AD1974 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD1974
Manufacturer

ADI
ChipWorker Part#

CW389438209
Description

4ADC with PLL, 192kHz, 24Bit ADC
Documentation

Datasheet

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AD1974 Specifications

Attribute	Attribute Value

Part Number	AD1974
Manufacturer	ADI
ChipWorker Part#	CW389438209
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The AD1974 is a high performance, single-chip ADC that provides 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 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 architectures from Analog Devices to further minimize EMI. By using 3.3 V supplies, power consumption is minimized, further reducing emissions.
**Applications**
* Automotive audio systems
* Home Theater Systems
* Set-top boxes
* Digital audio effects processors
### Features and Benefits
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
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
See data sheet for additional features

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