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BT854KPF, BT855KPH, BT856

Table of contents:
Info of BT854KPF
Info of BT855KPH
Info of BT856

BT854KPF, BT855KPH, BT856 Selling Leads, Datasheet

MFG:N/A Package Cooled:N/A D/C:N/A

BT854KPF, BT855KPH, BT856 Datasheet download

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Part Number: BT854KPF

MFG: N/A

Package Cooled: N/A

D/C: N/A

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BT856 General Description

The Bt856/7 is designed specifically for video systems requiring the generation of 525-line (NTSC/PALM) or 625-line (PALB, D, G, H, I, N, N-Argentina) composite or Y/C (S-video) signals.

The Bt856 and Bt857 are functionally identical, with the exception that Bt857 can output the Macrovision anticopy algorithm.

Horizontal sync (HSYNC*) and vertical sync (VSYNC*) may be configured as inputs (slave mode) or outputs (master mode). BLANK* is an input and may be externally controlled.

24-bit linear or gamma-corrected RGB data or 4:2:2 YCrCb data may be input. The rise and fall times of sync, the burst envelope, and closed caption data are internally controlled.

Analog luminance (Y) and chrominance (C) information is available on the Y and C outputs for interfacing to S-video equipment. The composite analog video signal is output simultaneously onto two analog outputs. This allows one output to provide baseband composite video and another output to drive an RF modulator. Analog RGB is available to support the European SCART/PeriTV interf

BT856 Maximum Ratings

Parameter	Symbol	Min.	Typ	Max	Unit
VAA (measured to GND)				7.0	V
Voltage on Any Signal Pin (Note 1)		GND 0.5		VAA + 0.5	V
Analog Output Short Circuit Duration to Any Power Supply or Common	ISC		Indefinite
Ambient Operating Temperature	TA	-55		+125
Storage Temperature	TS	-65		+150
Junction Temperature	TJ			+150
Vapor Phase Soldering (1 Minute)	TVSOL			220

Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a
stress rating only, and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: This device employs high-impedance CMOS devices on all signal pins. It should be handled as an ESD-ensitive device. Voltage on any signal pin that exceeds the power supply or ground voltage by more than 0.5 V can cause destructive latchup.

BT856 Features

• RGB or YCrCb Inputs, Selectable on a Pixel-by-Pixel Basis
• NTSC/PAL/PALM/PALN (Argentina) Composite Video Output
• S-Video/RGB Outputs Supported
• CCIR 601 or Square Pixel Operation
• 2x Oversampling
• 9-bit DACs
• Master or Slave Video Timing
• Noninterlaced Operation
• Macrovision Support (Bt857 Only)
• Closed Captioning Encoding
• Power-Down Mode
• SCART Support (RGB Outputs)
• I²C Interface
• On-Board Voltage Reference
• Internal Color Bar Generator
• 68-pin PLCC Package

BT856 Typical Application

• Digital Set Top Box
• Direct Broadcast Satellite (DBS)
• Digital Video Disk (DVD)
• Digital VCR
• VideoCD

BT856 Connection Diagram

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