Datasheet > AD1974_13

AD1974_13

更新时间： 2024-11-26 01:18:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	392K
描述
4 ADC with PLL

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AD1974_13 数据手册

4 ADC with PLL,

192 kHz, 24-Bit ADC

AD1974

Data Sheet

FEATURES

GENERAL DESCRIPTION

Phase-locked loop generated or direct master clock

Low EMI design

107 dB dynamic range and SNR

−94 dB THD + N

Single 3.3 V supply

Tolerance for 5 V logic inputs

The AD1974 is a high performance, single-chip ADC that pro-

vides four analog-to-digital converters (ADCs) with differential

inputs using the Analog Devices, Inc. patented multibit sigma-

delta (Σ-Δ) architecture. An SPI port is included, allowing a

microcontroller to enable mutes and adjust many other

parameters. The AD1974 operates from 3.3 V digital and analog

supplies. The AD1974 is available in a single-ended output

48-lead L QF P.

Supports 24 bits and 8 kHz to 192 kHz sample rates

Differential ADC input

SPI®-controllable for flexibility

Software-controllable clickless mute

Software power-down

Right justified, left justified, I²S, and TDM modes

Master and slave modes up to 16-channel input/output

Available in a 48-lead LQFP

The AD1974 is designed for low EMI. This consideration is

apparent in both the system and circuit design architectures.

By using the on-board phase-locked loop (PLL) to derive the

master clock from the LR clock or from an external crystal,

the AD1974 eliminates the need for a separate high frequency

master clock and can also be used with a suppressed bit clock.

The ADCs are designed using the latest continuous time archi-

tectures from Analog Devices to further minimize EMI. By

using 3.3 V supplies, power consumption is minimized, further

reducing emissions.

Qualified for automotive applications

APPLICATIONS

Automotive audio systems

Home Theater Systems

Set-top boxes

Digital audio effects processors

FUNCTIONAL BLOCK DIAGRAM

DIGITAL AUDIO

INPUT/OUTPUT

AD1974

SERIAL DATA PORT

SDATA

OUT

ADC

QUAD

DEC

FILTER

ADC

ANALOG

AUDIO

INPUTS

CLOCKS

48kHz/

96kHz/192kHz

TIMING MANAGEMENT

AND CONTROL

(CLOCK AND PLL)

CONTROL PORT

SPI

PRECISION

VOLTAGE

REFERENCE

12.48MHz

CONTROL DATA

INPUT/OUTPUT

Figure 1.

Rev. D

Document Feedback

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

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

Technical Support

www.analog.com

12 3 4 5 6 7...24

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与AD1974_13相关器件

型号	品牌	获取价格	描述	数据表
AD1974WBSTZ	ADI	获取价格	4 ADC with PLL
AD1974WBSTZ-RL	ADI	获取价格	4 ADC with PLL, 192 kHz, 24-Bit ADC
AD1974YSTZ	ADI	获取价格	4 ADC with PLL, 192 kHz, 24-Bit Codec
AD1974YSTZ-RL	ADI	获取价格	4 ADC with PLL, 192 kHz, 24-Bit Codec
AD1980	ADI	获取价格	SigmaDSP⑩ 3-Channel, 26-Bit Signal Processing
AD1980JST	ADI	获取价格	AC ’97 SoundMAX Codec
AD1980JST-REEL	ADI	获取价格	AC 97 SoundMAX Codec
AD1980JST-REEL	ROCHESTER	获取价格	SPECIALTY CONSUMER CIRCUIT, PQFP48, 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48
AD1980JSTZ	ADI	获取价格	IC SPECIALTY CONSUMER CIRCUIT, PQFP48, 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48, Consum
AD1980JSTZ-REEL	ROCHESTER	获取价格	SPECIALTY CONSUMER CIRCUIT, PQFP48, 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48

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