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부품번호 | TB1227CNG 기능 |
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기능 | Processor Miscellaneous | ||
제조업체 | Toshiba | ||
로고 | |||
TENTATIVE
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT
SILICON MONOLITHIC
TB1227CNG
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
color demodulation, there is a horizontal PLL circuit built in the
Weight: 5.55 g (typ.)
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 I2C bus line.
FEATURES
Video section
• Built-in trap filter
• Black expansion circuit
• Variable DC regeneration rate
• Y delay line
• Sharpness control by aperture control
• γ correction
• VSM output
Chroma section
• Built-in 1H Delay circuit
• PAL / SECAM base band demodulation system
• One crystal color demodulation circuit
(4.43MHz, 3.58MHz, M / N-PAL)
• Automatic system discrimination, system forced mode
• 1H delay line also serves as comb filter in NTSC demodulation
• Built-in band-pass filter, SECAM bell filter
• Color limiter circuit
• Fsc output
Synchronizing deflecting section
• Built-in horizontal VCO resonator
• Adjustment-free horizontal / vertical oscillation by count-down circuit
• Double AFC circuit
• Vertical frequency automatic discrimination circuit
• Horizontal / vertical holding adjustment
• Vertical ramp output
• Vertical amplitude adjustment
• Vertical linearity / S-shaped curve adjustment
1
2004-05-24
TERMINAL FUNCTIONS
PIN
No.
PIN NAME
FUNCTION
INTERFACE CIRCUIT
TB1227CNG
INPUT /
OUTPUTSIGNAL
1 SCP OUTPUT
Output terminal of Sand Castle
Pulse. (SCP)
To connect drive resistor for SCP.
2 V-AGC
3 H-VCC (9V)
Controls pin 52 to maintain a
uniform V-ramp output.
Connect a current smoothing
capacitor to this pin.
VCC for the DEF block (deflecting
system).
Connect 9V (Typ.) to this pin.
4 Horizontal Output Horizontal output terminal.
Corrects picture distortion in high
voltage variation. Input AC
5
Picture Distortion
Correction
component of high voltage variation.
For inactivating the picture distortion
correction function, connect 0.01µF
capacitor between this pin and GND.
6 FBP Input
FBP input for generating horizontal
AFC2 detection pulse and horizontal
blanking pulse.
The threshold of horizontal AFC2
detection is set H.VCC-2Vf
(Vf≈0.75V).
Confirming the power supply
voltage, determine the high level of
FBP.
—
—
—
4.5V at Open
4 2004-05-24
4페이지 PIN
No.
PIN NAME
FUNCTION
INTERFACE CIRCUIT
TB1227CNG
INPUT / OUTPUT
SIGNAL
28
1Bit DAC Output
Terminal
Enable to change slave address to
8Ah by a connecting VCC with this
terminal.
29 VSM Output Terminal
Power output the signal that is
primary differentiated Y signal.
Enable to change output amplifier
and phase by the Bus.
30 APC Filter
To connect APC filter for chroma
demodulation.
—
DC
3.2V
31 Y2 Input
Input terminal of processed Y signal.
Input Y signal through clamping
capacitor. Standard input level :
0.7Vp-p
32 Fsc GND
33 B-Y Input
34 R-Y Input
Grounding terminal of VCXO block.
Insert a decoupling capacitor
between this pin and pin 38 (Fsc
VDD) at the shortest distance from
both.
Input terminal of B-Y or R-Y signal.
Input signal through a clamping
capacitor.
——
DC
2.5V
AC
B-Y : 650mVp-p
R-Y : 510mVp-p
(with input of PAL-75%
color bar signal)
7 2004-05-24
7페이지 | |||
구 성 | 총 30 페이지수 | ||
다운로드 | [ TB1227CNG.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
TB1227CNG | Processor Miscellaneous | Toshiba |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |