參數(shù)資料
型號： TDA4886
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： 140 MHz video controller with I2C-bus
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP24
文件頁數(shù)： 15/52頁
文件大?。?/td> 495K
代理商： TDA4886
1998 Nov 11
15
Philips Semiconductors
Product specification
140 MHz video controller with I
2
C-bus
TDA4886
Frequency response at signal outputs (channel 1: pin 22; channel 2: pin 19; channel 3: pin 16)
G
22,19,16(f)
amplification decrease by
frequency response
t
r(22,19,16)
rise time of fast transients
f = 160 MHz;
V
i(b-w)
≤
0.2 V (small signal)
input rise time = 1 ns;
10 to 90% amplitude;
nominal colour signal; note 23
input fall time = 1 ns;
90 to 10% amplitude;
nominal colour signal; note 23
input rise/fall time = 1 ns;
nominal colour signal
1.2
3.0
dB
3.2
3.5
ns
t
f(22,19,16)
fall time of fast transients
4.0
4.3
ns
dV
22,19,16
over/undershoot of output
signal pulse related to actual
output pulse amplitude
10
%
Crosstalk at signal outputs (channel 1: pin 22; channel 2: pin 19; channel 3: pin 16)
α
ct(tr)
transient crosstalk suppression input rise/fall time = 1 ns;
note 24
f = 50 MHz
f = 100 MHz
10
dB
α
ct(f)
crosstalk suppression by
frequency
25
10
dB
dB
Internal feedback reference voltage;
see Fig.12 and note 25
V
ref(n)
internal reference voltage for
negative feedback polarity
FFH (minimum); FPOL = 0
00H (maximum); FPOL = 0
FPOL = 1
BLH2 = 0; BLH1 = 0
BLH2 = 0; BLH1 = 1
BLH2 = 1; BLH1 = 0
BLH2 = 1; BLH1 = 1
3.85
5.6
4.05
5.77
4.2
5.9
V
V
V
ref(p)
internal reference voltage for
positive feedback polarity
0.71
0.95
1.19
1.43
0.77
1.01
1.25
1.49
0.83
1.07
1.31
1.55
V
V
V
V
Output clamping, feedback inputs for DC coupling (channel 1: pin 23; channel 2: pin 20; channel 3: pin 17)
I
23,20,17(max)
maximum input current
during output clamping;
V
11
> 3.5 V; V
23,20,17
= 0.5 V;
FPOL = 0
PEDST = 0; V
11
> 3.5 V;
FPOL = 0
PEDST = 1; V
11
> 3.5 V;
FPOL = 0
500
200
60
nA
V
22,19,16(rbl)(min)
minimum reference black level
0.01
0.1
0.5
V
minimum pedestal black level
0.01
0.1
0.5
V
V
22,19,16(rbl)(max)
maximum reference black level PEDST = 0; V
11
> 3.5 V;
FPOL = 0
PEDST = 1; V
11
> 3.5 V;
FPOL = 0
FPOL = 0; note 26
FPOL = 0;
line frequency = 60 kHz;
10% duty cycle
2.4
2.8
V
maximum pedestal black level
2.4
2.8
V
V
bl(CRT)
V
22,19,16(bl)(lf)
black level variation at CRT
black level variation between
clamping pulses related to
nominal colour signal
0.25
200
0.5
mV
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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