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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The AD1939YSTZ is a 24-bit high-performance single-chip Codec provides four analog-to-digital converters (ADCs) with differential input and eight digital-to-analog converters (DACs) with differential output using the Analog Devices, Inc. patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1939 operates from 3.3V digital and analog supplies. The AD1939 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the master clock from the LR clock or from an external crystal, it eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architectures to further minimize EMI. By using 3.3V supplies, power consumption is minimized, further reducing emissions.
PLL generated clock or direct master clock
Low EMI design
Differential ADC input
Differential DAC output
Log volume control with auto ramp function
SPI controllable for flexibility
Software-controllable clickless mute

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AD1939YSTZ Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	64 Pin
Case/Package	LQFP-64
Frequency	192 kHz
Supply Voltage (DC)	3.30 V
Number of Positions	64 Position
Number of Bits	24 Bit
Power Dissipation	429 mW
Sample Rate	192 KSPS
Number of ADCs	4 ADC
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	429 mW
Number of Input Channels	4 Channel
Number of Output Channels	8 Channel
Number of DACs	8 DAC
Supply Voltage (Max)	5 V
Supply Voltage (Min)	3.3 V
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Size-Length	10 mm
Size-Width	10 mm
Size-Height	1.4 mm
Operating Temperature	-40℃ ~ 105℃
Product Lifecycle Status	Active
Packaging	Tray
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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