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LC78856 の電気的特性と機能
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LC78856のメーカーはSanyo Semicon Deviceです、この部品の機能は「Built-in Digital Filter D/A Converters for Digital Audio」です。 |
製品の詳細 ( Datasheet PDF )
| 部品番号 | LC78856 |
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| 部品説明 | Built-in Digital Filter D/A Converters for Digital Audio | ||
| メーカ | Sanyo Semicon Device | ||
| ロゴ |  |
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このページの下部にプレビューとLC78856ダウンロード（pdfファイル）リンクがあります。 Total 8 pages
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
1 Page  
Block Diagram
LC78856M, 78856V
Filter Characteristics
Standard Speed (de-emphasis off)
Double Speed (de-emphasis off)
No. 5128-3/8
3Pages 
LC78856M, 78856V
3. One-Bit D/A Converter Block
The 1-bit D/A converter accepts 8fs data input and outputs a 384fs 1-bit data stream.
LC78856M/V Inputs
1. Input Data Format
• Format 1 (MODE = high)
• Format 2 (MODE = low)
2. Control Signals (CNT1 to CNT3)
Symbol
CNT1
CNT2
CNT3
Function
Emphasis switching
Standard speed/double speed
Soft mute
L
Off
Standard speed
Off
H
On
Double speed
On
3. Initialization
The LC78856M and LC78856V requires initialization when power is first applied and when settings are changed.
The LC78856M and LC78856V is initialized by setting the RSTB pin low. The length of the low-level period must
extend 1 µs beyond the point where the XIN input is applied. When RSTB is low, all digital filter and noise shaper
internal data is set to 0, and the D/A converter outputs an analog 0.
No. 5128-6/8
6 Page | |||
| ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ LC78856 データシート.PDF ] | |
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
共有リンク
Link :| 部品番号 | 部品説明 | メーカ |
| LC78850 | Two-channel/16- and 18-bit D/A Converters for Digital Audio | Sanyo Semicon Device |
| LC78850Q | Two-channel/16- and 18-bit D/A Converters for Digital Audio | Sanyo Semicon Device |
| LC78855 | Digital Audio D/A Converter with Built-in Digital Filters | Sanyo Semicon Device |
| LC78855KM | Digital Audio D/A Converter with Built-in Digital Filters | Sanyo Semicon Device |