November 1985
6
Philips Semiconductors
Product specification
Switch for CTV receivers
TDA8440
D
0
/OFF gating
Power-on reset
The circuit is provided with a power-on reset function.
When the power supply is switched on an internal pulse will be generated that will reset the internal memory S
0
, in the
initial state all the switches will be in the off position and the OFF input is active (D
7
- D
0
= 0) (I
2
C mode), position defined
via SDA and SCL inputs (non-I
2
C mode).
When the power supply decreases below 5 V a pulse will be generated and the internal memory will be reset. The
behaviour of the switches will be the same as described above.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
THERMAL RESISTANCE
D
0
OFF INPUT
OUTPUTS
0 (off input active)
H
OFF
0
L
in accordance with last defined
D
7
- D
1
(may be entered while OFF = HIGH)
1 (off input inactive)
H
in accordance with D
7
- D
1
1
L
in accordance with D
7
- D
1
MIN. TYP.
MAX.
UNIT
Supply voltage
pin 15
V
P
−
−
14
V
Input voltage range
pin 17
V
SDA
−
0,3
−
V
P
+
0,3 V
pin 18
V
SCL
−
0,3
−
V
P
+
0,3 V
pin 2
V
OFF
−
0,3
−
V
P
+
0,3 V
pin 11
V
S0
−
0,3
−
V
P
+
0,3 V
pin 13
V
S1
−
0,3
−
V
P
+
0,3 V
pin 6
V
S2
−
0,3
−
V
P
+
0,3 V
Video output current
pin 16
−
I
16
−
−
50
mA
Storage temperature range
T
stg
−
−
+
125
°
C
Operating ambient temperature range
T
amb
0
−
+
70
°
C
Junction temperature
T
j
−
−
+
150
°
C
PARAMETER
SYMBOL
VALUE
UNIT
From junction to ambient in free air
R
th j
−
a
50
K/W
