參數(shù)資料
型號: SM5866AS
廠商: Seiko NPC Corporation
英文描述: D/A Converter for DSD and PCM
中文描述: D / A轉(zhuǎn)換為渠務(wù)署以及PCM
文件頁數(shù): 1/23頁
文件大?。?/td> 586K
代理商: SM5866AS
SM5866AS
NIPPON PRECISION CIRCUITS INC.—1
D/A Converter for DSD and PCM
OVERVIEW
The SM5866AS is a D/A converter compatible with
both the DSD SACD signal format and the PCM
CD/DVD-Audio and similar formats. DSD employs
a 1-bit data stream, from a high-order
at 64fs (fs = 44.1kHz), that contains high-level quan-
tization noise in the high-frequency band above
20kHz. The SM5866AS, in DSD reproduction, has a
DSD-dedicated FIR digital filter that attenuates the
Σ
conversion
DSD quantization noise in the digital domain, and
the resulting multi-level signal is D/A converted. In
PCM reproduction, an oversampled PCM signal
input, provided using a SM5847AF or similar digital
filter, is converted to a multi-level signal by the 3rd-
order noise shaper and then the multi-level signal is
D/A converted.
FEATURES
I
Mono-channel multi-level D/A converter
High performance analog characteristics
DSD mode (typical values)
- THD + N: –109dB (0.00036%)
- D.R: 115dB
PCM mode (typical values)
- THD+N: –106dB (0.00050%)
- D.R: 112dB
2 selectable DSD digital filters
PCM input mode
24-bit, MSB-first, right-justified
8-times or 4-times oversampling of fs = 16k to
192kHz
System clock (CKI)
Maximum operating frequency: f
37.0MHz (note 1)
45.4MHz (note 2)
DSD mode fs = f
CKI
/512
typ. fs = 44.1kHz
max. fs = 52.7kHz (note 1)
max. fs = 88.7kHz (note 2)
PCM mode system clock
192/256/384/512/768fs
Operating voltage: 4.5 to 5.5V
Operating temperature: –40 to 85
Package: 28-pin SOP
Molybdenum-gate CMOS process
I
I
I
I
CKI
(max)
I
I
I
I
°
C
I
I
(note 1) Under the operating conditions 1: 4.5 to 5.5V –40 to 85
(note 2) Under the operating conditions 2: 4.75 to 5.25V –40 to 70
°
C
°
C
ORDERING INFORMATION
PINOUT
(Top view)
PACKAGE DIMENSIONS
(Unit: mm)
Weight: 0.60g
Device
Package
SM5866AS
28-pin SOP
1
15
28
14
TSTN
TO
DVDD
SDI
SBCKA
SBCKD
RSTN
IMD1
IMD0
AVSSA
RA
IOUTA
IOUTAN
AVDDA
AVDDB
RB
IOUTB
IOUTBN
AVSSB
CVSS
CKI
DI
BCKI
WCKI
DVSS
BCPOL
DSPOL
CVDD
1.095TYP
18.7 ± 0.3
7
9
2
1.27
0.4 ± 0.1
0.12
M
0.10
0
0
0.15
0.05
0 to 10
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