BCM35421 Broadcom Corp., BCM35421 Datasheet - Page 2

• Manufacturer Part Number: BCM35421
• Description: Frc Panel Processor
• Manufacturer: Broadcom Corp.

The Broadcom BCM35421 panel processor is an advanced motion-
compensated Frame Rate Converter for use in LCD TVs and panels. It is
designed to improve the watchability and total end-user experience when
viewing TV programs and movies on an LCD TV. The BCM35421
contains Broadcom’s high performance mediaDSP engine that processes
innovative FRC algorithms to achieve excellent picture quality. It also
enables many cost saving features allowing TV manufacturers to reduce
overall system BOM costs.
The BCM35421 implements special algorithms that improve LCD TV
picture quality by reducing LCD motion blur and film judder. The
BCM35421 accepts 50/60 Hz pixel input from an LCD TV’s image-
processor (DTV SoC). The BCM35421 creates interpolated frames
between two input frames to essentially double the amount of video data,
thereby, creating a 100/120 Hz frame rate output capable of driving a 100/
120 Hz LCD TV panel.
The BCM35421 supports Full HD 1080p input and output video
resolutions on both of its LVDS input and output ports. The dual LVDS
input ports accept both film (movie) and video source formats. In the case
of film source data, the BCM35421 automatically detects the film
cadence, and then performs a reverse pull-down to extract the original
24/25 Hz frames. Spread-spectrum LVDS input signals are supported, as
specified.
The BCM35421’s quad LVDS output ports connect directly to the 1080p
LVDS input ports of a 100/120 Hz LCD panel. The BCM35421 supports
Mode 1 and Mode 2 panel data format types and spread-spectrum LVDS
outputs. Optionally, the BCM35421 supports a faster, specially formatted
high-speed LVDS output interface that permits 1 or 2 output frames
(current and previous) to be output in one 100/120 Hz frame window. This
special Dual-frame mode allows manufacturers to reduce system BOM
cost by eliminating the need for external LCD Panel Timing Controller
Broadcom
mediaDSP
certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property
of their respective owners.
BROADCOM CORPORATION
5300 California Avenue
Irvine, California 92617
© 2009 by BROADCOM CORPORATION. All rights reserved.
35421-PB01-R
®
®
, the pulse logo, Connecting everything
are among the trademarks of Broadcom Corporation and/or its affiliates in the United States,
04/29/09
BSC Master Interface
BSC Slave Interface
EEPROM Interface
50/60 Hz LVDS
Pixel Input
GPIO
®
®
, the Connecting everything logo, and
Peripheral
Controller
Host Controller Unit
Receiver
LVDS
Unit
BCM35421 Block Diagram
O V E R V I E W
Memory Controller
SDRAM Interface
BCM35421
Manager
Stream
(TCON) memories and reducing interface costs between the BCM35421
FRC component and the TCON.
The BCM35421 only requires a single external RAM component to
further reduce system BOM costs. It operates with a single 64 MB, 32-bit
wide GDDR3 component.
SPI flash memory is supported for booting and non-volatile code storage.
Most applications operate with a single low-cost 1 MB SPI flash
component. Up to 2 MB of flash can be supported.
The BCM35421 contains many general-purpose I/O signals, supports an
I
40 MHz crystal. It is packaged in a 23 mm x 23 mm, 548-ball, flip chip
BGA.
The BCM35421 is very programmable and flexible. It is fully firmware
upgradeable and can be customized to meet customer-specific
requirements and to implement unique customer algorithms. The
BCM35421 allows manufacturers to take advantage of continual FRC
algorithm and firmware improvements as Broadcom’s leading-edge FRC
technology continues to increase picture quality.
An Application Programming Interface (API) is supported over the
BCM35421’s I
select from several FRC modes and picture quality settings, such as
choosing a specific FRC strength or a special PC mode (frame repeat) for
gaming applications. The APIs also allow custom tuning for different TV
models or user-selected modes based on a manufacturer’s preferences.
The LCD Tuning Environment (LTE) GUI, a PC-based software tuning
and evaluation tool available with the BCM35421, can be used for
customer picture quality tuning, testing, debugging, evaluations, and
demonstrations.
2
C-compatible Broadcom Serial Control (BSC) interface, and uses a
mediaDSP Engine
2
C-compatible interface. The APIs allow manufacturers to
®
Transmitter
LVDS
100/120 Hz
LVDS/High-speed LVDS
Pixel Output
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com