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參數(shù)資料
| 型號： | TDA4672 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Picture Signal Improvement PSI circuit with enhanced peaking function |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP18 |
| 封裝： | 0.300 INCH, PLASTIC, SOT-102-1, DIP-18 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 100K |
| 代理商： | TDA4672 |
1996 Dec 11
2
Philips Semiconductors
Product specification
Picture Signal Improvement (PSI) circuit
with enhanced peaking function
TDA4672
FEATURES
Luminance signal delay from 20 ns to 1100 ns
(minimum step 45 ns)
Selectable luminance signal peaking with symmetrical
overshoots
Selectable 2.6 or 5 MHz peaking centre frequency and
degree of peaking from
6 dB to +9 dB in 16 steps of
1 dB each
Selectable noise reduction by coring
Selectable 5 or 12 V sandcastle input voltage
All controls selected via the I
2
C-bus
Timing pulse generation for clamping and delay time
control synchronized by sandcastle pulse
Automatic luminance signal delay correction using a
control loop
Luminance input signal clamping with coupling capacitor
4.5 to +8.8 V supply voltage
Minimum of external components.
GENERAL DESCRIPTION
The TDA4672 delays the luminance signal. The luminance
signal can also be improved by peaking and noise
reduction (coring).
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
P
I
P(tot)
t
d(Y)
V
i(Y)(p-p)
G
Y
T
amb
supply voltage (pin 1)
total supply current
Y signal delay time
composite Y input signal (peak-to-peak value, pin 16)
voltage gain of Y channel
operating ambient temperature
4.5
26
20
0
5
37
450
1
8.8
46
1130
640
70
V
mA
ns
mV
dB
°
C
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA4672
DIP18
plastic dual in-line package; 18 leads (300 mil)
SOT102-1
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