LC78856V 데이터시트 PDF

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Ordering number : EN*5128A

Preliminaly

CMOS LSI

LC78856M, 78856V

Built-in Digital Filter D/A Converters

for Digital Audio

Overview

The LC78856M and LC78856V are ∑∆-type digital-audio

D/A converter circuits with built-in digital filters.

Features

• 8× oversampling digital filter

• Digital de-emphasis (supports fs = 44.1 kHz)

• Soft muting

• Double speed support

• Support for a 384fs system clock

• PWM outputs

• 5 V single-voltage power supply

• Si-gate CMOS process

Package Dimensions

unit: mm

3091A-MFP28

[LC78856M]

unit: mm

3191-SSOP30

[LC78856V]

SANYO: MFP28

SANYO: SSOP30

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Maximum supply voltage

Maximum input voltage

Maximum output voltage

Operating temperature

Storage temperature

Symbol

VDD max

VIN max

VOUT max

Topr

Tstg

Conditions

Ratings

–0.3 to +7.0

–0.3 to VDD + 0.3

–0.3 to VDD + 0.3

–30 to +75

–40 to +125

Unit

V

V

V

°C

°C

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

53096HA (OT)/62095HA (OT) No. 5128-1/8

LC78856M, 78856V

Pin Assignments

No. 5128-4/8

LC78856M, 78856V

LC78856M/V Outputs

1. CKO

CKO outputs a clock signal with the same frequency as the signal input to the XIN pin.

2. MLO, MRO

These pins output a high level when either the attenuator coefficient has become 0, or when the corresponding

channel data has been 0 for 213 or more cycles.

3. OUTLA, OUTLB, OUTRA, OUTRB

These four pins produce outputs in synchronization with the XIN clock. High-precision analog signals can be

acquired by differentially amplifying the output signals and passing that result through an LPF. The figure below

shows a sample circuit structure.

Sample Output Circuit Structure

No. 5128-7/8

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