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參數(shù)資料
| 型號： | TDA4671 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Picture Signal Improvement PSI circuit |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP18 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 152K |
| 代理商： | TDA4671 |
1996 Dec 11
7
Philips Semiconductors
Product specification
Picture Signal Improvement (PSI) circuit
TDA4671
t
d(Y)
minimum delay step
group delay time difference
set via I
2
C-bus
f = 0.5 to 5 MHz;
maximum delay
Y delay;
CTI and peaking off
40
45
0
50
±
25
ns
ns
delay time difference between Y
and colour-difference signals
minimum delay time for peaking
VBS signal gain measured on
output pin 12 (composite signal,
peak-to-peak value)
output current (emitter-follower with
constant current source)
70
100
130
ns
t
d(peak)
G
Y
185
2
215
1
245
0
ns
dB
V
o
/V
i
; f = 500 kHz;
maximum delay
I
12
source current
sink current
1
0.4
160
mA
mA
R
12
f
res
output resistance
frequency response for
maximum delay
f = 0.5 to 3 MHz
f = 0.5 to 5 MHz
α
min
/
α
max
;
V
VBS
= 450 mV (p-p)
V
VBS
= 640 mV (p-p)
2
4
1
3
0
1
dB
dB
LIN
signal linearity for
video contents of 315 mV (p-p)
video contents of 450 mV (p-p)
0.85
0.60
Luminance peaking, selected via I
2
C-bus
f
peak
peaking frequency
f
C1
; LCF-bit = 0
f
C2
; LCF-bit = 1
4.5
2.3
5
2.6
5.5
2.9
MHz
MHz
V
peak
peaking amplitude for grade of
peaking (f
C
amplitude over 0.5 MHz
amplitude)
selectable values
3
0
+3
+6
20
dB
dB
dB
dB
%
limitation of peaking (positive
amplitude of correction signal
referred to 315 mV)
noise voltage on pin 12
(RMS value)
coring of peaking
(coring part referred to 315 mV)
V
n(rms)
without peaking;
f = 0 to 5 MHz
COR-bit = 1
1
mV
COR
20
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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相關代理商/技術參數(shù) |
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|---|---|
| TDA4672 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Picture Signal Improvement PSI circuit with enhanced peaking function |
| TDA4680 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Video processor with automatic cut-off and white level control |
| TDA4680/V6 | 制造商:Panasonic Industrial Company 功能描述:IC |
| TDA4680WP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Video processor with automatic cut-off and white level control |
| TDA4681 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Video processor with automatic cut-off and white level control |
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