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KODENSHI KOREA

KKA8842 Datasheet Preview

KKA8842 Datasheet

I2C BUS CONTROLLED SINGLE CHIP TV-RECEIVER

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TECHNICAL DATA
I2C BUS CONTROLLED SINGLE CHIP TV-RECEIVER
The KKA 8842 is I2C-bus controlled single chip TV processor which is intended to be applied in PAL,
NTSC, PAL/NTSC and multi-standard television receivers.
FEATURES
The following features are available:
Multi-standard vision IF circuit with an alignment-free PLL
demodulator without external components
Alignment-free multi-standard FM sound demodulator (4.5 MHz
to 6.5 MHz)
Audio switch
Automatic Volume Limiting
Flexible source selection with CVBS switch and Y(CVBS)/C input
so that a comb filter can be applied
Integrated chrominance trap circuit
Integrated luminance delay line
Asymmetrical peaking in the luminance channel with a
(defeatable) noise coring function
PAL/SECAM/NTSC decoder
Base-band delay line for PAL and SECAM or chroma comb filter
for NTSC
Black stretching of non-standard CVBS or luminance signals
Integrated chroma band-pass filter with switchable centre
frequency
Dynamic skin tone control circuit
Blue stretch circuit which offsets colours near white towards blue
RGB control circuit with "Continuous Cathode Calibration" and
white point adjustment
Possibility to insert a "blue back" option when no video signal is
available
Horizontal synchronization with two control loops and alignment-
free horizontal oscillator
Vertical count-down circuit
Vertical driver optimised for DC-coupled vertical output stages
I2C-bus control of various functions
1




KODENSHI KOREA

KKA8842 Datasheet Preview

KKA8842 Datasheet

I2C BUS CONTROLLED SINGLE CHIP TV-RECEIVER

No Preview Available !

www.DataSheet4U.com
KKA8842
QUICK REFERENCE DATA
SYMBOL
Supply
VP
IP
Input voltages
ViVIFrms)
ViSIF(rms)
ViAUDIO(rms)
ViCVBS(p-p)
ViCHROMA(p-
p)
ViRGB(p-p)
Output signals
VoCVBS(p-p)
IoTUNER
VoVIDSW(p-p)
VoB-Y(p-p)
VoR-Y(p-p)
VoY(p-p)
VoRGB(p-p)
IoHOR
IoVERT
PARAMETER
supply voltage
supply current
video IF amplifier sensitivity (RMS value)
sound IF amplifier sensitivity (RMS value)
external audio input (RMS value)
external CVBS/Y input (peak-to-peak
value)
external chroma input voltage (burst
amplitude) (peak-to-peak value)
RGB inputs (peak-to-peak value)
demodulated CVBS output (peak-to-peak
value)
tuner AGC output current range
CVBS1/CVBS2 output voltage of video
switch (peak-to-peak value)
-(R-Y) output/input voltage (peak-to-peak
value)
-(B-Y) output/input voltage (peak-to-peak
value)
Y output/input voltage (peak-to-peak
value)
RGB output signal amplitudes (peak-to-
peak value)
horizontal output current
vertical output current (peak-to-peak
value)
MIN. TYP. MAX. UNIT
- 8.0 - V
- 110 - mA
- 35 - µV
- 1.0 - mV
- 350 - mV
- 1.0 - V
- 0.3 - V
- 0.7 - V
- 2.2 - V
0 - 5 mA
- 2.0/ - V
1.0
- 1.05 - V
- 1.33 - V
- 1.4 - V
- 2.0 - V
10 -
-1
- mA
- mA
PINNING
SYMBOL PIN
DESCRIPTION
SNDIF
1 Sound IF input
AUDIOEXT
2 External audio input
NC 3 not connected
NC 4 not connected
PLLLF
5 IF-PLL loop filter
IFVO
6 IF video output
SCL
7 serial clock input
SDA
8 serial data input/output
DECBG
9 bandgap decoupling
CHROMA
10 chrominance input (S-VHS)
CVBS/Y
11 external CVBS/Y input
VP1 12 main supply voltage (+8 V)
CVBSINT
13 internal CVBS input
GND1
14 ground 1
AUDIOOUT 15 audio output
SECPLL
16 SECAM PLL decoupling
CVBSEXT
17 external CVBS input
2


Part Number KKA8842
Description I2C BUS CONTROLLED SINGLE CHIP TV-RECEIVER
Maker KODENSHI KOREA
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