AK8125AV datasheet(7/9 Pages) AKM

Part #	AK8125AV

Description	EMI Countermeasure Spectrum Scan Diffusion IC

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Manufacturer	AKM [Asahi Kasei Microsystems]

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AK8125AV

MS1257-J-01

2011/03

- 7 -

３－６）周波数特性

VDD＝3.0～3.6V，Ta＝-40～85℃

項目

端子

MIN

TYP

MAX

単位

備考

6.10

8.32

F_SEL[1:0]=LL

7.80

10.40

F_SEL[1:0]=LM

9.36

12.48

F_SEL[1:0]=LH

12.48

16.64

F_SEL[1:0]=ML

15.60

20.80

F_SEL[1:0]=MM

18.72

24.96

F_SEL[1:0]=MH

24.96

33.28

F_SEL[1:0]=HL

31.20

41.60

F_SEL[1:0]=HM

入力周波数範囲

XIN

37.44

49.92

MHz

F_SEL[1:0]=HH

変調周波数

CKOUT

kHz

（*1）

-

1

-

OUTMPX=L

-

2

-

OUTMPX=M

出力逓倍

CKOUT

-

4

-

倍

OUTMPX=H,

（*2）

-

-0.25

-

SS_SEL[1:0]=LL

-

-0.5

-

SS_SEL[1:0]=LM

-

-1.5

-

SS_SEL[1:0]=LH

-

-3.0

-

SS_SEL[1:0]=ML

-

OFF

-

SS_SEL[1:0]=MM

-

±0.125

-

SS_SEL[1:0]=MH

-

±0.25

-

SS_SEL[1:0]=HL

-

±0.75

-

SS_SEL[1:0]=HM

周波数変調度

CKOUT

-

±1.5

-

%

SS_SEL[1:0]=HH

-0.18

SS_SEL[1:0]=LL, F_SEL0=L

-0.36

SS_SEL[1:0]=LM, F_SEL0=L

-0.90

SS_SEL[1:0]=LH, F_SEL0=L

-1.68

SS_SEL[1:0]=ML, F_SEL0=L

-0.19

SS_SEL[1:0]=LL, F_SEL0=M

-0.38

SS_SEL[1:0]=LM, F_SEL0=M

-0.91

SS_SEL[1:0]=LH, F_SEL0=M

-1.68

SS_SEL[1:0]=ML, F_SEL0=M

-0.20

SS_SEL[1:0]=LL, F_SEL0=H

-0.36

SS_SEL[1:0]=LM, F_SEL0=H

-0.92

SS_SEL[1:0]=LH, F_SEL0=H

ﾀﾞｳﾝｽﾌﾟﾚｯﾄﾞ時

平均周波数ず

れ（*3）

CKOUT

-1.68

%

SS_SEL[1:0]=ML, F_SEL0=H

（*1）変調周波数は入力周波数に依存します。

変調周波数

= 40.0kHz X 入力周波数（発振周波数）/ Max入力周波数MHz

例）

10.0MHz入力時： 40kHz x 10.0MHz / 10.4MHz = 38.46kHz

（*2）4 倍設定は、出力周波数が 99.84MHz 以下となる設定でご使用ください。

（*3）ダウンスプレッド時平均周波数は、|変調度|/2（%）より低くなります。

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