LT10.7MS2DP datasheet(13/48 Pages) TOKEN

13 / 48 page

Test Circuit

Characteristics

LT10.7M Ceramic Filters for FM Receiver

LT10.7MA5

LT10.7MS2

LT10.7MS3

Frequency(MHz)

10.3 10.5 10.7

11.1

10.9

10.3

10.5

10.7

10.9

11.1

③

①

②

S.S.G

V.M

Rg + R1 = R2 = 330 Ω

C = 10pF

Including stray capacitance and input capacitance of RF voltmeter

1. When using ceramic filters, it is most important to match the input/output load to impedance 330 ohm

(LT10.7MA19 is 470 ohm matching). Waveform symmetry is damaged when reactance is added to

the input/output load.

2. Two ceramic filters directly connected can be used for high selectivity. For reducing waveform

variation, it is recommended to input a buffer AMP between ceramic filters.

3. The LT10.7M series are of input/output symmetric structure so that in theory there is no input/output

directionality. Actual circuits may use different input/output loading conditions (for example,

mismatched impedance) or capacitance load. In such cases, the waveform will be a little changed by

the direction of the input/output of the ceramic filters.

TOKEN

11 of 46

Version 2010

http://www.token.com.tw/

rfq token.com.tw

LT10.7MS2DP Datasheet(PDF) 13 Page - Token Electronics Industry Co., Ltd.