TDA1581T Philips Semiconductors, TDA1581T Datasheet - Page 11
TDA1581T
Manufacturer Part Number
TDA1581T
Description
Decoder for traffic warning VWF radio transmissions
Manufacturer
Philips Semiconductors
Datasheet
1.TDA1581T.pdf
(14 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA1581T
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Philips Semiconductors
FILTER INFORMATION
Gain
Amplifier conditions: G
Recommended components
March 1992
G
resonance frequency
gain at
quality
Q =
and
or
and
v
G
r
Decoder for traffic warning (VWF) radio
transmissions
=
C1, C2
R1, R2, R3
C1, C2
R1, R2, R3
=
vr
–
=
-----------------------------------------------------------------------------------------------------------------------------------
p
2
+
=
p
r
------------------------------------ -
R3 C1 C2
C1
+
o
>> G
C2
--------------------------------------------------------------------- -
--------------------- -
C1
R1 R2
--------------------- - R3 C1 C2
R1
C1 C2
--------------------- -
C1
C2
GENERAL EQUATION
--------------------- -
R1 C1
+
v
+
+
+
and G
C2
p
C2
R2
-----------------------------------------------------------------
R1 R2 R3 C1 C2
metallized polycarbonate film (MKC) capacitors; 5%
metal film (MR) resistors; 2%
metallized polyester film (MKT) capacitors; 5%
carbon film (CR) resistors; 2%
R3
------- -
R1
o
1
>> 2
R3 R1
------------------------------------- -
R1
R1 R2
+
Q
R2
2
+
R2
--------------------------------------------- -
C
1
-- -
2
1
-- -
2
11
, in which
R3 R1
------------------------------------- -
--------------------- - R3
R1
R1 R2
R3
------- -
R1
R1 R2
+
1
C1 = C2 = C
R2
+
p
R2
=
j
and G
v
=
V
----- -
V
o
i
------------------------------ -
C R2 R3
1
-- -
2
1
-- -
2
R3
------- -
R1
R3
------- -
R2
1
Preliminary specification
C1 = C2 = C
R2 << R1
TDA1581T