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PDF TB1229DN Data sheet ( Hoja de datos )
| Número de pieza | TB1229DN | |
| Descripción | VIDEO / CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC | |
| Fabricantes | TOSHIBA | |
| Logotipo |  |
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TOSHIBA Bi-CMOS INTEGRATED CIRCUIT
SILICON MONOLITHIC
TB1229DN
TB1229DN
VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC
SYSTEM COLOR TV
TB1229DN that is a signal processing IC for the PAL / NTSC
color TV system integrates video, chroma and synchronizing
signal processing circuits together in a 56-pin shrink DIP plastic
package.
TB1229DN incorporates a high performance picture quality
compensation circuit in the video section, an automatic PAL /
NTSC 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.
Weight: 5.55 g (typ.)
The PAL demodulation circuit which is an adjustment-free circuit incorporates a 1H DL circuit inside for operating
the base band signal processing system.
Also, TB1229DN makes it possible to set or control various functions through the built-in I2C bus line.
FEATURES
l Video section
· Built-in trap filter
· Black expansion circuit
· Variable DC regeneration rate
· Y delay line
· Sharpness control by aperture control
· γ correction
l Chroma section
· Built-in 1H Delay circuit
· PAL 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
· Color limiter circuit
1 2003-03-13
1 page  
PIN
No.
PIN NAME
FUNCTION
INTERFACE CIRCUIT
7 Coincident Det.
To connect filter for detecting
presence of H. synchronizing signal
or V. synchronizing signal.
8 VDD (5V)
VDD terminal of the LOGIC block.
Connect 5V (Typ.) to this pin.
―
TB1229DN
INPUT / OUTPUT
SIGNAL
―
―
9 SCL
SCL terminal of I2C bus.
―
10 SDA
SDA terminal of I2C bus.
11 Digital GND
12 B Output
13 G Output
14 R Output
15 TEXT GND
Grounding terminal of LOGIC block.
R, G, B output terminals.
Grounding terminal of TEXT block.
16 ABCL
External unicolor brightness control
terminal. Sensitivity and start point
of ABL can be set through the bus.
17 RGB-VCC (9V)
VCC terminal of TEXT block.
Connect 9V (Typ.) to this pin.
―
―
―
―
―
―
6.4V at Open
―
5 2003-03-13
5 Page 
PIN
No.
PIN NAME
55 DEF GND
56 Video Output
FUNCTION
Grounding terminal of DEF
(deflection) block.
Output terminal of external / TV
video input selected by bus. Output
level is 2.0Vp-p (Typ.).
Connect a drive resistor to this pin
because it is an open-emitter output
type. The minimum drive resistance
is 1.2kΩ.
INTERFACE CIRCUIT
―
TB1229DN
INPUT / OUTPUT
SIGNAL
―
11 2003-03-13
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TB1229DN.PDF ] | |
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