SAA7113H/V2,557 Trident Microsystems, Inc., SAA7113H/V2,557 Datasheet - Page 65

• Manufacturer Part Number: SAA7113H/V2,557
• Manufacturer: Trident Microsystems, Inc.

Specifications of SAA7113H/V2,557

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Philips Semiconductors
9397 750 14232
Product data sheet
14.5 Indifferent detection of copy protected signals
Detection of copy protected signals according to the Macrovision scheme (pseudo sync
and AGC pulses) and thus the contents of the status information COPRO (I
bit, D1 of subaddress 1Fh) should be independent of the signal source.
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Issue: The detection of copy protected signals is not always stable with deteriorated
VCR signal sources or with certain VCRs or camcorders, especially with spurious
pulses that will be interpreted as pseudo syncs.
Impact: The internal detection circuitry might react too sensitive in a sense that a copy
protected signal is being detected that actually is not copy protected.
Work-around: Sometimes it will be advantageous to average the COPRO status
information (under control of the system microcontroller) for about one minute.
Rev. 02 — 9 May 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
9-bit video input processor
SAA7113H
2
C-bus status
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