• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.

C31E.pdf

Mar.28,2011

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0

300

600

900

1200

1

10

100

1000

Frequency (MHz)

BLM18BD601SN1

BLM18AG601SN1

0

300

600

900

1200

1

10

100

1000

Frequency (MHz)

BLM18AG601SN1

BLM18BD601SN1

29.7cm

25MHz

OSC

74HC04

74HC04

74HC00

A type: Impedance curve rises from low frequency range. Suppress noise in wide frequency range.

B type: Impedance curve rises sharply. Less damage to signal waveforms.

cComparison of Impedance Curve

cComparison of Resistance Element

cComparison of Test Effect (25MHz)

Test Circuit

Waveform test point

1cm

Ferrite Bead

Pattern width 0.15cm

Line impedance 127

Ω

Both side glass epoxy PCB(

ε4.7)

All of back side is GND PCB thickness=0.6mm

BLM_B Series has less damage to high speed signal waveform.

Spectrum has been reduced from low

frequency range.

Noise frequency has been reduced without

reducing signals of low frequency.

Waveform

Spectrum

No filter

BLM18AG601SN1

BLM18BD601SN1 Small Distortion

BLp Series Introduction