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PDF LPF0428X Data sheet ( Hoja de datos )
| Número de pieza | LPF0428X | |
| Descripción | Analog Low Pass Filter | |
| Fabricantes | Samsung Semiconductor | |
| Logotipo |  |
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LPF0428X
ANALOG LOW PASS FILTER
GENERAL DESCRIPTION
lpf0428x is developed for analog conversion of PWM input and analog low pass filtering function for audio signal
processing. The core consists of D-F/F and active R-C analog filter. And it has analog 2.3 volts supply operation.
FEATURES
— Analog 2.3Volt Operation
— 2'nd Order Low Pass Filter
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— On chip common level generator
APPLICATIONS
— Audio Signal Player
FUNCTIONAL BLOCK DIAGRAM
IM D Q
C
K
IP D Q
CK
AOUT
CK
VCOM
PDL
VDDAL VSSAL
VDDA
VSSA
VBBA
Ver 1.3 (Nov 2001)
This datasheet is a preliminary version. No responsibility is assumed by SEC for its use nor for any infringements
of patents or other rights of third parties that may result from its use. The content of this datasheet is subject to
change without any notice.
1
1 page  
LPF0428X
TIMING DIAGRAM
CK
PWM Data
www.DataSheet4U.com(IP or IM)
Tsui Thdi
ANALOG LOW PASS FILTER
Fck
'H' 'L'
McDuty
Parameter
Data Setup Time
Data Hold Time
CK Clock frequency
CK Duty ratio
Symbol
Tsui
Thdi
Fck
McDuty
min typ max
- 20 -
- 20 -
- 16.9344 -
- 50 -
Units
ns
ns
MHz
%
FUNCTION DESCRIPTION
Power Down
PDL control the power down function of lpf0428x.
PDL
L
H
Function
Power Down
Digital inputs (CK, IP, IM) is blocked by nand gate
Normal Operation
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LPF0428X.PDF ] | |
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