TDA4672 Datasheet, PDF (4/16 Pages) NXP Semiconductors – Picture Signal Improvement PSI circuit with enhanced peaking function

Philips Semiconductors
Picture Signal Improvement (PSI) circuit
with enhanced peaking function
Product specification
TDA4672
PINNING
SYMBOL PIN
DESCRIPTION
V_P
C_DL
V_{i(R − Y)}
1 positive supply voltage
2 capacitor of delay time control
3
±(R − Y) colour-difference input
signal; note 1
V_{o(R − Y)}
4
±(R − Y) colour-difference output
signal; note 1
n.c.
5 not connected
V_{o(B − Y)}
6
±(B − Y) colour-difference output
signal; note 2
V_{i(B − Y)}
7
±(B − Y) colour-difference input
signal; note 2
GND2
SDA
SCL
8 ground 2 (0 V)
9 I²C-bus serial data input/output
10 I²C-bus serial clock input
C_COR
V_oY
C_CLP1
C_CLP2
C_ref
V_iY
SAND
11 coring capacitor
12 delayed luminance output signal
13 black level clamping capacitor 1
14 black level clamping capacitor 2
15 capacitor of reference voltage
16 luminance input signal
17 sandcastle pulse input
GND1
18 ground 1 (0 V)
Notes
1. Pin 3 is connected directly to pin 4.
2. Pin 7 is connected directly to pin 6.
handbook, halfpage
VP ₁
18 GND1
CDL ₂
17 SAND
Vi(R _{− Y)} 3
Vo(R _{− Y) 4}
n.c. 5
16 ViY
15 Cref
TDA4672 14 ^CCLP2
Vo(B _{− Y)} 6
Vi(B _{− Y) 7}
GND2 8
13 ^CCLP1
12 VoY
11 ^CCOR
SDA 9
10 SCL
MED757
Fig.2 Pin configuration.
1996 Dec 11
4