SM5877AM datasheet(15/16 Pages) NPC

Il numero della parte	SM5877AM

Spiegazioni elettronici	3rd-order , 2-channel D/A Converter

PDF	16 Pages

Scroll/Zoom	100%

Produttore elettronici	NPC [Nippon Precision Circuits Inc]

Homepage	http://www.npc.co.jp/en

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15 / 16 page

SM5877AM

NIPPON PRECISION CIRCUITS—15

Figure 2. Soft mute operation example

Gain

MUTE

1024/fs

0 dB

–

∞

TIMING DIAGRAMS

Input Timing (DI, BCKI, LRCI)

TYPICAL APPLICATIONS

Input Interface Circuits

Normal Speed

Figure 3. MUTEO output timing

LRCI

RSTN

MUTEO

2 /fs

Signal

No Signal

Initialize

BCKI

(64fs max)

LRCI

16 bits

1/fs

Left channel

Right channel

MSB

LSB

MSB

LSB

Sony

CXD2500

SM5877

PSSL

XTAI

LRCK

DA16

DA15

CKO

LRCI

BCKI

16.9344 MHz

44.1 kHz

2.1168 MHz

XTI

XTO

16.9344 MHz crystal

Inﬁnity-Zero (MUTEO)

The SM5877AM outputs an inﬁnity-zero detection

output signal under the following circumstances.

From immediately after a reset input on RSTN

until the initialization cycle ﬁnishes and the ﬁrst

data cycle occurs.

When an inﬁnity-zero occurs in the input data.

When an inﬁnity-zero is detected, a period of 214

× (1/fs) ≈ 0.37 seconds takes place before

MUTEO goes HIGH.

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