MX93002FC 데이터 시트보기 (PDF) - Macronix International

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MX93002FC

PCM CODEC

Macronix International 

MX93002

BASIC COMPONENTS REQUIRED

REFERANCE PART

DESCRIPTION

*R1

68KΩ the resistor for internal PLL charge pump circuits

R2

R3

R4, R5

2KΩ current limit resistor; to limit MIC bias current, please follow MIC specification

560KΩ ALC release time constant; see FIG. 10

to scale down DC power supply (VPOW) for reference to VCOMP to check power low

R6, R7

to scale down battery power (VBAT) for reference to VCOMP to check battery low

*C1

100pF the capacitor for internal PLL charge pump circuits

*C2

6pF the capacitor for internal PLL charge pump circuits

C8, C17

0.1uF DC blocking capacitor (0.1~10uF)

C11

0.22uF DC blocking capacitor (0.1~10uF); H.P.F.

3dB point : fc ¡ Ü1/2£ k∗ 4.4KΩ ∗ C6 (0.22uF) = 164Hz

C6

10uF DC offset canceling compensative capacitor (4.7~10uF, the larger the better)

C9

0.1uF DC offset canceling compensative capacitor (0.1~1uF, the larger the better)

C3, C4, C5,

C12, C16

0.1uF De-couple capacitor (0.1~10uF)

C15

0.1uF De-couple capacitor (0.01~10uF); see FUNCTIONAL DESCRIPTION

C10

10uF ALC attack time constant; see FIG. 9

*C7

C13, C14

5000pF anti-aliasing capacitor

passive L.P.F.; 3dB point : fc ¡ Ü1/2£ k∗ 3KΩ ∗ C13 (where C13 = C14)

*VR1

10KΩ to attenuate the input signal from SWH or SWF, if use digital volume control, then do

not need a resistor between VR and SPKP

@ where : " * " mark shows the requirement of the component can not be changed.

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