consumption 3 W Power connector Mini XLR 3 Mechanical Overall size 102 mm x 25 mm x 18 mm 4 x 1 x 0 7 Power cable length 127 mm...

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