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STV6412A Dataheets PDF



Part Number STV6412A
Manufacturers ST Microelectronics
Logo ST Microelectronics
Description AUDIO/VIDEO SWITCH MATRIX
Datasheet STV6412A DatasheetSTV6412A Datasheet (PDF)

STV6412A AUDIO/VIDEO SWITCH MATRIX FEATURES s s s s I²C Bus Control Standby Mode with Interrupt Signal Output Video Section – 4 CVBS Inputs, 3 CVBS Outputs (one with Selectable Chroma Trap Filter) – 3 Y/C Inputs, 2 Y/C Outputs – 6 dB Gain on all CVBS/Y and C Outputs – Integrated 150 Ω Buffers – 1 Y/C Adder – 2 RGB/FB Inputs, 1 Tri-state RGB/FB Output with 6 dB Adjustable Gain (from +3dB to +9dB) – Video Muting on all Outputs – 2 Slow Blanking Inputs/Outputs – Sync Bottom Clamp on all CVBS/Yand.

  STV6412A   STV6412A



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STV6412A AUDIO/VIDEO SWITCH MATRIX FEATURES s s s s I²C Bus Control Standby Mode with Interrupt Signal Output Video Section – 4 CVBS Inputs, 3 CVBS Outputs (one with Selectable Chroma Trap Filter) – 3 Y/C Inputs, 2 Y/C Outputs – 6 dB Gain on all CVBS/Y and C Outputs – Integrated 150 Ω Buffers – 1 Y/C Adder – 2 RGB/FB Inputs, 1 Tri-state RGB/FB Output with 6 dB Adjustable Gain (from +3dB to +9dB) – Video Muting on all Outputs – 2 Slow Blanking Inputs/Outputs – Sync Bottom Clamp on all CVBS/Yand RGB Inputs, Average Clamp on C Inputs – Bandwidth: 15 MHz – Crosstalk: 50 dB Minimum Audio Section – 4 Stereo Inputs, 3 Stereo Outputs – 1 Mono-Sound Output – Stereo-to-Mono Sound Capability – 0/6/9 dB Selectable Gain on one Stereo Input – Full Range Volume Control with Soft Control – Audio Muting on all Outputs TQFP64 (14 x 14 x 1.40 mm) (Thin Full Plastic Quad Flat Pack) ORDER CODE: STV6412ADT DESCRIPTION The STV6412A is a highly integrated I²C bus-controlled audio and video switch matrix, optimized for use in digital set-top box applications. It provides all the audio and video routings required in a full two SCART set-top box design. September 2003 1/24 1 Table of Contents 1 GENERAL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 PIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.1 Thermal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.2 Latch Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 RECOMMENDED OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 AUDIO SECTION CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 VIDEO SECTION CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5 CHROMA SECTION CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.6 BLANKING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.7 I²C BUS CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3 I C BUS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.1 I2C BUS ADDRESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.2 POWER-ON RESET — BUS REGISTER INITIAL CONDITIONS . . . . . . . . . . . . ..


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