Philips Semiconductors
I2C-bus controlled BTSC stereo/SAP
decoder and audio processor
Product specification
TDA9855
FEATURES
• Quasi alignment-free BTSC stereo decoder due to
automatic adjustment of channel separation via I2C-bus
• High integration level with automatically tuned
integrated filters
• Input level adjustment I2C-bus controlled
• Alignment-free SAP processing
• dbx noise reduction circuit
• I2C-bus transceiver.
Audio processor
• Selector for internal and external signals (line in)
• Automatic volume level control
• Subwoofer or surround output with separate volume
control
• Volume control
• Special loudness characteristic automatically controlled
in combination with volume setting
• Bass and treble control
• Audio signal zero-crossing detection between any
volume step switching
• Mute control at audio signal zero-crossing.
GENERAL DESCRIPTION
The TDA9855 is a bipolar-integrated BTSC stereo/SAP
decoder with hi-fi audio processor (I2C-bus controlled) for
application in TV sets.
ORDERING INFORMATION
TYPE NUMBER
TDA9855
TDA9855WP
NAME
SDIP52
PLCC68
PACKAGE
DESCRIPTION
plastic shrink dual in-line package; 52 leads (600 mil)
plastic leaded chip carrier; 68 leads
VERSION
SOT247-1
SOT188-2
LICENSE INFORMATION
A license is required for the use of this product. For further information, please contact
COMPANY
THAT Corporation
BRANCH
Licensing Operations
Tokyo Office
ADDRESS
734 Forest St.
Marlborough, MA 01752
USA
Tel.: (508) 229-2500
Fax: (508) 229-2590
405 Palm House, 1-20-2 Honmachi
Shibuya-ku, Tokyo 151
Japan
Tel.: (03) 3378-0915
Fax: (03) 3374-5191
1997 Nov 04
2