TDA9209 datasheet(6/22 Pages) STMICROELECTRONICS

Il numero della parte	TDA9209

Spiegazioni elettronici	150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS INCLUDING CUT-OFF INPUTS AND VIDEO DETECTION

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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TDA9209

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Functioning with 5 V Power VCC

To simplify the application, it is possible to supply

the power VCC with 5 V (instead of 8 V nominal) at

the expense of output swing voltage.

Functioning without Blanking Pulse

If no blanking pulse is applied to the TDA9209, the

internal BPCP can be connected to the sample

and hold circuit (Register 8, bit 7 = 1 and BLK pin

grounded) so that the output DC level is still con-

trolled by I2C.

To ensure the device correct behavior in the worst

possible conditions, the Brightness Register must

be set to 0.

Figure 3. Waveforms VOUT, BRT, CONT, OSD

Notes :

1. VDC

=

0.5 to 2.5V

2. VBLACK

=

VDC + 0.4V

3. VBRT

=

VBLACK + BRT (with BRT = 0 to 2V)

4. VCONT

=

VBRT + CONT = k x Video IN (CONT = 4.4VPP max. for VIN = 0.7VPP)

5. VOSD

=

VBRT + OSD (OSD max. = 4.9VPP , OSD min = 0VPP)

HSYNC

BPCP

BLK

Video IN

FBLK

OSD IN

V

DC

CONT

BRT

0.4V fixed

V

CONT

(4)

V

OSD

(5)

V

BRT

(3)

V

BLACK

(2)

(1)

OSD

VOUT1 , VOUT2 ,VOUT3

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