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AD1940YSTZ

Name: AD1940YSTZ
Rating: 4.7 (12 reviews)

IC AUDIO 28BIT 192K 48LQFP

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Mfr。パート #AD1940YSTZ
パッケージ 48-LQFP
データシート AD1940YSTZ DataSheet
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仕様

Supplier	Rochester Electronics, LLC,Analog Devices Inc.
Package	Bulk,Tray
Series	SigmaDSP®
ProductStatus	Active
Type	Audio
NumberofChannels	4
Resolution(Bits)	28 b
SamplingRate(PerSecond)	192k
DataInterface	SPI
VoltageSupplySource	Single Supply
Voltage-Supply	2.25V ~ 2.75V
OperatingTemperature	-40°C ~ 125°C
MountingType	Surface Mount
Package/Case	48-LQFP

概要

Description

AD1940YSTZ is Analog Devices’ high‑performance stereo DAC (dual-channel) used in hi‑fi and professional audio gear. It uses a delta‑sigma (sigma‑delta) DAC architecture with a programmable digital filter to convert digital PCM data into analog signals.
Key points:
- Data support: PCM data up to 24 bits (typical for modern audio).
- Sample rates: designed for high‑quality audio up to around 192 kHz.
- Digital interface: supports standard audio formats (e.g., I2S, left-justified) for easy data input.
- Output: typically uses a current‑output DAC with an external I/V stage and reconstruction/anti‑aliasing filters.
- Packaging: YSTZ denotes a RoHS‑compliant package variant; exact package type and pins are specified in the datasheet.
Use cases include DAC sections in audio players, receivers, and professional audio equipment. For exact electrical specs, pinout, and operating conditions, refer to the ADI AD1940 datasheet corresponding to the YSTZ variant.

Features

Here are the typical features of the AD1940YSTZ (Analog Devices):
- Stereo, 24-bit DAC
- Supports up to high-resolution audio sample rates (up to 192 kHz)
- Multibit sigma-delta DAC architecture with integral digital filters
- Current-output DAC requiring an external I/V stage and op-amp
- On-chip digital filter options with selectable response
- Soft-mute, de-emphasis and other convenient control features
- Low distortion and high dynamic range (typical of audio DACs in this family)
- Single-supply operation (clinic for 5V style systems)
- Package: 8-pin YSTZ variant (leadframe/package code)
Note: For exact electrical specs (SNR, THD+N, distortion figures, power, and pinout), refer to the official AD1940YSTZ datasheet.

Package

AD1940YSTZ comes in a 28‑pin LQFP (Lead Quad Flat Pack) package, RoHS‑compliant.

Pinout

AD1940YSTZ is a 28‑pin package (lead count: 28, LQFP style). It is a stereo 24‑bit sigma‑delta digital‑to‑analog converter (DAC) with onboard reconstruction filters, providing analog outputs from a digital audio interface (I2S/left‑justified formats).

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
Company type: American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing (DSP) integrated circuits and sensors.

Application

Applications for AD1940YSTZ include:
- High‑fidelity stereo DACs in consumer hi‑fi and professional audio gear
- Digital‑to‑analog conversion in audio interfaces, mixers, recorders, and mastering/broadcast equipment
- Home theater components (CD/DVD/Blu‑ray players, AV receivers)
- Precision analog outputs for test, measurement, and development equipment

Equivalent

Direct one-to-one equivalents don’t exist for the AD1940YSTZ. For similar performance, consider:
- Analog Devices: AD1953/AD1955/AD1956 (24-bit stereo DACs up to 192 kHz)
- TI: PCM5100A/PCM5102A/PCM5242 (24-bit DACs, up to 192 kHz)
- Cirrus Logic: CS4344/CS4348/CS4398 (24-bit DACs, up to 192 kHz)
- Wolfson (Cirrus era): WM8740/WM8741
Verify I/O (I2S), word length, sample rate, power, and packaging with the cross-reference tool.