參數(shù)資料
型號(hào): TDA4688
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Video processor with automatic cut-off control
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP28
文件頁(yè)數(shù): 12/24頁(yè)
文件大?。?/td> 130K
代理商: TDA4688
1997 Jun 23
12
Philips Semiconductors
Product specification
Video processor with automatic cut-off control
TDA4688
Fast signal switch FSW
1
(pin 13) to select Y, CD or R
1
, G
1
, B
1
inputs
(control bits: see Table 2)
V
13
voltage to select Y and CD
voltage to select R
1
, G
1
, B
1
internal resistance to ground
difference between transit times for
signal switching and signal insertion
0.9
4.0
0.4
5.0
10
V
V
k
ns
R
13
t
Fast signal switch FSW
2
(pin 1) to select Y, CD/R
1
, G
1
, B
1
or R
2
, G
2
, B
2
inputs
(control bits: see Table 2)
V
1
voltage to select Y, CD/R
1
, G
1
, B
1
voltage to select R
2
, G
2
, B
2
internal resistance to ground
difference between transit times for
signal switching and signal insertion
0.9
4.0
0.4
5.0
10
V
V
k
ns
R
1
t
Saturation adjust [acts on
(R
Y) and
(B
Y) signals under I
2
C-bus control; subaddress 01H (bit resolution
1.5% of maximum saturation); data byte 3FH for maximum saturation, data byte 23H for nominal saturation
and data byte 00H for minimum saturation]
d
s
saturation below maximum
at 23H
at 00H; f = 100 kHz
5
50
dB
dB
Contrast adjust [acts on internal RGB signals under I
2
C-bus control; subaddress 02H (bit resolution 1.5% of
maximum contrast); data byte 3FH for maximum contrast, data byte 22H for nominal contrast and data byte
00H for minimum contrast]
d
c
contrast below maximum
at 22H
at 00H
5
22
dB
dB
Brightness adjust [acts on internal RGB signals under I
2
C-bus control; subaddress 00H (bit resolution 1.5%
of maximum brightness); data byte 3FH for maximum brightness, data byte 26H for nominal brightness and
data byte 00H for minimum brightness]
d
br
black level shift of nominal signal
amplitude referred to cut-off
measurement level
at 3FH
at 00H
30
50
%
%
White potentiometers [under I
2
C-bus control; subaddresses 04H (red), 05H (green) and 06H (blue); data byte
3FH for maximum gain; data byte 19H for nominal gain and data byte 00H for minimum gain];
note 3
G
v
relative to nominal gain
increase of gain
at 3FH
decrease of gain
at 00H
50
50
%
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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