TB1226EN
TB1226EN is Video / Chroma and Synchronizing Signals Processor manufactured by Toshiba.
FEATURES
Video section
- Built-in trap filter
- Black expansion circuit
- Variable DC regeneration rate
- Y delay line
- Sharpness control by aperture control
- γ correction 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 b filter in NTSC demodulation
- Built-in band-pass filter, SECAM bell filter
- Color limiter circuit
2001-07-26
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 Text section
- Linear RGB input
- OSD RGB input
..
- Cut / off-drive adjustment
- RGB primary signal output
2001-07-26
..
BLOCK DIAGRAM
2001-07-26
TERMINAL FUNCTIONS
PIN No. PIN NAME FUNCTION INTERFACE CIRCUIT INPUT / OUTPUT SIGNAL Negative 1Vp-p sync
1...