LTU455B2 AEL [AEL Crystals Ltd], LTU455B2 Datasheet - Page 2

• Manufacturer Part Number: LTU455B2
• Description: Ceramic Filter 455kHz or 450kHz
• Manufacturer: AEL [AEL Crystals Ltd]

Specify
LTW33-455B
LTW33-455C
LTW33-455D
LTW33-455E
LTW33-455F
LTW33-455G
LTW33-455H
LTW33-455I
LTW33-455HT
Frequency Characteristics
FEATURES
To take the best advantage of the safety feature of ceramic filters, connect output to anIF amplifier through a DC cut capacitor.
Avoid directly applying DC to output end of ceramic filters (Between 5 & 2,3,4)
S P E C I F I C A T I O N
Numb er
Part
F R E Q U E N C Y
Order Hotline [phone]
www.aelcrystals.co.uk
1 0
2 0
3 0
4 0
5 0
6 0
400
0
High Selectivity
Low Cost
Wide Range of bandwidths Available
Industry Standard Outline
33-455D
7
410
420
455 +/ -2.0
455 +/ -2.0
455 +/ -1.5
455 +/ -1.5
455 +/ -1.5
455 +/ -1.5
455 +/ -1.0
455 +/ -1.0
455 +/ -1.0
430
Freq (M Hz)
11.3
Centre
440
Freq (kHz)
450
C H A R A C T E R I S T I C S
460
q u a r t z
470
(dB Max)
Insertion
480
Loss
Ceramic Filter
450 kHz & 455kHz
4
4
4
6
6
6
6
6
6
490
500
Pass Band
b a s e d
5
(dB Max)
LTW33-455B
LTW33-455D
LTW33-455H
Ripple
2.9 2.9 2.6
4
2.0
2
2
2
2
2
2
2
2
2
3
2
+/-15.0
+/-12.5
+/-10.0
+/- 7.5
+/- 6.0
+/- 4.5
+/- 3.0
+/- 2.0
+/- 3.0
Bandwidth
(kHz Min)
1
f r e q u e n c y
6 dB
Test Circuit
4.3
+/ -30.0
+/ -24.0
+/ -20.0
+/-15.0
+/-12.5
+/-10.0
+/- 9.0
+/- 7.5
+/- 9.0
APPLICATIONS
Bandwidth
(kHz Min)
45
Rg+R1+R2=input/Output Impedence
C=10pF (Including strays and input/output
capacitance of RF Voltmeter
40 dB
Rg
Pin Connections
1 = Input
2 = Ground
3 = Ground
4 = Ground
5 = Output
LTW33 Series
Communications Equipment
R1
S.S.G
1
c o n t r o l
2
Att. +/ -100kHz
LTW
3
Stopband
(dB M in )
4
35
35
35
35
35
35
35
35
60
www.aelcrystals.co.uk
[e-mail]
5
R2
C
Impedence ( )
c o m p o n e n t s
Input/Output
RF
V.M
2000
2000
2000
2000
2000
1500
1500
1500
1500