Sanyo LC78817 Specifications

CMOS LSI

Ordering number : EN*5107A

D3098HA (OT)/62295TH (OT) No. 5107-1/6

Preliminary

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TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

16-Bit D/A Converter for Digital Audio

LC78817, 78817M

Overview

The LC78817 and LC78817M are 16-bit CMOS D/A converters for use in digital audio systems. They adopt a dynamic level shifting conversion technique that uses a resistor string for the upper 8 bits, PWM for the middle 4 bits, and level shifting for the lower 4 bits.

Package Dimensions

unit: mm

3001B-DIP8

Features

• Support for twos complement data

• Two D/A converter channels on a single chip (synchronous outputs)

• Maximum conversion frequency: 192 kHz (supports 4× oversampling)

• On-chip output operational amplifiers

• No deglitching circuit required

• Si-gate CMOS process for low power dissipation

• Single 5 V power supply

• Low voltage operation (3.0 V) possible

unit: mm

3086A-MFP10S

0.55

1.8max

1.00.35

5.1

0.15

6.4

1.5

0.1

4.4

5.15 0.625

SANYO: MFP10S

[LC78817M]

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

max –0.3 to +7.0 V

Input voltage V

–0.3 to VDD+ 0.3 V

Output voltage V

OUT

–0.3 to VDD+ 0.3 V Operating temperature Topr –30 to +75 °C Storage temperature Tstg –40 to +125 °C

[LC78817]

SANYO: DIP8

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

0.5

9.4

1.4

6.4

7.62

0.25

3.0

3.9max

3.2

0.51min

0.89 2.54

Allowable Operating Ranges

DC Characteristics at Ta = –30 to +75°C, V

= 3.0 to 5.5 V, VSS= 0 V

AC Characteristics at Ta = –30 to +75°C, V

= 3.0 to 5.5 V, VSS= 0 V

Electrical Characteristics (1) at Ta = 25°C, V

= 5.0 V, GND = 0 V

Note: * Values in parentheses apply to the LC78817M

Test circuit: Use a circuit that conforms to the sample application circuit shown and a 176.4 kHz sampling frequency (Fs).

No. 5107-2/6

LC78817, 78817M

Parameter Symbol Conditions min typ max Unit

Supply voltage V

3.0 5.0 5.5 V

Operating temperature Topr –30 +75 °C

Parameter Symbol Conditions min typ max Unit

Input high level voltage V

2.2 V

Input low level voltage V

0.8 V

Parameter Symbol Conditions min typ max Unit

Clock pulse width T

BCW

BCLK 35 ns

Setup time T

LRCK, DATA 20 ns

Hold time T

LRCK, DATA 20 ns Rise time Tr BCLK, LRCK 30 ns Fall time Tf BCLK, LRCK 30 ns

Parameter Symbol Conditions min typ max Unit Resolution RES 16 bits Conversion frequency F

192 kHz Total harmonic distortion THD1 f = 1 kHz, 0 dB 0.09 % Dynamic range D

f = 1 kHz, –60 dB 94 96 dB Crosstalk C·T f = 1 kHz, 0 dB –85 dB Signal-to-noise ratio S/N JIS-A 96 100 dB Full-scale output voltage VFS 2.8 3.0 3.2 Vp-p Power dissipation Pd 30 45 mW Output load resistance R

* Pins 1 and 8 (1 and 10) 5 kΩ

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