SM5866AS Datasheet

IC型號：
SM5866AS
PDF描述：
D/A Converter for DSD and PCM
文件大?。?/label>
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芯片廠家：
NPC

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SM5866AS

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

鈭單?/div>

conversion

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 鏗乴ter that attenuates the

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

鏗乴ter, is converted to a multi-level signal by the 3rd-

order noise shaper and then the multi-level signal is

D/A converted.

FEATURES

PINOUT

(Top view)

Mono-channel multi-level D/A converter

High performance analog characteristics

鈥?DSD mode (typical values)

- THD + N: 鈥?09dB (0.00036%)

- D.R: 115dB

鈥?PCM mode (typical values)

- THD+N: 鈥?06dB (0.00050%)

- D.R: 112dB

2 selectable DSD digital 鏗乴ters

PCM input mode

鈥?24-bit, MSB-鏗乺st, right-justi鏗乪d

鈥?8-times or 4-times oversampling of fs = 16k to

192kHz

System clock (CKI)

Maximum operating frequency: f

CKI

(max)

鈥?37.0MHz (note 1)

鈥?45.4MHz (note 2)

DSD mode fs = f

CKI

/512

鈥?typ. fs = 44.1kHz

鈥?max. fs = 52.7kHz (note 1)

鈥?max. fs = 88.7kHz (note 2)

PCM mode system clock

鈥?192/256/384/512/768fs

Operating voltage: 4.5 to 5.5V

Operating temperature: 鈥?0 to 85

擄

Package: 28-pin SOP

Molybdenum-gate CMOS process

TSTN

DVDD

SDI

SBCKA

SBCKD

RSTN

BCKI

WCKI

DVSS

BCPOL

DSPOL

CVDD

IMD1

IMD0

AVSSA

IOUTA

IOUTAN

AVDDA

AVDDB

IOUTB

IOUTBN

AVSSB

CVSS

CKI

PACKAGE DIMENSIONS

(Unit: mm)

Weight: 0.60g

0.15

鈭?/div>

0 .1

.05

7.5 鹵 0.2

Device

SM5866AS

Package

28-pin SOP

2.2 鹵 0.1

1.27

0.4 鹵 0.1

0.10

0.12

NIPPON PRECISION CIRCUITS INC.鈥?

0.05 鹵 0.05

ORDERING INFORMATION

1.095TYP

18.7 鹵 0.3

0 to 10

0.5 鹵 0.2

(note 1) Under the operating conditions 1: 4.5 to 5.5V, 鈥?0 to 85

擄

(note 2) Under the operating conditions 2: 4.75 to 5.25V, 鈥?0 to 70

擄

9.9 鹵 0.3

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