Overview
The PCM4104PFBT is a high-performance, four-channel digital-to-analog (D/A) converter designed by Texas Instruments for professional audio applications. It supports 16- to 24-bit linear PCM input data with sampling frequencies up to 216kHz. The device features lower power consumption compared to most comparable stereo audio D/A converters, making it ideal for high channel count applications by reducing the overall power budget required for the D/A conversion sub-system. The PCM4104PFBT employs delta-sigma architecture with a high-performance multi-level modulator and a switched capacitor output filter, resulting in lower out-of-band noise and high tolerance to system clock phase jitter.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16- to 24-bit |
| Sampling Frequency | Up to 216kHz |
| Full-Scale Output (Differential) | 6.15VPP |
| Dynamic Range (A-Weighted) | 118dB |
| THD+N | -100dB |
| Power Supplies | +5V Analog, +3.3V Digital |
| Power Dissipation | 203mW (fS = 48kHz), 220mW (fS = 96kHz), 236mW (fS = 192kHz) |
| Package | 48-Lead TQFP |
| Data Formats | Left-Justified, Right-Justified, I2S, and TDM |
| Configuration Modes | Standalone and Software-Controlled |
Key Features
- Four High-Performance, Multi-Level, Delta-Sigma Digital-to-Analog Converters
- Differential Voltage Outputs
- Linear Phase, 8x Oversampling Digital Interpolation Filter
- Digital De-Emphasis Filters for 32kHz, 44.1kHz, and 48kHz Sampling Rates
- Soft Mute Function and All-Channel Mute via the MUTE Input Pin
- Per-Channel Mute Available in Software Mode
- Digital Attenuation (Software Mode Only): 0dB to -119.5dB, 256 Steps with 0.5dB per Step
- Output Phase Inversion and Zero Data Mute (Software Mode Only)
- Audio Serial Port Supporting Left-Justified, Right-Justified, I2S, and TDM Data Formats
- Four-Wire Serial Peripheral Interface (SPI) Port for Control Register Access in Software Mode
- Power-Down Modes
Applications
- Digital Mixing Consoles
- Digital Audio Workstations
- Digital Audio Effects Processors
- Broadcast Studio Equipment
- Surround-Sound Processors
- High-End A/V Receivers
Q & A
- What is the maximum sampling frequency supported by the PCM4104PFBT?
The PCM4104PFBT supports sampling frequencies up to 216kHz. - What are the power supply requirements for the PCM4104PFBT?
The device operates from a +5V analog power supply and a +3.3V digital power supply. - What data formats does the PCM4104PFBT support?
The PCM4104PFBT supports Left-Justified, Right-Justified, I2S, and TDM data formats. - What is the dynamic range of the PCM4104PFBT?
The dynamic range is 118dB (A-Weighted). - Does the PCM4104PFBT have mute functions?
Yes, it has a soft mute function and all-channel mute via the MUTE input pin, as well as per-channel mute available in software mode. - How does the PCM4104PFBT configure its functions?
The device offers two configuration modes: Standalone and Software-Controlled, with the latter using a four-wire SPI port for accessing control registers. - What is the typical power dissipation of the PCM4104PFBT?
The typical power dissipation is 203mW at fS = 48kHz, 220mW at fS = 96kHz, and 236mW at fS = 192kHz. - In what package is the PCM4104PFBT available?
The PCM4104PFBT is available in a 48-Lead TQFP package. - What are some common applications of the PCM4104PFBT?
Common applications include digital mixing consoles, digital audio workstations, digital audio effects processors, broadcast studio equipment, surround-sound processors, and high-end A/V receivers. - Does the PCM4104PFBT support digital attenuation?
Yes, it supports digital attenuation in software mode, with a range of 0dB to -119.5dB in 256 steps of 0.5dB each.
