SM5878AM datasheet(1/16 Pages) NPC

tên linh kiện	SM5878AM

Giải thích chi tiết về linh kiện	3rd-order , 2-channel D/A converter

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SM5878AM/AV

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

3rd-order

Σ∆, 2-channel D/A converter

OVERVIEW

The SM5878AM/AV is a 3rd-order

Σ∆, 2-channel

D/A converter LSI for digital audio reproduction

equipment.

It

also

incorporates

an

8-times

oversampling digital ﬁlter and analog, post-converter

lowpass ﬁlters.

The SM5878AM/AV has digital deemphasis ﬁlter,

attenuator, and soft mute circuits built-in. Double-

speed operation and low-voltage operation are also

supported.

SM5878AM/AV D/A converter incorporates 3rd-

order

∑∆ modulator and DEM (Dynamic Element

Mating) circuits for high performance, even in the

presence of clock jitter.

The SM5878AM/AV operates from a 4.5 to 5.5 V

supply, and is available in 24-pin SSOP or VSOPs.

FEATURES

s

4.5 to 5.5 V operating supply voltage range

s

44.1 kHz sampling frequency

s

Normal

(384fs)

and

double-speed

(192fs),

16.9344 MHz system clock

s

16.9344 MHz crystal oscillator circuits built-in

s

16-bit, MSB ﬁrst, rear-packed serial data input

format (

≤ 64fs bit clock)

s

8-times oversampling digital ﬁlter

• 32 dB stopband attenuation

• ±0.05 dB passband ripple

s

Deemphasis ﬁlter operation

• 36 dB stopband attenuation

•

−0.09 to +0.23 dB deviation from ideal

deemphasis ﬁlter characteristics

s

Attenuator

• 6-bit attenuator (64 steps)

• Soft mute function when MODE is HIGH

(approx. 1024/fs total muting time)

s

Built-in inﬁnity-zero detector

s

Σ∆ 2-channel D/A converter

• 3rd-order noise shaper

• 32fs oversampling (16fs for double-speed

mode)

s

2nd-order analog, post-converter lowpass ﬁlters

built-in

s

24-pin SSOP/VSOP

s

Molybdenum-gate CMOS process

PINOUT

ORDERING INFORMATIONS

DEVICE

PACKAGE

SM5878AM

24 - pin SSOP

SM5878AV

24 - pin VSOP

1

MUTE

2

DEEM

3

CKO

4

DVSS

5

BCKI

6

DI

7

DVDD

8

LRCI

9

TSTN

10

TO1

11

AVDDL

12

LO

13

AVSS

14

RO

15

AVDDR

16

MUTEO

17

XVDD

18

XTI

19

XTO

20

XVSS

21

DS

22

RSTN

23

MODE

24

ATCK

Số phần tương tự - SM5878AM

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