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TB1227CNG Datasheet

  • TB1227CNG

  • VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PA...

  • 94頁

  • TOSHIBA

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TB1227CNG
TENTATIVE
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT
SILICON MONOLITHIC
TB1227CNG
VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC
/ SECAM SYSTEM COLOR TV
TB1227CNG that is a signal processing IC for the PAL / NTSC /
SECAM color TV system integrates video, chroma and
synchronizing signal processing circuits together in a 56-pin
shrink DIP plastic package.
TB1227CNG incorporates a high performance picture quality
compensation circuit in the video section, an automatic PAL /
NTSC / SECAM discrimination circuit in the chroma section, and
an automatic 50 / 60Hz discrimination circuit in the
synchronizing section. Besides a crystal oscillator that internally
generates 4.43MHz, 3.58MHz and M / N-PAL clock signals for
Weight: 5.55 g (typ.)
color demodulation, there is a horizontal PLL circuit built in the
IC.
The PAL / SECAM demodulation circuit which is an adjustment-free circuit incorporates a 1H DL circuit inside for
operating the base band signal processing system.
Also, TB1227CNG makes it possible to set or control various functions through the built-in I
2
C bus line.
FEATURES
Video section
鈥?/div>
Built-in trap filter
鈥?/div>
Black expansion circuit
鈥?/div>
Variable DC regeneration rate
鈥?/div>
Y delay line
鈥?/div>
Sharpness control by aperture control
鈥?/div>
緯
correction
鈥?/div>
VSM output
Chroma section
鈥?/div>
Built-in 1H Delay circuit
鈥?/div>
PAL / SECAM base band demodulation system
鈥?/div>
One crystal color demodulation circuit
(4.43MHz, 3.58MHz, M / N-PAL)
鈥?/div>
Automatic system discrimination, system forced mode
鈥?/div>
1H delay line also serves as comb filter in NTSC demodulation
鈥?/div>
Built-in band-pass filter, SECAM bell filter
鈥?/div>
Color limiter circuit
鈥?/div>
Fsc output
Synchronizing deflecting section
鈥?/div>
Built-in horizontal VCO resonator
鈥?/div>
Adjustment-free horizontal / vertical oscillation by count-down circuit
鈥?/div>
Double AFC circuit
鈥?/div>
Vertical frequency automatic discrimination circuit
鈥?/div>
Horizontal / vertical holding adjustment
鈥?/div>
Vertical ramp output
鈥?/div>
Vertical amplitude adjustment
鈥?/div>
Vertical linearity / S-shaped curve adjustment
1
2004-05-24

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