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MP4680 Datenblatt(PDF) 9 Page - NXP Semiconductors

Teilenummer MP4680
Bauteilbeschribung  Video processor with automatic cut-off and white level control
PDF  28 Pages
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Hersteller  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

MP4680 Datenblatt(HTML) 9 Page - NXP Semiconductors

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1996 Oct 25
9
Philips Semiconductors
Product specification
Video processor with automatic cut-off
and white level control
TDA4680
SATOF (Saturation control Off):
0 = saturation control enabled
1 = saturation control disabled, nominal saturation
enabled.
I2C-BUS TRANSMITTER (MICROCONTROLLER READ MODE)
As an I2C-bus transmitter, R/W = 1, the TDA4680 sends a
data byte from the status register to the microcontroller.
The data byte consists of following bits: PONRES, CB1,
CB0, CG1, CG0, CR1, CR0 and 0, where PONRES is the
most significant bit.
PONRES (Power On Reset) monitors the state of
TDA4680’s supply voltage:
0 = normal operation
1 = supply voltage has dropped below approximately
6.0 V (usually occurs when the TV receiver is switched
on or the supply voltage was interrupted).
When PONRES changes state from a logic LOW to a logic
HIGH all data and function bits are set to logic LOW.
2-BIT WHITE LEVEL ERROR SIGNAL (see Table 4)
CB1, CB0 = 2-bit white level of the blue channel.
CG1, CG0 = 2-bit white level of the green channel.
CR1, CR0 = 2-bit white level of the red channel.
Table 1
Sub-address (SAD) and data bytes; note 1
Note
1. X = don’t care.
FUNCTION
SAD
(HEX)
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
Brightness
00
0
0
A05
A04
A03
A02
A01
A00
Saturation
01
0
0
A15
A14
A13
A12
A11
A10
Contrast
02
0
0
A25
A24
A23
A22
A21
A20
Hue control voltage
03
0
0
A35
A34
A33
A32
A31
A30
Red gain
04
0
0
A45
A44
A43
A42
A41
A40
Green gain
05
0
0
A55
A54
A53
A52
A51
A50
Blue gain
06
0
0
A65
A64
A63
A62
A61
A60
Red level reference
07
0
0
A75
A74
A73
A72
A71
A70
Green level reference
08
0
0
A85
A84
A83
A82
A81
A80
Blue level reference
09
0
0
A95
A94
A93
A92
A91
A90
Peak drive limit
0A
0
0
AA5
AA4
AA3
AA2
AA1
AA0
Reserved
0B
XXXXXXXX
Control register 1
0C
SC5
DELOF
BREN
WPEN
NMEN
VBW2
VBW1
VBW0
Control register 2
0D
SATOF
FSWL
FSBL
BCOF
FSDIS2
FSON2
FSDIS1
FSON1
Reserved
0E
XXXXXXXX
Reserved
0F
XXXXXXXX



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