Datasheet

TVP5158, TVP5157, TVP5156
www.ti.com SLES243G –JULY 2009–REVISED APRIL 2013
1.2 Applications
• Security and surveillance digital video recorders or servers and PCI products
• Automotive infotainment video hub
• Large format video wall displays
• Game systems
1.3 Description
The TVP5158, TVP5157, and TVP5156 devices are 4-channel high-quality NTSC/PAL video decoders
that digitize and decode all popular base-band analog video formats into digital video output. Each
channel of this decoder includes 10-bit 27-MSPS A/D converter (ADC). Preceding each ADC in the
device, the corresponding analog channel contains an analog circuit that clamps the input to a reference
voltage and applies the gain.
Composite input signal is sampled at 2x the ITU-R BT.601 clock frequency, line-locked alignment, and is
then decimated to the 1x pixel rate. CVBS decoding uses five-line adaptive comb filtering for both the
luma and chroma data paths to reduce both cross-luma and cross-chroma artifacts. A chroma trap filter is
also available. On CVBS inputs, the user can control video characteristics such as contrast, brightness,
saturation, and hue via an I
2
C host port interface. Furthermore, luma peaking (sharpness) with
programmable gain is included.
All four channels are independently controllable. These decoders share a single clock input for all
channels and for all supported standards.
TVP5158 provides a glueless audio and video interface to TI DaVinci™ video processors. Video output
ports support 8-bit ITU-R BT.656 and 16-bit 4:2:2 YCbCr with embedded synchronization. TVP5158
supports multiplexed pixel-interleaved and line-interleaved mode video outputs with metadata insertion.
TVP5158 and TVP5157 integrate 4-Ch audio ADCs to reduce the BOM cost for surveillance market.
Multiple TVP5158 devices can be cascade connected to support up to 8-Ch Video or 16-Ch audio
processing.
Noise reduction and auto contrast functions improve the video quality under low light condition which is
very critical for surveillance products.
The TVP5158, TVP5157, and TVP5156 can be programmed by using a single I
2
C serial interface. I
2
C
commands can be sent to one or more decoder cores simultaneously, reducing the amount of I
2
C activity
necessary to configure each core. This is especially useful for fast downloading modified firmware to the
decoder cores.
TVP5158, TVP5157, and TVP5156 use 1.1-V, 1.8-V, and 3.3-V power supplies for the analog/digital core
and I/O. These devices are available in a 128-pin TQFP package.
Table 1-1. Device Options
Device Name 4-Ch Audio ADC Line-Interleaved Modes
TVP5156 No No
TVP5157 Yes No
TVP5158 Yes Yes
1.4 Related Products
• TVP5154A
• TVP5150AM1
• TVP5146M2
• TVP5147M1
Copyright © 2009–2013, Texas Instruments Incorporated Introduction 9
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Product Folder Links: TVP5158 TVP5157 TVP5156