參數(shù)資料
型號(hào): PI49FCT3806SE
廠商: Pericom
文件頁(yè)數(shù): 9/9頁(yè)
文件大小: 0K
描述: IC CLK BUFFER 1:5 50MHZ 20-SOIC
產(chǎn)品變化通告: Product Discontinuation Notice 29/May/2007
標(biāo)準(zhǔn)包裝: 38
系列: 49FCT
類型: 扇出緩沖器(分配)
電路數(shù): 2
比率 - 輸入:輸出: 1:5
差分 - 輸入:輸出: 無(wú)/無(wú)
輸入: CMOS,TTL
輸出: CMOS
頻率 - 最大: 50MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC
包裝: 管件
Technical Note
9/15
www.rohm.com
2010.10 - Rev.A
2010 ROHM Co., Ltd. All rights reserved.
BD3870FS,BD3871FS,BD3872FS,BD3873FS
C1
C2
R3
R4
IN
R1
+
-
R2
(Hz)
R4
R3
R2
C1C2
R4
R3
R1R2
2 π
1
f0
C2
C1
R1
R4
R3
R2
R1R2R4C1C2
Q
(dB)
1
C1
C2
R4
R3
R2
R1
R2R3
1
C1
C2
R4
R3
R2
R1
R4
R3
R2
20log
G(boost)
Description of operations
1) Bass filter
Using external components, center frequencies and Q factors of the bass characteristics are flexible
Fig.5
Standard values of R3, R4 (reference)
(R1=5.6k, R2=390k, C1=C2=0.1F)
Bass Boost Cut Amount
Resistance (k) * Typ.
R3
R4
0dB
77.64
0
2dB
58.90
18.73
4dB
44.02
33.60
6dB
32.20
45.42
8dB
22.82
54.80
10dB
15.36
62.26
12dB
9.44
68.18
14dB
4.78
72.84
* The actual boost cut amount may deviate from the standard values in some degree.
(
dB)
1
C1
C2
R4
R3
R2
R1
R4
R2(R3
1
C1
C2
R4
R3
R2
R1
R2R3
20log
cut
G
Fig.6
G
f
F0
G
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