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參數(shù)資料
| 型號(hào)： | TDA4670 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Picture Signal Improvement PSI circuit |
| 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> | 107K |
| 代理商： | TDA4670 |
1996 Dec 11
2
Philips Semiconductors
Product specification
Picture Signal Improvement (PSI) circuit
TDA4670
FEATURES
Luminance signal delay from 20 to 1100 ns (minimum
step 45 ns)
Luminance signal peaking with selectable symmetrical
overshoots
2.6 or 5 MHz peaking centre frequency and selectable
degree of peaking (
3, 0, +3 and +6 dB)
Selectable noise reduction by coring
Handles negative and positive colour-difference signals
Selectable Colour Transient Improvement (CTI) to
decrease the colour-difference signal transient times to
those of the high frequency luminance signals
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 and colour-difference input signal clamping
with coupling capacitor
4.5 to 8.8 V supply voltage range
Minimum of external components required.
GENERAL DESCRIPTION
The TDA4670 delays the luminance signal and improves
colour-difference signal transients. Additionally, the
luminance signal can 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(VBS)
V
i(CD)(p-p)
supply voltage (pins 1 and 5)
total supply current
Y signal delay time
composite Y input signal (peak-to-peak value, pin 16)
colour-difference input signal (peak-to-peak value)
±
(R
Y) on pin 3
±
(R
Y) on pin 7
gain of Y channel
gain of colour-difference channel
operating ambient temperature
4.5
31
20
5
41
450
8.8
52
1130
640
V
mA
ns
mV
0
1.05
1.33
1
0
1.48
1.88
70
V
V
dB
dB
°
C
G
Y
G
CD
T
amb
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA4670
DIP18
plastic dual in-line package; 18 leads (300 mil)
SOT102-1
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| TDA4671 | Picture Signal Improvement PSI circuit |
| TDA4672 | Picture Signal Improvement PSI circuit with enhanced peaking function |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4671 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Picture Signal Improvement PSI circuit |
| 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 |
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