EPCOS X7251D

SAW Components
Data Sheet X 7251 D
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Duroplast package SIP5D
Features
IF filter for digital TV
Switchable between two bandwidths
Optimized for cascade of two devices
Standard IC package
1
2
3
4
5
2,4
13,7
3,4
4,8
■
■
■
■
Terminals
0,65
■ Tinned CuFe alloy
0,38
4x 2,54
Dimensions in mm, approx. weight 0,5 g
1
Pin configuration
1
2
3
4
5
Input
Switching input
Chip carrier – ground
Output
Output
4
2
5
3
Type
Ordering code
X 7251 D
B39362-X7251-N201
Marking and package
according to
C61157-A1-A21
Packing
according to
F61074-V8049-Z000
Maximum ratings
Operable temperature range TA
Storage temperature range Tstg
DC voltage
AC voltage
VDC
Vpp
–25/+65
–40/+85
˚C
˚C
5
10
V
V
2
between any terminals
between any terminals
Dec 08, 2003
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Characteristics of channel 1 (switching pin 2 connected to ground)
TA = 25 ˚C
ZS = 50 Ω
ZL = 2 kΩ || 3 pF
Reference temperature:
Terminating source impedance:
Terminating load impedance:
min.
Insertion attenuation
Reference level for the
following data
36,17 MHz
Pass bandwidth
αrel < 1,5 dB
αrel < 3 dB
αrel < 15 dB
αrel < 30 dB
B1,5dB
B3dB
B15dB
B30dB
Relative attenuation
αrel
Lower sidelobe
Upper sidelobe
typ.
max.
α
25,00 ... 31,15 MHz
41,15 ... 42,00 MHz
42,00 ... 45,00 MHz
Reflected wave signal suppression
1,1 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 36,17 MHz)
Feedthrough signal suppression
1,3 µs ... 1,2 µs before main pulse
(test pulse 250 ns,
carrier frequency 36,17 MHz)
19,5
21,0
22,5
dB
7,4
7,7
8,6
8,8
7,7
8,0
8,9
9,4
8,0
8,3
9,2
10,0
MHz
MHz
MHz
MHz
35,0
31,0
37,0
41,0
37,0
44,0
42,0
50,0
—
dB
—
50,0
—
dB
—
50
—
ns
—
1,7 ||17,3
2,4 || 4,3
—
kΩ || pF
—
kΩ || pF
—
ppm/K
dB
dB
dB
∆τ
Group delay ripple (p-p)
32,25 ... 40,05 MHz
Impedance at 36,17 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
—
TCf
Temperature coefficient of frequency
3
—
Dec 08, 2003
–72
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Characteristics of channel 2 (switching pin 2 connected to pin 1)
TA = 25 ˚C
ZS = 50 Ω
ZL = 2 kΩ || 3 pF
Reference temperature:
Terminating source impedance:
Terminating load impedance:
min.
Insertion attenuation
Reference level for the
following data
36,17 MHz
Pass bandwidth
αrel < 1,5 dB
αrel < 3 dB
αrel < 15 dB
αrel < 30 dB
B1,5dB
B3dB
B15dB
B30dB
Relative attenuation
αrel
Lower sidelobe
Upper sidelobe
typ.
max.
α
25,00 ... 31,55 MHz
40,75 ... 45,00 MHz
Reflected wave signal suppression
1,1 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 36,17 MHz)
Feedthrough signal suppression
1,3 µs ... 1,2 µs before main pulse
(test pulse 250 ns,
carrier frequency 36,17 MHz)
19,5
21,0
22,5
dB
6,4
6,7
7,7
7,9
6,7
7,0
8,0
8,5
7,0
7,3
8,3
9,1
35,0
33,0
41,0
38,0
42,0
50,0
—
dB
—
50,0
—
dB
—
50
—
ns
—
1,5 ||20,9
2,4 || 4,3
—
kΩ || pF
—
kΩ || pF
—
ppm/K
MHz
MHz
MHz
MHz
dB
dB
∆τ
Group delay ripple (p-p)
32,75 ... 39,55 MHz
Impedance at 36,17 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
—
TCf
Temperature coefficient of frequency
4
—
Dec 08, 2003
–72
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Frequency response of channel 1
5
Dec 08, 2003
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Frequency response of channel 1
Time domain response of channel 1
6
Dec 08, 2003
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Frequency response of channel 2
7
Dec 08, 2003
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Frequency response of channel 2
Time domain response of channel 2
8
Dec 08, 2003
SAW Components
X 7251 D
Bandpass Filter
36,17 MHz
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, SAW CE MM PD
P.O. Box 80 17 09, 81617 Munich, GERMANY
 EPCOS AG 2003. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of
the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic
Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or
the international Representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our Sales Offices.
9
Dec 08, 2003