PCM4104PFBT屬于集成電路（IC）的ADC/DAC-特殊用途。由美國德州儀器公司制造生產(chǎn)的PCM4104PFBTADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對超聲或汽車雷達應(yīng)用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

FEATURES

Four High-Performance, Multi-Level,

Delta-Sigma Digital-to-Analog Converters

Differential Voltage Outputs

? Full-Scale Output (Differential): 6.15VPP

Supports Sampling Frequencies up to 216kHz

Typical Dynamic Performance (24-Bit Data)

? Dynamic Range (A-Weighted): 118dB

? THD+N: ?100dB

Linear Phase, 8x Oversampling Digital

Interpolation Filter

Digital De-Emphasis Filters for 32kHz,

44.1kHz, and 48kHz Sampling Rates

Soft Mute Function

? All-Channel Mute via the MUTE Input Pin

? Per-Channel Mute Available in Software

Mode

Digital Attenuation (Software Mode Only)

? Attenuation Range: 0dB to ?119.5dB

? 256 Steps with 0.5dB per Step

Output Phase Inversion (Software Mode Only)

Zero Data Mute (Software Mode Only)

Audio Serial Port

? Supports Left-Justified, Right-Justified,

I2S
, and TDM Data Formats

? Accepts 16-, 18-, 20, and 24-Bit Two’s

Complement PCM Audio Data

Standalone or Software-Controlled

Configuration Modes

Four-Wire Serial Peripheral Interface (SPI
)

Port Provides Control Register Access in

Software Mode

Power Supplies: +5V Analog, +3.3V Digital

Power Dissipation

? 203mW typical with fS = 48kHz

? 220mW typical with fS = 96kHz

? 236mW typical with fS = 192kHz

Power-Down Modes

Small 48-Lead TQFP Package

APPLICATIONS

Digital Mixing Consoles

Digital Audio Workstations

Digital Audio Effects Processors

Broadcast Studio Equipment

Surround-Sound Processors

High-End A/V Receivers

DESCRIPTION

The PCM4104 is a high-performance, four-channel

digital-to-analog (D/A) converter designed for use in

professional audio applications. The PCM4104 supports

16- to 24-bit linear PCM input data, with sampling

frequencies up to 216kHz. The PCM4104 features lower

power consumption than most comparable stereo audio

D/A converters, making it ideal for use in high channel

count applications by lowering the overall power budget

required for the D/A conversion sub-system.

The PCM4104 features delta-sigma architecture,

employing a high-performance multi-level modulator

combined with a switched capacitor output filter. This

architecture yields lower out-of-band noise and a high

tolerance to system clock phase jitter. Differential voltage

outputs are provided for each channel and are well-suited

to high-performance audio applications. The differential

outputs are easily converted to a single-ended output

using an external op amp IC.

The PCM4104 includes a flexible audio serial port

interface, which supports standard and time division

multiplexed (TDM) formats. Support for TDM formats

simplifies interfacing to DSP serial ports, while supporting

a cascade connection for two PCM4104 devices. In

addition, the PCM4104 offers two configuration modes:

Standalone and Software-Controlled. The Standalone

mode provides dedicated control pins for configuring a

subset of the available PCM4104 functions, while

Software mode utilizes a serial peripheral interface (SPI)

port for accessing the complete feature set via internal

control registers.

The PCM4104 operates from a +5V analog power supply

and a +3.3V digital power supply. The digital I/O is

compatible with +3.3V logic families. The PCM4104 is

available in a TQFP-48 package.