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參數(shù)資料
| 型號(hào)： | TDA4680 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Video processor with automatic cut-off and white level control |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數(shù)： | 9/28頁 |
| 文件大小： | 243K |
| 代理商： | TDA4680 |
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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.
I
2
C-
BUS TRANSMITTER
(
MICROCONTROLLER READ MODE
)
As an I
2
C-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
Saturation
Contrast
Hue control voltage
Red gain
Green gain
Blue gain
Red level reference
Green level reference
Blue level reference
Peak drive limit
Reserved
Control register 1
Control register 2
Reserved
Reserved
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
0
0
0
0
0
0
0
X
A05
A15
A25
A35
A45
A55
A65
A75
A85
A95
AA5
X
BREN
FSBL
X
X
A04
A14
A24
A34
A44
A54
A64
A74
A84
A94
AA4
X
WPEN
BCOF
X
X
A03
A13
A23
A33
A43
A53
A63
A73
A83
A93
AA3
X
NMEN
FSDIS2
X
X
A02
A12
A22
A32
A42
A52
A62
A72
A82
A92
AA2
X
VBW2
FSON2
X
X
A01
A11
A21
A31
A41
A51
A61
A71
A81
A91
AA1
X
VBW1
FSDIS1
X
X
A00
A10
A20
A30
A40
A50
A60
A70
A80
A90
AA0
X
VBW0
FSON1
X
X
SC5
SATOF
X
X
DELOF
FSWL
X
X
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