TDA4665, Elektronika i elektryka, Serwisówki
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INTEGRATED CIRCUITS
DATA SHEET
TDA4665
Baseband delay line
Product specication
Supersedes data of 1995 Oct 30
File under Integrated Circuits, IC02
1996 Dec 17
Philips Semiconductors
Product specication
Baseband delay line
TDA4665
FEATURES
GENERAL DESCRIPTION
·
Two comb filters, using the switched-capacitor
technique, for one line delay time (64
The TDA4665 is an integrated baseband delay line circuit
with one line delay. It is suitable for decoders with
colour-difference signal outputs
m
s)
·
Adjustment-free application
±
(R
-
Y) and
±
(B
-
Y).
·
No crosstalk between SECAM colour carriers (diaphoty)
·
Handles negative or positive colour-difference input
signals
·
Clamping of AC-coupled input signals (
±
(R
-
Y) and
±
(B
-
Y))
·
VCO without external components
·
3 MHz internal clock signal derived from a 6 MHz CCO,
line-locked by the sandcastle pulse (64
m
s line)
·
Sample-and-hold circuits and low-pass filters to
suppress the 3 MHz clock signal
·
Addition of delayed and non-delayed output signals
·
Output buffer amplifiers
·
Comb filtering functions for NTSC colour-difference
signals to suppress cross-colour.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
P1
analog supply voltage (pin 9)
4.5
5
6
V
V
P2
digital supply voltage (pin 1)
4.5
5
6
V
I
P(tot)
total supply current
-
5.5
7.0
mA
V
i(p-p)
±
(R
-
Y) input signal PAL/NTSC (peak-to-peak value; pin 16)
-
525
-
mV
±
(B
-
Y) input signal PAL/NTSC (peak-to-peak value; pin 14)
-
665
-
mV
±
(R
-
Y) input signal SECAM (peak-to-peak value; pin 16)
-
1.05
-
V
±
(B
-
Y) input signal SECAM (peak-to-peak value; pin 14)
-
1.33
-
V
G
v
gain V
o
/ V
i
of colour-difference output signals
V
11
/ V
16
for PAL and NTSC
5.3
5.8
6.3
dB
V
12
/ V
14
for PAL and NTSC
5.3
5.8
6.3
dB
V
11
/ V
16
for SECAM
-
0.6
-
0.1
+0.4
dB
V
12
/ V
14
for SECAM
-
0.6
-
0.1
+0.4
dB
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA4665
DIP16
plastic dual in-line package; 16 leads (300 mil)
SOT38-4
TDA4665T
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
1996 Dec 17
2
handbook, full pagewidth
16
SIGNAL
CLAMPING
±
(R
-
Y)
11
LINE
MEMORY
SAMPLE-
AND-HOLD
±
(R
-
Y)
LP
colour-difference
input signals
pre-amplifiers
addition
stages
output
buffers
colour-difference
output signals
14
SIGNAL
CLAMPING
±
(B
-
Y)
12
LINE
MEMORY
SAMPLE-
AND-HOLD
±
(B
-
Y)
LP
9
V
P1
analog supply
2
n.c.
TDA4665
6
3 MHz shifting clock
n.c.
FREQUENCY
PHASE
DETECTOR
13
sandcastle
pulse input
5
SANDCASTLE
DETECTOR
DIVIDER
BY 192
n.c.
15
n.c.
LP
6 MHz
CCO
DIVIDER
BY 2
7
i.c.
10
GND1
digital supply
1
3
4, 8
V
P2
GND2
MED848
Fig.1 Block diagram.
Philips Semiconductors
Product specication
Baseband delay line
TDA4665
PINNING
SYMBOL
PIN
DESCRIPTION
V
P2
1
+5 V supply voltage for digital part
n.c.
2
not connected
handbook, halfpage
V
P2
1
16
V
i(R
-
Y)
GND2
3
ground for digital part (0 V)
n.c.
2
15
n.c.
i.c.
4
internally connected
GND2
3
14
V
i(B
-
Y)
SAND
5
sandcastle pulse input
n.c.
6
not connected
i.c.
4
13
n.c.
TDA4665
i.c.
7
internally connected
SAND
5
12
V
o(B
-
Y)
i.c.
8
internally connected
n.c.
6
11
V
o(R
-
Y)
V
P1
9
+5 V supply voltage for analog part
i.c.
7
10
GND1
GND1
10
ground for analog part (0 V)
i.c.
8
9
V
P1
V
o(R
-
Y)
11
±
(R
-
Y) output signal
MED849
V
o(B
-
Y)
12
±
(B
-
Y) output signal
n.c.
13
not connected
V
i(B
-
Y)
14
±
(B
-
Y) input signal
n.c.
15
not connected
Fig.2 Pin configuration.
V
i(R
-
Y)
16
±
(R
-
Y) input signal
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134). Ground pins 3 and 10 connected together.
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
P1
analog supply voltage (pin 9)
-
0.5
+7
V
V
P2
digital supply voltage (pin 1)
-
0.5
+7
V
V
5
voltage on pin 5
-
0.5
V
P
+ 1.0 V
V
n
voltage on pins 11, 12, 14 and 16
-
0.5
V
P
V
T
stg
storage temperature
-
25
+150
C
T
amb
operating ambient temperature
0
70
C
V
ESD
electrostatic handling for all pins; note 1
-
±
500
V
Note
1. Equivalent to discharging a 200 pF capacitor through a 0
W
series resistor.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
SOT38-4
75
K/W
SOT109-1
220
K/W
1996 Dec 17
4
°
°
Philips Semiconductors
Product specication
Baseband delay line
TDA4665
CHARACTERISTICS
V
P
= 5.0 V; input signals as specied in characteristics with 75% colour bars;
super-sandcastle frequency of 15.625 kHz; T
amb
= 25
°
C; measurements taken in Fig.3; unless otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supply
V
P1
analog supply voltage (pin 9)
4.5
5
6
V
V
P2
digital supply voltage (pin 1)
4.5
5
6
V
I
P1
analog supply current
-
4.8
6.0
mA
I
P2
digital supply current
-
0.7
1.0
mA
Colour-difference input signals
V
i(p-p)
input signal (peak-to-peak value)
note 1
±
(R
-
Y) PAL and NTSC (pin 16)
-
525
-
mV
±
(B
-
Y) PAL and NTSC (pin 14)
-
665
-
mV
±
(R
-
Y) SECAM (pin 16)
-
1.05
-
V
±
(B
-
Y) SECAM (pin 14)
-
1.33
-
V
V
i(max)(p-p)
maximum symmetrical input signal
(peak-to-peak value)
±
(R
-
Y) or
±
(B
-
Y) for PAL and NTSC
before clipping
1
-
-
V
±
(R
-
Y) or
±
(B
-
Y) for SECAM
before clipping
2
-
-
V
R
14, 16
input resistance during clamping
-
-
40
k
W
C
14, 16
input capacitance
-
-
10
pF
V
14, 16
input clamping voltage
proportional to V
P
1.3
1.5
1.7
V
Colour-difference output signals
V
o(p-p)
output signal (peak-to-peak value)
±
(R
-
Y) on pin 11
all standards
-
1.05
-
V
±
(B
-
Y) on pin 12
all standards
-
1.33
-
V
V
11
/V
12
ratio of output amplitudes at equal input
signals
V
i(14,16)(p-p)
= 1.33 V
-
0.4
0
+0.4
dB
V
11, 12
DC output voltage
proportional to V
P
2.5
2.9
3.3
V
R
11, 12
output resistance
-
330
400
W
G
v
gain for PAL and NTSC
ratio V
o
/V
i
5.3
5.8
6.3
dB
gain for SECAM
ratio V
o
/V
i
-
0.6
-
0.1
+0.4
dB
V
n
/V
n+1
ratio of delayed to non-delayed output
signals (pins 11 and 12)
V
i(14,16)(p-p)
= 1.33 V;
SECAM signals
-
0.1
0
+0.1
dB
V
n(rms)
noise voltage (RMS value;
pins 11 and 12)
V
i(14,16)
= 0 V; note 2
-
-
1.2
mV
V
(11,12)(p-p)
unwanted signals (line-locked)
(peak-to-peak value)
V
i(14,16)
= 0 V; active
video; R
S
= 300
W
meander
-
-
5
mV
spikes
-
-
10
mV
S/N(W)
weighted signal-to-noise ratio
(pins 11 and 12)
V
o(p-p)
= 1 V; note 2
-
54
-
dB
D
t
d
time difference between non-delayed and
delayed output signals (pins 11 and 12)
63.94
64
64.06
m
s
1996 Dec 17
5
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