PCM4104集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

PCM4104属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的PCM4104ADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

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.