TDA8822M Philips Semiconductors, TDA8822M Datasheet - Page 2

• Manufacturer Part Number: TDA8822M
• Description: Universal I2C-bus programmable RF modulator
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
APPLICATIONS
ORDERING INFORMATION
1997 Jan 08
TDA8822T
TDA8822M
5 V power supply
Video amplifier with clamp and white clip circuits
Programmable video modulation depth
FM sound modulator (4.5, 5.5, 6.0 and 6.5 MHz)
Programmable picture-to-sound ratio
Programmable deviation of the sound subcarrier
Input for modulated NICAM sound subcarrier or second
frequency modulated sound subcarrier
Asymmetrical or symmetrical RF output buffer
Symmetrical RF oscillator for UHF or VHF band
according to the application
One I
On-chip Phase-Locked Loop (PLL) frequency
synthesizer for the RF carrier
On-chip PLL frequency synthesizer for the sound carrier
On-chip power supply regulator
On-chip I
Pattern Signal Generator (TPSG) with LED driver
RF output switch-off during tuning.
Video recorders
Cable converters
Satellite receivers
Set top boxes.
Universal I
modulator
NUMBER
TYPE
2
C-bus programmable output port
2
C-bus and/or hardware controlled Test
SSOP24
NAME
SO24
2
C-bus programmable RF
plastic small outline package; 24 leads; body width 7.5 mm
plastic shrink small outline package; 24 leads; body width 5.3 mm
DESCRIPTION
2
GENERAL DESCRIPTION
The TDA8822 is a programmable modulator which
generates an RF TV channel from a baseband video
signal and a baseband audio signal in the event of
negative video and FM sound standards (B/G, I, D/K, M
and N standards).
Two PLL frequency-synthesizers set the picture carrier
frequency and the sound subcarrier frequency to the
required frequencies. These PLL frequency-synthesizers
are programmed via the I
The I
This makes the IC suitable for multistandard applications
without any adjustment into the application.
Additional features are provided like an input for the
NICAM or second FM carrier, a test pattern signal
generator with a LED driver and a general purpose
output port.
PACKAGE
Video modulation depth
Sound subcarrier modulation deviation
Picture-to-sound ratio.
2
C-bus controls these features:
2
C-bus.
Preliminary specification
TDA8822
SOT137-1
SOT340-1
VERSION