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SM5841H

Description
audio multi-function digital filter
File Size164KB,20 Pages
ManufacturerNPC
Websitehttp://www.npc.co.jp/en/
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SM5841H Overview

audio multi-function digital filter

SM5841H
NIPPON PRECISION CIRCUITS INC.
Audio Multi-function Digital Filter
OVERVIEW
The SM5841H is an 8-times oversampling (interpo-
lation) digital filter for digital audio reproduction
equipment. It accepts 16 or 18-bit input data, and
outputs data in 16, 18 or 20-bit format, making a
wide range of interfaces possible. It also features
digital deemphasis for 3 sampling frequencies, a
noise shaper to reduce quantization noise, a DC off-
set output and other circuits.
ORDERING INFOMATION
Device
SM5841HP
SM5841HS
Package
18pin DIP
22pin SOP
FEATURES
Functions
s
s
s
s
s
s
s
s
s
s
s
s
2-channel processing
8-times (8fs) oversampling (interpolation)
Digital deemphasis (fs = 48/44.1/32 kHz)
Serial input data
2s complement, MSB first, 16/18-bit
Serial output data
2s complement, MSB first, 16/18/20-bit
1st-order noise shaper (for 16/18-bit output only)
256fs/384fs system clock selectable
Output data DC offset (approximately 0.8%)
ON/OFF control
TTL-compatible input/outputs
5 V (standard) supply
3.2 V operating voltage
Molybdenum-gate CMOS
Filter Characteristics
s
s
s
3-stage DC FIR interpolation filter
1st stage (fs
2fs), 69-tap
2nd stage (2fs
4fs), 13-tap
3rd stage (4fs
8fs), 9-tap
IIR deemphasis filter for gain and phase character-
istics close to those of analog filters
Overflow limiter built-in
APPLICATIONS
s
s
s
s
s
Digital amplifiers
CD players
DAT players
DBS systems
PCM systems
NIPPON PRECISION CIRCUITS—1

SM5841H Related Products

SM5841H SM5841HP SM5841HS
Description audio multi-function digital filter audio multi-function digital filter audio multi-function digital filter
Is it Rohs certified? - incompatible incompatible
Maker - NPC NPC
package instruction - DIP, DIP18,.3 SOP, SOP22,.3
Reach Compliance Code - unknown unknown
JESD-30 code - R-PDIP-T18 R-PDSO-G22
JESD-609 code - e0 e0
Number of terminals - 18 22
Maximum operating temperature - 80 °C 80 °C
Minimum operating temperature - -20 °C -20 °C
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - DIP SOP
Encapsulate equivalent code - DIP18,.3 SOP22,.3
Package shape - RECTANGULAR RECTANGULAR
Package form - IN-LINE SMALL OUTLINE
power supply - 3.3/5 V 3.3/5 V
Certification status - Not Qualified Not Qualified
Maximum slew rate - 40 mA 40 mA
surface mount - NO YES
technology - CMOS CMOS
Temperature level - COMMERCIAL EXTENDED COMMERCIAL EXTENDED
Terminal surface - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form - THROUGH-HOLE GULL WING
Terminal pitch - 2.54 mm 1.27 mm
Terminal location - DUAL DUAL
uPs/uCs/peripheral integrated circuit type - DSP PERIPHERAL, DIGITAL FILTER DSP PERIPHERAL, DIGITAL FILTER
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