Transcript
Features Resistance Welded Package Excellent Solderability
General Specifications Nominal Holder Type Poles Passband Stopband Frequency Minimum Maximum (MHz) 10.695000 49U or 49T 2 6dB±3.5KHz 20dB±10KHz 3dB±3.75KHz 18dB±12.5KHz 10.700000 49T 2 3dB±7.5KHz 18dB±25KHz 10.700000 49T 2 3dB±3.75KHz 40dB±12.5KHz 10.695000 2x49T 4 10.700000 4 3dB±3.75KHz 40dB±12.5KHz 2x49T 3dB±3.0KHz 40dB±10KHz 10.700000 2x49T 4 3dB±7.5KHz 40dB±25KHz 10.700000 2x49T 4 3dB±7.5KHz 18dB±25KHz 21.400000 UM1 or UM5 2 21.400000 2x(UM1 or UM5) 4 3dB±3.75KHz 40dB±14KHz 3dB±7.5KHz 40dB±25KHz 21.400000 2x(UM1 or UM5) 4 3dB±7.5KHz 40dB±25KHz 45.000000 2x(UM1) 4
Insertion Loss Maximum 2dB 2dB 2dB 2dB 2dB 3dB 2dB 2dB 2dB 2dB 3dB
Passband Ripple Maximum 1dB 1dB 1dB 1dB 1dB 1dB 1dB 1dB 1dB 1dB
Coupling Capacitance
Termination Impedance
15pF 15pF 24pF 5.5pF 20pF 5pF 8pF
1000Ω//11.5pF 1500Ω//5.5pF 3000Ω//2.5pF 1500Ω//3.5pF 1500Ω//3.5pF 1000Ω//8.5pF 3000Ω//1.5pF 1500Ω//3.5pF 900Ω//5.4pF 1500Ω//2.5pF 800Ω//1.5pF
* Remarks : Please contact us for any further enquiry Specifications are subjected to change wi thout notice.
Dimensions
13.5 max.
HC 49/U
20.0 min.
11.2 max.
HC 49/T
20.0 min.
4.88
8.0 max.
7.8 max.
UM1
UM5
12.7 min.
±0.2
4.65 max.
7.8 max.
11.1 max.
11.1 max.
4.88 4.65 max.
±0.2
3.75 3.1 max.
±0.2
3.75
±0.2
3.1 max
unit : mm
HCJ Quartz (S) Pte Ltd. Alexandra Distripark, Block 2, #11-18, Pasir Panjang Road, Singapore 118481. Fax: 65-62786795 Tel: 65-62731088 E-mail:
[email protected]
Features MCF has high stability temperature characteristics and secular variation which is used in areas such as portable telephones, movable transmitter, receivers, etc. To understand the filter behavior, it is necessary to know the terms and definition and familiar with the typical filter amplitude frequency response curve.
Term Nominal Frequency (MHz), fo Passband width (dB) Stopband width (dB)
Definition The nominal value of center frequency between the high and low cut off frequencies of a filter. The difference between two frequencies in which the attenuation level is specified in the passband. The difference between two frequencies in which the attenuation level is specified in the stopband.
Insertion loss (dB)
The loss of power of the filter in the passband.
Passband Ripple (dB)
The difference between the maximum and minimum attenuation within a passband.
Attenuation (dB)
Reducing signal in transmission through a filter.
Spurious
The attenuation caused by unwanted response in the attenuation band.
