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Part Number: TB1227CNG
Description: TB1227CNG that is a signal processing IC for the PAL / NTSC / SECAM color TV system integrates video, ...
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TB1227CNG
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DataSheet
General Description
TB1227CNG General Description
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 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.
TB1227CNG Maximum Ratings
|
CHARACTERISTIC |
SYMBOL |
RATING |
UNIT |
| Supply Voltage |
VCCMAX |
12 |
V |
| Permissible Loss |
PDMAX |
2190 (Note 1) |
mW |
| Power Consumption Declining Degree |
1 / Qja |
17.52 |
mW / |
| Input Terminal Voltage |
Vin |
GND − 0.3~VCC + 0.3 |
V |
| Input Signal Voltage |
ein |
7 |
Vp-p |
| Operating Temperature |
Topr |
−20~65 |
|
| Conserving Temperature |
Tstg |
−55~150 |
Note: In the condition that IC is actually mounted. See the diagram below.
TB1227CNG Features
Video section
• Built-in trap filter
• Black expansion circuit
• Variable DC regeneration rate
• Y delay line
• Sharpness control by aperture control
• 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
• SCP (Sand Castle Pulse) output
Text section
• Linear RGB input
• OSD RGB input
• Cut / off-drive adjustment
• RGB primary signal output
TB1227CNG
PDF/DataSheet Download
- Datasheet: TB1227CNG
- File Size: 1323605 KB
- Manufacturer: TOSHIBA [Toshiba Semiconductor]
- Click here to Download
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