STV2246H STMicroelectronics, STV2246H Datasheet - Page 19

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

STV224X, STV228X, STV223X - MAIN FEATURES
2 MAIN FEATURES
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19/86
I²C Bus control (Read and Write modes).
PLL PIF demodulator, bus-controlled VCO
alignment.
Positive and negative IF modulation.
Digital AFC.
Tuner-delayed AGC output.
White and Black Spot cancellation.
SIF with QSS structure.
Intercarrier capability.
Built-in sound bandpass.
Multistandard PLL FM Demodulator (4.5, 5.5,
6.0, 6.5 MHz).
Audio FM Wide mode (BGDKI): Capable of
demodulating ±400 kHz overmodulated audio
signals, to be used in QSS architecture.
AM demodulator for France.
Sound subcarrier output for Stereo chassis: FM
and NICAM carriers.
Audio switch for external audio input, Mono
chassis.
Digital volume control.
Audio Mute.
Automatic Volume Levelling (AVL) on audio
signal (internal or external audio).
Digital buffer for SAW filter switching.
Video switch, three Composite Video
Broadcasting Signal (CVBS) inputs and two
CVBS outputs (which can be used to drive a
teletext decoder).
SVHS switch, Y input is combined with CVBS3
input.
Capability to output Y+C signal on second
CVBS output.
OSD RGB analog inputs, fast blanking
detection on fast blanking OSD pin, contrast
control capability.
Half-contrast control pin.
External analog RGB inputs with contrast and
saturation control (external RGB matrixed in
YUV). External analog YCrCb inputs can be
connected to the same inputs. In this case, the
sync signal must be sent to the CVBS input, and
External YCrCb mode must be selected through
the I²C bus.
Y,U,V inputs outputs: Y,U,V inputs/outputs for
the use of enhanced picture ICs.
Integrated chroma filters (trap, bandpass, bell)
with automatic alignment.
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Integrated luminance delay line.
Adjustable peaking on the luminance signal with
coring function.
Black Stretch circuit.
Automatic RGB peak regulation (APR) or RGB
peak limitation.
PAL/SECAM/NTSC color decoder with
automatic identification of standards.
Integrated chroma delay line.
Full integrated SECAM decoder.
Hue control, 2 selectable matrices in NTSC
mode.
Automatic Flesh Control circuit with two
selectable characteristics (normal and wide).
Automatic Color Control (ACC) overload circuit.
Chroma subcarrier output which could be used
to drive a comb filter circuit.
Automatic digital cut-off current loop with warm-
up detection circuit.
White point (drive) and cut-off point
adjustments.
Manual cut-off capability.
Beam current limiter control stage.
High-performance sync pulse separator.
Horizontal synchronization with two phase-
locked loops.
Integrated VCO, auto-calibration using the
chroma crystal reference frequency.
Automatic time constant selection for the first
PLL, three selectable time constants.
Video identification circuit (independent from
PLL1).
Noise detector circuit.
Vertical countdown circuit.
Automatic 50/60 Hz selection circuit.
Blanking and inserted cut-off pulses position
adapted to standard (50 or 60 Hz).
Long blanking mode capability in 60 Hz (same
blanking as with 50 Hz standard).
De-interlace capability.
Horizontal starting circuit with soft-start
capability.
Horizontal and vertical position adjustments,
vertical amplitude control voltage (combined
with chroma subcarrier output).
Oversize Blanking capability on OSD Fast
Blanking input.