AD1985JSTZ Analog Devices, AD1985JSTZ Datasheet

AD1985JSTZ

Manufacturer Part Number

AD1985JSTZ

Description

LQFP48

Manufacturer

Analog Devices

Datasheet

1.AD1985JSTZ-REEL.pdf (48 pages)

Specifications of AD1985JSTZ

Date_code

07+

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AD1985JSTZ

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Company:

Meier Automation Equipment Co., Limited

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AD1985JSTZ-REEL

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Quantity:

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AC ’97 2.3 COMPLIANT FEATURES

6 DAC channels for 5.1 surround

Greater than 90 dB dynamic range

20-bit resolution on all DACs

S/PDIF Output

Integrated stereo headphone amplifiers

Variable rate audio

Double rate audio (f

Line-level mono phone input

High quality CD mixer input

Selectable MIC input with preamp

AUX and line in stereo inputs

External amplifier power down (EAPD)

Power management modes

Jack sensing and peripheral enumeration/identification

48-lead LQFP package

Rev. A

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.

CENTER_OUT

SURR_OUT_R/

SURR_OUT_L/

LINE_OUT_R

LINE_OUT_L

MONO_OUT

HP_OUT_R

HP_OUT_L

PHONE_IN

LINE_IN_L

LINE_IN_R

LFE_OUT

CD_GND

AUX_R

AUX_L

CD_R

CD_L

MIC1

MIC2

DIFF AMP

= 96 kHz)

M M M

G = GAIN

A = ATTENUATION

M = MUTE

Z = HIGH Z

AD1985

FUNCTIONAL BLOCK DIAGRAM

Figure 1.

ENHANCED FEATURES

Integrated parametric equalizer (EQ)

Stereo microphone with preamplifiers

Integrated PLL for system clocking

Variable sample rate 7 kHz to 96 kHz

7 kHz to 48 kHz in 1 Hz increments

96 kHz for double rate audio

Advanced jack sense with auto topology switching

Software enabled V

Software enabled outputs for jack sharing

Auto down-mix and channel spreading

Microphone to mono output

Stereo microphone analog passthrough to outputs

Built-in stereo microphone and Center/LFE pin sharing

Selectable Center/LFE tip/ring swapping to support various

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

Tel: 781.329.4700

Fax: 781.326.8703

power amp

speaker products

REFOUT

GENERATOR

PCM FRONT

PCM C/LFE

PCM SURR

AC ’97 SoundMAX

ADC RATE

DAC RATE

Σ-∆ DAC

Σ-∆ ADC

Σ-∆ DAC

20-BIT

PC BEEP

PCM L/R

16-BIT

20-BIT

CODEC CORE

REF

REFERENCE

VOLTAGE

REFOUT

for microphones and external

XTL_OUT XTL_IN SPDIF_OUT

PLL

LOGIC

SLOT

EAPD

ADC

DAC

EAPD

JS0 JS1 JS2 JS3

REGISTERS

ANALOG MIXING

CONTROL

JACK SENSE

AC '97

CONTROL

SPDIF

www.analog.com

AD1985

Codec

ID0

ID1

RESET

SYNC

BITCLK

SDATA_OUT

SDATA_IN

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