Reference level for the relative attenuation arel of the TFS246H is the minimum of the pass band attenuation amin. The minimum of the pass band
attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 246 MHz without any tolerance. The given values for the relative
attenuation arel and for the group delay ripple have to be reached at the frequencies given below even if the centre frequency fc is shifted due to the
temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency fc.
Data
Insertion loss
(reference level)
Nominal frequency
Amplitude ripple
f
N
-
85
kHz
Relative attenuation
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
±
±
±
±
±
±
±
±
120
330
400
600
800
1,6
3,0
20
kHz
kHz
kHz
kHz
kHz
MHz
MHz
MHz
...
...
...
...
...
...
...
f
N
f
N
f
N
f
N
f
N
f
N
f
N
±
±
±
±
±
±
±
400
600
800
1,6
3,0
20
100
kHz
kHz
kHz
MHz
MHz
MHz
MHz
... f
N
+
93
kHz
arel
ae =amin
f
N
typ. value
2,5
-
-
-
1,5
22
33
50
55
55
55
55
dB
dB
dB
dB
dB
dB
dB
dB
dB
tolerance / limit
max.
5
246
dB
MHz
max.
max.
min.
min.
min.
min.
min.
min.
min.
1,5
3
18
25
40
45
45
46
45
dB
dB
dB
dB
dB
dB
dB
dB
dB
Group delay ripple
±
±
±
50
70
100
kHz
kHz
kHz
OTR
T
0
TCf **
0,5
0,8
1,2
-
-
25
-0,036
°C
ppm/K²
µs
µs
µs
max.
max.
max.
1,2
1,5
2,5
µs
µs
µs
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
- 20 °C ... + 70 °C
- 30 °C ... + 85 °C
-
-
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference
values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
**)
∆f(Hz)
= TCf(ppm/K) x (T-T
0
)² x fTo(MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Filename: tfs246h.doc
Version 1.3
09.03.2005
VI
TELEFILTER
Construction and pin connection
(All dimensions in mm)
Filter specification
TFS 246H
2/5
S 246H
●
T11
1
2
3
4
5
6
7
8
9
10
11
12
Output
Output
Ground
External Coil
Ground
Ground
Input
Input
Ground
Ground
Ground
Ground
Date code:
T
U
V
...
Year + week
2005
2006
2007
50
Ω
Test circuit 1
LB-IN
L1
8
1
L2
LB-OUT
C1
SAW
7
4
3,5,6,9,10,11,12
L5
2
C2
L3
L4
50
Ω
Test circuit 2
LB-IN
C1
8
1
C2
LB-OUT
L1
SAW
7
4
3,5,6,9,10,11,12
L3
2
L2
C3
C4
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Filename: tfs246h.doc
Version 1.3
09.03.2005
VI
TELEFILTER
Stability characteristics
Filter specification
TFS 246H
3/5
After the following tests the filter shall meet the whole specification:
1. Shock:
2. Vibration:
3. Change of
temperature:
4. Resistance to
solder heat (reflow):
500g, 1 ms, half sine wave, 3 shocks each plane;
DIN IEC 68 T2 - 27
10 Hz to 500 Hz, 0,35 mm or 5 g respectively, 1 octave per min, 10 cycles per plan, 3 plans;
DIN IEC 68 T2 - 6
-55 °C to 125°C / 30 min. each / 10 cycles
DIN IEC 68 part 2 – 14 Test N
reflow possible: twice max.;
for temperature conditions refer to the attached "Air reflow temperature conditions" on page 4;
Packing
Tape & Reel:
IEC 286 – 3, with exeption of value for N and minimum bending radius;
tape type II, embossed carrier tape with top cover tape on the upper side;
max. pieces of filters peer reel:
reel of empty components at start:
reel of empty components at start including leader:
trailer:
3000
min. 300 mm
min. 500 mm
min. 300 mm
Pull Off Direction
Tape (all dimensions in mm)
W
: 16,00 ± 0,3
Po
: 4,00 ± 0,1
Do
: 1,50 +0,1/-0
E
: 1,75 ± 0,1
F
: 7,50 ± 0,1
G(min)
: 0,60
P2
: 2,00 ± 0,1
P1
: 8,00 ± 0,1
D1(min)
: 1,50
Ao
: 5,50 ± 0,1
Bo
: 7,50 ± 0,1
Ct
: 13,5 ± 0,1
Date Code
P1
Po
P2
t
Do
G
Ct
Bo
F
Ko
Typ
PIN Marker
D1
Ao
W 2
A
C
N
W 1
E
G
W
Reel (all dimensions in mm)
A
: 330
W1
: 16,4 +2/-0
W2(max) : 22,4
N(min)
: 50
C
: 13,0 +0,5/-0,2
The minimum bending radius is 45 mm.
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Filename: tfs246h.doc
Version 1.3
09.03.2005
VI
TELEFILTER
Air reflow temperature conditions
Filter specification
TFS 246H
4/5
Conditions
Average ramp-up rate (30°C to 217°C)
> 100°C
> 150°C
> 217°C
Peak temperature
Time within 5°C of actual peak temperature
Cool-down rate (Peak to 50°C)
Time from 30°C to Peak temperature
Exposure
less than 3°C/second
between 300 and 600 seconds
between 240 and 500 seconds
between 30 and 150 seconds
max. 260°C
between 10 and 30 seconds
less than 6°C/second
no greater than 300 seconds
Chip-mount air reflow profile
Temperature / °C
max. 260°C
217°C
max. 300 s
10 ... 30 s
30 ... 150 s
Time / s
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Filename: tfs246h.doc
Version 1.3
09.03.2005
VI
TELEFILTER
History
Version
1.2
Reason of Changes
Filter specification
TFS 246H
5/5
Name
Steiner
Date
15.08.2001
Add “History”
Use harder conditions for “stability characteristics”
Correct “Tape and reel” information
Add footnotes
Changed reflow profile, reworked construction and pin configuration
1.3
Martens
09.03.2005
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
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