Zxczm800

Updated October 6, 2026

Overview

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53 来源

The ZXCZM800 is a specialized digital amplifier modulator chip that serves as the foundation for Direct Digital Feedback Amplifier (DDFA) technology. Originally developed by Zetex Semiconductors (later Diodes Inc. and then CSR/Qualcomm), it is most famous for its use in high-end NAD Electronics products, such as the NAD M2 and D7050 Manualslib Forum-Hifi.

Product Overview

The ZXCZM800 operates as a Digital-to-PWM modulator, typically paired with the ZXCZA200 feedback processor. Unlike traditional Class D amplifiers, this "Class Z" architecture maintains the signal in the digital domain until the output stage, effectively acting as a Power DAC Manualslib Hi-Fi-Forum.

* Key Specs: Supports up to 32-bit / 192 kHz input via I2S or TDM interfaces Forum-Hifi.

* Performance: Known for high damping factors and real-time digital error correction, which eliminates the "harshness" often associated with early digital amplification Manualslib.

Market Trends & Insights

The market for ZXCZM800 has shifted from a cutting-edge proprietary technology to a legacy component primarily available through electronic component distributors.

* Lifecycle Status: The ZXCZM800 was rebranded as the CSRA6601 after CSR acquired Zetex. While the technology is still relevant in high-fidelity circles, mainstream production has largely transitioned to newer Qualcomm DDFA platforms Everythingrf Head-Fi.

* Wholesale Availability: The chip remains available in the B2B market, with current prices on platforms like Alibaba ranging from $0.02 to $0.98 per unit depending on volume Alibaba.

* Consumer Shift: Modern trends in 2026 show a focus on AI-driven audio processing and hyper-personalization, though the demand for high-resolution "Direct Digital" hardware persists in niche audiophile markets Gwi Vibetric.

Sources & References

53 sources cited · Verified industry data & reports

NAD D7050 SERVICE MANUAL Pdf Download

ManualsLib

ZXCZM800 AMP BOARD Digital input: Digital input: Amplifier: Digital Digital Serial interface Serial interface filtering & delay filtering & delay audio & mix & ...

Classé Audio SIGMA 2200i

forum-hifi.fr

... ZXCZM800 (circuit ampli, capable de traiter sur ses i/f I2S ou TDM un signal jusqu'à 32bits/192 Khz) et un ZXCZA200 (Feedback processor).

판매리스트 : 네이버 블로그 - NAVER

블로그

... ZXCZM800 ZXCZM 800 ZETEX 1164. TAJD336K020RNJ TAJD 336K020RNJ AVX 500. MSC1937-01RS MSC 1937-01RS OKI SEMICONDUCTOR 1068. CY28349BOCT CY ...

Full Digital Amplifier (FDA)

Hi-Fi Forum

В DDA нет АЦП, но есть свои спец. чипы. Например, в наде м2 - ZXCZM800 - модулятор и ZXCZA200 - проц ОС. Но по итогу все это упирается в быстродействие силовой ...

PBU604 datasheets

DatasheetArchive

View results and find pbu604 datasheets and circuit and application notes in pdf format.

Всё о NAD MASTER и не только... - Страница 4

Soundex.ru

ZXCZM800, второй микросхемы из этого чипсета в виде ADC ZXCZA200 , этот набор микросхем становится усилителем M32.

Zxczm800

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