規格
| 屬性 | 價值 |
| Supplier | Texas Instruments |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | ADC, Audio |
| Number of Channels | 2 |
| Resolution(Bits) | 24 b |
| Sampling Rate(Per Second) | 216k |
| Data Interface | PCM Audio Interface |
| Voltage Supply Source | Analog and Digital |
| Voltage - Supply | 2.4V ~ 4.2V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
PCM4222PFBR is a Texas Instruments PCM4222 24‑bit stereo digital‑to‑analog converter (DAC). It takes a digital audio stream (I2S, Left/Right‑justified, etc.) and produces two analog outputs. Designed for high‑quality audio front ends, it supports sample rates up to about 192 kHz and offers low noise and high dynamic range with low distortion (typical SNR well over 110 dB, THD+N very low at audio bands). Features often include soft mute and optional digital de-emphasis, plus compatibility with external references and a standard external analogue output stage. The PFBR suffix denotes a specific TI packaging variant for the device. For exact pinout, supply requirements, clocking, and application notes, consult the PCM4222 datasheet and TI product page.
Features
Here are typical features of the PCM4222PFBR (note: verify exact figures in the TI datasheet for your revision):
- 24-bit resolution with four differential input channels (simultaneous sampling)
- Fully differential analog inputs suitable for mic/line-level signals
- Internal reference with option for external reference
- Programmable input ranges/gain for flexible front-end
- Digital interface options: I2S, Left-Justified, Right-Justified (MSB aligned)
- Up to high sampling rates (often up to 192 kHz per channel; check datasheet for exact max)
- Low-noise, wide dynamic range audio ADC
- Power-efficient operation with separate analog/digital supplies and power-down mode
- Packaging: PFBR (Plastic Leaded Package, RoHS-compliant)
Usage: ideal for professional/audio capture, mixers, multi-channel data acquisition. For exact specs (SNR, THD+N, max sample rate, input ranges), please consult the current PCM4222PFBR datasheet.
- 24-bit resolution with four differential input channels (simultaneous sampling)
- Fully differential analog inputs suitable for mic/line-level signals
- Internal reference with option for external reference
- Programmable input ranges/gain for flexible front-end
- Digital interface options: I2S, Left-Justified, Right-Justified (MSB aligned)
- Up to high sampling rates (often up to 192 kHz per channel; check datasheet for exact max)
- Low-noise, wide dynamic range audio ADC
- Power-efficient operation with separate analog/digital supplies and power-down mode
- Packaging: PFBR (Plastic Leaded Package, RoHS-compliant)
Usage: ideal for professional/audio capture, mixers, multi-channel data acquisition. For exact specs (SNR, THD+N, max sample rate, input ranges), please consult the current PCM4222PFBR datasheet.
Pinout
- Pin count: 16 pins (PFBR indicates a 16‑pin VSSOP package).
- Function: PCM4222PFBR is a two-channel, 24‑bit stereo ADC. It converts two differential analog inputs (CH1 and CH2) to digital data and outputs a serial data stream via a digital interface (I2S/left-justified). Requires clocking (MCLK, BCLK, LRCLK/WS) and has standard control pins (RESET, power).
- Function: PCM4222PFBR is a two-channel, 24‑bit stereo ADC. It converts two differential analog inputs (CH1 and CH2) to digital data and outputs a serial data stream via a digital interface (I2S/left-justified). Requires clocking (MCLK, BCLK, LRCLK/WS) and has standard control pins (RESET, power).
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: American multinational semiconductor company that designs and manufactures semiconductors and software, specializing in analog/mixed-signal ICs and signal-processing products.
- What kind of company: American multinational semiconductor company that designs and manufactures semiconductors and software, specializing in analog/mixed-signal ICs and signal-processing products.
Application
PCM4222PFBR is a high‑performance 24‑bit, stereo ADC (up to 192 kHz) in PFBR package. Typical applications:
- Professional and project‑studio audio interfaces, mixers, and digital recorders
- Microphone preamp front‑ends and ADCs in DAW systems
- High‑end consumer/embedded audio devices and sound cards
- Teleconferencing, VoIP, and speech‑processing endpoints
- Audio measurement, calibration, and acoustic testing equipment
- Embedded systems and IoT devices requiring high‑fidelity stereo audio capture and digitization
- Professional and project‑studio audio interfaces, mixers, and digital recorders
- Microphone preamp front‑ends and ADCs in DAW systems
- High‑end consumer/embedded audio devices and sound cards
- Teleconferencing, VoIP, and speech‑processing endpoints
- Audio measurement, calibration, and acoustic testing equipment
- Embedded systems and IoT devices requiring high‑fidelity stereo audio capture and digitization
Package
VQFN-28 (5x5 mm), Pb-free package.
