AD1981BJST-REEL datasheet(1/32 Pages) AD

部品番号	AD1981BJST-REEL

部品情報	AC 97 SoundMAX Codec

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AC ’97 SoundMAX® Codec

AD1981B

Rev. C

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.326.8703

AC ’97 2.3 COMPATIBLE FEATURES

S/PDIF output, 20-bit data format, supporting

48 kHz and 44.1 kHz sample rates

Integrated stereo headphone amplifier

Variable sample rate audio

External audio power-down control

>90 dB dynamic range

Stereo full-duplex codec

20-bit PCM DAC

3 analog line-level stereo inputs for line-in, AUX, and CD

Mono line-level phone input

Dual MIC input with built-in programmable preamplifier

High quality CD input with ground sense

Mono output for speakerphone or internal speaker

power management support

48-lead LQFP package, Pb-free available

ENHANCED FEATURES

Stereo MIC preamplifier support

Built-in digital equalizer function for optimized

speaker sound

Full-duplex variable sample rates from 7040 Hz to

48 kHz with 1 Hz resolution

Jack sense pins for automatic output switching

Software-programmed VREFOUT output for biasing

microphone and external power amplifier

Split power supplies: 3.3 V digital and 5 V analog

Multiple codec configuration options

FUNCTIONAL BLOCK DIAGRAM

A

M

MIC1

MIC2

PHONE_IN

CD_L

CD_GND

CD_R

AUX_L

AUX_R

LINE_IN_L

MIC PREAMP

MONO_OUT

HP_OUT_L

HP

MZ

LINE_OUT_L

MZ

LINE_OUT_R

HP_OUT_R

HP

G = GAIN

A = ATTENUATION

M = MUTE

Z = HIGH Z

GA

PCM FRONT

DAC RATE

M

PCM L/R

ADC RATE

G

LINE_IN_R

CODEC CORE

EAPD

PLL

XTL_OUT XTL_IN SPDIF

SPDIF

TX

ID0

ID1

RESET

ADC

AND

DAC

SLOT

LOGIC

SYNC

BIT_CLK

SDATA_OUT

SDATA_IN

JS0

JS1

EAPD

AD1981B

G

A

M

A

M

GA

M

GA

M

GA

M

GA

M

GA

M

GA

M

GA

M

GA

M

GA

M

EQ

G

M

G

M

G

ANALOG MIXING

CONTROL LOGIC

AC '97

CONTROL

REGISTERS

VREFOUT

VREF

16-BIT

Σ-∆ ADC

16-BIT

Σ-∆ ADC

16-BIT

Σ-∆ ADC

16-BIT

Σ-∆ ADC

20-BIT

Σ-∆ DAC

20-BIT

Σ-∆ DAC

CD

DIFF AMP

VOLTAGE

REFERENCE

Figure 1.

同様の部品番号 - AD1981BJST-REEL

メーカー	部品番号	データシート	部品情報
Analog Devices	AD1981BJST-REEL	499Kb / 28P	AC ??7 SoundMAX Codec REV. B

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同様の説明 - AD1981BJST-REEL

メーカー	部品番号	データシート	部品情報
Analog Devices	AD1888	662Kb / 32P	AC 97 SoundMAX Codec REV. A
	AD1885	292Kb / 27P	AC 97 SoundMAX Codec REV. 0
	AD1887	160Kb / 16P	AC 97 SoundMAX Codec REV. 0
	AD1981A	188Kb / 24P	AC 97 SoundMAX Codec REV. 0
	AD1881JST	5Mb / 22P	AC 97 SoundMAX Codec REV. 0
	ADSP-1981BL	969Kb / 32P	AC 97 SoundMAX Codec REV. A
	AD1980JST-REEL	524Kb / 32P	AC 97 SoundMAX Codec REV. 0
	AD1886A	261Kb / 28P	AC 97 SoundMAX Codec REV. 0
	ADSP-1981BL	970Kb / 32P	AC 97 SoundMAX Codec REV. A
	AD1881A	261Kb / 26P	AC 97 SoundMAX Codec REV. 0

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