Philips Semiconductors
Multistandard VIF-PLL and
FM-PLL demodulator
Preliminary specification
TDA9806
FEATURES
• 5 V supply voltage
• Gain controlled wide band VIF-amplifier (AC-coupled)
• True synchronous demodulation with active carrier
regeneration (very linear demodulation,
good intermodulation figures, reduced harmonics,
excellent pulse response)
• Separate video amplifier for sound trap buffering with
high video bandwidth
• VIF AGC detector for gain control, operating as peak
sync detector for B/G
• Tuner AGC with adjustable takeover point (TOP)
• AFC detector without extra reference circuit
• AC-coupled limiter amplifier for sound intercarrier signal
• Alignment-free FM-PLL demodulator with high linearity,
switchable de-emphasis for FM
• Stabilizer circuit for ripple rejection and to achieve
constant output signals.
GENERAL DESCRIPTION
The TDA9806 is an integrated circuit for multistandard
vision IF signal processing and FM sound demodulation in
TV and VCR sets.
ORDERING INFORMATION
TYPE NUMBER
TDA9806
NAME
SDIP32
PACKAGE
DESCRIPTION
plastic shrink dual in-line package; 32 leads (400 mil)
VERSION
SOT232-1
1995 Sep 05
2