Miranda ASD-211i/2D Скачать руководство пользователя страница 16 | Manualshive

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Miranda ASD-211i/2D Скачать руководство пользователя страница 16

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3.5 Automatic Input Calibration

The ASD-211i/2D can perform automatic input calibration reassuring properly
quantized 4:2:2 output signals. This is accomplished by monitoring the pixel value
within the region of the white bar of a color bars input signal. For a 100% color bars
input, the pixel value of white must be 940. If the ASD-211i/2D reads a value other
than 940, it will amplify or attenuate the input signal accordingly. It will repeat this
procedure until 940 is read. To perform input calibration follow these steps:

1. Install a 75% or 100% color bars signal to

NTSC/PAL IN

.

2. From the main menu, press SELECT three times to enter the CALIB menu.

During this time, the CALIB LED flashes.

3. Press UP(+) or DOWN(-) to begin calibration. The INPUT CALIB LED flashes

quickly as the ASD-211i/2D performs input calibration.

4. If the calibration is successful, the ASD-211i/2D automatically enters the SETUP

menu. To return to the main menu, press SELECT until there is no more flashing
LED. If the ASD-211i/2D failed to properly calibrate the input, the flashing rate
returns to normal and the menu remains in CALIB. Verify your installation and
make sure there is 75 ohm termination on the

NTSC/PAL IN

loop-through output.

Repeat step 3.

NOTE: The luminance and chrominance gains are reset to a gain of 1 after a
calibration execution. Also, the horizontal phase (position) is centered.

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Содержание ASD-211i/2D

Страница 1: ...0 101 Copyright 2002 MirandaTechnologies Inc Specifications may be subject to change Printed in Canada August 2002 ASD 211i 2D 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: ...and holidays excluded All warranty exchange or loaner parts or products shall be shipped to the Buyer with a packing list clearly describing the items and stating the date of shipment Repaired parts or products will be shipped to the Buyer with a similar packing list In the case of exchange the defective products or parts must be returned to Miranda within fifteen 15 days from receipt by the custo...

Страница 3: ... Part 1 European Standard Safety requirements for mains operated and related apparatus for household and similar general use ELECTROMAGNETIC COMPATIBILITY This equipment has been tested for verification of compliance with FCC Part 15 Subpart B class A requirements for Digital Devices This equipment complies with the requirements of EN55022 Class A Electromagnetic Emissions En 60555 2 3 Disturbance...

Страница 4: ...C Solo Frames 4 2 3 2 imaging Symphonie Frame 5 2 4 ASD 211i Electrical Installation 6 3 Operation 7 3 1 ASD 211i 2D User Interface 7 3 2 Input Status Monitoring 8 3 3 Input Detection Modes 9 3 3 1 Automatic Input Detection 9 3 3 2 Forced Input Selection 9 3 4 Decoding Filter 10 3 5 Automatic Input Calibration 11 3 6 Setup 12 3 7 Gain 13 3 7 1 Luminance Gain 13 3 7 2 Chrominance Gain 13 3 7 3 Over...

Страница 5: ...iv ...

Страница 6: ...N supported y Automatic input detection or forced input selection of all above formats y Automatic calibration of input composite signal 75 or 100 color bars Outputs y 4 serial digital 4 2 2 y Vertical ancillary data blanked decoded or bypassed to Y channel y Error detection and handling EDH supported Processing y 2X oversampling y 10 bit resolution y All digital signal processing y Selectable ada...

Страница 7: ...aussian low pass chroma filter selection Luma processing y Luma coring enable y Luma coring threshold Output processing y Output video rounded to 8 bits or 10 bits Vertical interval ancillary handling y Group 1 lines bypassed to Y channel or decoded y Group 2 lines bypassed to Y channel or blanked ...

Страница 8: ...anel by rotating the thumb screws counterclockwise Pull on the handles 2 Select an empty slot 3 Carefully place the ASD 211i 2D between a set of module guides and gently push the module towards the rear of the frame until the module s edge connector is secured to the backplane Pull lightly on the module verifying that it does not move 4 Replace the frame s front panel Make sure to rotate the thumb...

Страница 9: ... it does not move 3 Replace the frame s front panel 2 3 Rear Panel Label Connector labels have been shipped with the ASD 211i 2D These labels are to be installed on the frames rear panel in order to identify the module s external connectors 2 3 1 imaging Quartet Quartet C Solo Frames To install the Quartet Quartet C Solo label follow these steps while referring to Figure 2 1 1 Remove the screws as...

Страница 10: ...Remove the rear label mounting screws from the rear module 3 Carefully apply the label to the connectors making sure the label s text is read from top to bottom 4 Replace the screws making sure not to damage the label Figure 2 2 Symphonie rear panel label installation Rear module Label ASD 211i 2D NTSC PAL to 4 2 2 Adaptative Decoder REF IN 4 2 2 2 3 4 IN LOOP COMPOSITE OUT 1 ...

Страница 11: ...through Connect a NTSC M PAL B G H I PAL M or PAL N composite video source to NTSC PAL IN NTSC M signals must conform to the SMPTE 170M standard and PAL B G H I 625 50 PAL M 525 60 and PAL N 625 50 signals must conform to the ITU CCIR 624 4 standard If the loop through output is not used terminate it with a 75 ohm termination 4 2 2 OUT 1 2 3 and 4 serial digital video outputs The ASD 211i 2D provi...

Страница 12: ...ta selection are accessed and configured by the front panel push buttons SELECT UP and DOWN The flow chart of Figure 3 2 outlines the entire ASD 211i 2D menu path Figure 3 1 ASD 211i 2D user interface Figure 3 2 ASD 211i 2D menu structure Power up S SELECT Pushbutton TEST Pushbutton STD INPUT DECODING CALIB SETUP LUMA GAIN CHROMA GAIN S S S S S S S S Normal H PHASE SC PHASE S S NTSC PAL Overall Ga...

Страница 13: ...connected to NTSC PAL IN PAL M During automatic input detection this LED turns on to indicate the ASD 211i 2D has detected a PAL M composite signal connected to NTSC PAL IN PAL N During automatic input detection this LED turns on to indicate the ASD 211i 2D has detected a PAL N composite signal connected to NTSC PAL IN B W The B W LED located within the set of INPUT LEDs will turn on when the ASD ...

Страница 14: ... ASD 211i 2D remains configured with the format selected at all times regardless of the input signal s format If the input signal s format is other than that selected the ERR LED will turn on or it may flash This feature is handy when you are certain that the input format will not change To select the forced input for forced input detection follow these steps 1 From the main menu press SELECT to e...

Страница 15: ...election To select a decoding filter follow these steps 1 From the main menu press SELECT twice to enable the DECODING menu 2 Use the UP or DOWN push button to select the desired decoder Figures 3 3 and 3 4 describe the decoder selection sequence for the NTSC and PAL B G H I M N formats respectively 3 Press SELECT to store the selected decoder for the current format 4 To return to the main menu pr...

Страница 16: ...2 From the main menu press SELECT three times to enter the CALIB menu During this time the CALIB LED flashes 3 Press UP or DOWN to begin calibration The INPUT CALIB LED flashes quickly as the ASD 211i 2D performs input calibration 4 If the calibration is successful the ASD 211i 2D automatically enters the SETUP menu To return to the main menu press SELECT until there is no more flashing LED If the...

Страница 17: ...ssible to toggle between 0 and 7 5 IRE setup without having to increment or decrement the setup as described in steps 1 to 4 above Figure 3 5 provides a flow chart of the toggling feature Also Figure 3 5 assumes you have entered the SETUP menu Figure 3 5 Setup 0 7 5 toggle feature Current setup equal to 0 Current setup equal to 7 5 Current setup not equal to 0 nor 7 5 UP and DOWN pressed UP and DO...

Страница 18: ... six times to enter the CHROMA GAIN menu During this time the CHROMA LED flashes 2 Use the UP or DOWN push button to set the required gain For a quicker response keep the push button depressed 3 Press SELECT to store the chrominance gain for the current format 4 To return to the main menu press SELECT until there is no more flashing LED NOTE Press UP and DOWN simultaneously to return to unity chro...

Страница 19: ...l the SC LED flashes 2 Press UP or DOWN to set the required subcarrier phase 3 Press SELECT to store the subcarrier phase for the NTSC format and to return to the main menu NOTE Press UP and DOWN simultaneously for a 0 hue level SC PHASE is selected only during NTSC operation 3 10 V ANC Selection Incoming vertical ancillary data can be manipulated in four possible ways Refer to Table 3 2 for a des...

Страница 20: ...15 ...

Страница 21: ...ters are stored globally and apply to all four formats Refer to Table 4 1 Table 4 1 Stored parameters Configuration Parameters stored Global Input detection mode Chroma kill threshold Chroma coring enable Chroma coring threshold Gaussian low pass chroma filter selection Luma coring enable Luma coring threshold Output video rounded to 8 bits or 10 bits V ANC window length Group 1 lines decoded or b...

Страница 22: ...17 ...

Страница 23: ...ng Performance Sampling 2X oversampling with digital half band filter Quantization 10 bit Frequency response 0 1 dB up to 5 5 MHz Processing delay 4 67 µs for 2 LINE NOTCH BANDSPLIT and B W decoders 4 67 µs 1 line for 3 LINE decoder 2T K factor 0 5 Miscellaneous H ANC Blanked Storage temperature 40 to 85 C Operating environment 0 to 40 C non condensing Output timing drift 0 1 nsec C Humidity 10 to...

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