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AD1981A, AD1981AJ, AD1981AJST

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Info of AD1981A
Info of AD1981AJ
Info of AD1981AJST

AD1981A, AD1981AJ, AD1981AJST Selling Leads, Datasheet

MFG:Analog Devices Inc Category:Integrated Circuits (ICs) Package Cooled:PQFP D/C:09+

AD1981A, AD1981AJ, AD1981AJST Datasheet download

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Part Number: AD1981AJST

Category: Integrated Circuits (ICs)

MFG: Analog Devices Inc

Package Cooled: PQFP

D/C: 09+

Description: IC CODEC STEREO MICPREAMP 48LQFP

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AD1981A Parameters

AD1981A Features

Built-In Equalizer Function
Full Duplex Variable Sample Rates from 7040 Hz to 48 kHz with 1 Hz Resolution
Jack Sense Pins Provide Automatic Output Switching
Software Programmed VREFOUT Output for Microphones and External Power Amp

Mobile Low Power Mixer Mode
Extended 6-bit Master Volume Control
Extended 6-bit Headphone Volume Control
Digital Audio Mixer Mode
Split Power Supplies (3.3 V digital/5 V analog)

AD1981A General Description

AD1981A AC'97 SoundMAX® Codec

AD1981A Maximum Ratings

(TA = 25°C unless otherwise noted.)
Power Supplies
Digital (DVDD) . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +3.6 V
Analog (AVDD) . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6.0 V
Input Current (except Supply Pins) . . . . . . . . . . . . . . ±10 mA
Signals Pins
Digital Input Voltage . . . . . . . . . . . . . 0.3 V to DV_DD +0.3 V
Analog Input Voltage . . . . . . . . . . . . 0.3 V to AV_DD +0.3 V
Ambient Temperature Range (Operating) . . . . 0°C to 70°C

AD1981A Features

Built-In Equalizer Function
Full Duplex Variable Sample Rates from 7040 Hz to 48 kHz with 1 Hz Resolution
Jack Sense Pins Provide Automatic Output Switching
Software Programmed VREFOUT Output for Microphones and External Power Amp

Mobile Low Power Mixer Mode
Extended 6-bit Master Volume Control
Extended 6-bit Headphone Volume Control
Digital Audio Mixer Mode
Split Power Supplies (3.3 V digital/5 V analog)

AD1981A Typical Application

AD1981A: AC '97 SoundMAX® Codec Data Sheet (Rev. 0, 5/02)

AD1981AJST Parameters

Technical/Catalog Information	AD1981AJST
Vendor	Analog Devices Inc
Category	Integrated Circuits (ICs)
Type	Audio Codec '97
Number of ADCs / DACs	4 / 2
Dynamic Range, ADCs / DACs (db) Typ	85 / 90
S/N Ratio, ADCs / DACs (db) Typ	-
Resolution (Bits)	16, 20 b
Voltage - Supply, Analog	4.65 V ~ 5.25 V
Voltage - Supply, Digital	3.15 V ~ 3.45 V
Mounting Type	Surface Mount
Package / Case	48-LQFP
Packaging	Tray
Operating Temperature	0°C ~ 70°C
Sigma Delta	No
Interface	Serial
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	AD1981AJST AD1981AJST

AD1981AJST General Description

The AD1981AJST is a type of AC '97 soundmAX codec.

Features of the AD1981AJST are:(1)S/PDIF output, 20 bits data format, supporting:48 kHz and 44.1 kHz sample rates;(2)integrated stereo headphone amplifier;(3)variable sample rate audio;(4)external audio power-do wn control(5)greater than 90 dB dynamic range;(6)16-bit stereo full-duplex codec;(7)mono line-level phone input;(8)mono MIC input with built-in programmable preamp;(9)high quality CD input with ground sense.

Absolute ratings and specifications are comcluded as below:(1):power supplies(digital) is 0.3 V to +3.6 V,power supplies(analog) is 0.3 V to +6.0 V;(2):input current (except supply pins)is ±10 mA;(3):signals pins:digit al input voltage is0.3 V to DVDD +0.3 V,signals pins:analog input voltage is0.3 V to AVDD +0.3 V;(4):ambient temperature ranges from 0°C to 70°C;(5):storage temperature ranges from65°C to +150°C;Specificatio ns:(1):digital supply is 3.3V when calibrated;(2)analog supply is 5.0V of 0 dB gain/attenuation relative to full scale;(3):sample rate is 48kHz of 0 dB input;(4):input signal is 1008Hz of 10 k output load;(5):analog output pass band is 20Hz to 20 kHz of 32k output load.etc.

AD1981AJST Connection Diagram

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