PCM3794A 16-Bit Low Power Stereo Audio CODEC w/Microphone Bias Headphone Digit Speakr Amp

PCM3794A 描述

The PCM3793A/94A is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793A/94A supports right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.

	PCM3793	PCM3793A	PCM3794	PCM3794A
SNR DAC / SNR ADC(Typ)(dB)	93 / 90	93 / 90	93 / 90	93 / 90
# DACs / # ADCs	2 / 2	2 / 2	2 / 2	2 / 2
# Inputs / # Outputs	6 / 5	6 / 5	6 / 3	6 / 3
Sampling Rate(Max)(kHz)	50	50	50	50
Resolution(Bits)	16	16	16	16
Digital Audio Interface	L, R, I2S, DSP	L, R, I2S, DSP	L, R, I2S, DSP	L, R, I2S, DSP
Control Interface	SPI, I2C	SPI, I2C	SPI, I2C	SPI, I2C
Analog Supply(V)	2.4 - 3.6	2.4 - 3.6	2.4 - 3.6	2.4 - 3.6
Digital Supply(V)	1.71 - 3.6	1.71 - 3.6	1.71 - 3.6	1.71 - 3.6
IO Supply (Volts)	1.71 - 3.6	1.71 - 3.6	1.71 - 3.6	1.71 - 3.6
Pd(Typ)(mW)	7	7	7	7
Additional Features	3D, EQ, Notch filters, ALC	3D, EQ, Notch filters, ALC	3D, EQ, Notch filters, ALC	3D, EQ, Notch filters, ALC
Operating Temperature Range(°C)		-40 to 85		-40 to 85
Pin/Package	32QFN	32QFN	32QFN	32QFN

PCM3794A 特性

Analog Front End:
- Stereo Single-Ended Input With Multiplexer
- Mono Differential Input
- Stereo Programmable Gain Amplifier
- Microphone Amplifier (20 dB) and Bias
Analog Back End:
- Stereo/Mono Line Output With Volume
- Stereo/Mono Headphone Amplifier With Volume and Capless Mode
- Stereo/Mono Digital Speaker Amplifier (BTL) With Volume
Analog Performance:
- Dynamic Range: 93 dB (DAC)
- Dynamic Range: 90 dB (ADC)
- 40-mW + 40-mW Headphone Output at RL = 16 Ohm
Power Supply Voltage
- 1.71 V to 3.6 V for Digital I/O Section
- 1.71 V to 3.6 V for Digital Core Section
- 2.4 V to 3.6 V for Analog Section
- 2.4 V to 3.6 V for Power Amplifier Section
Low Power Dissipation:
- 7 mW in Playback, 1.8 V/2.4 V, 48 kHz

PCM3794A 芯片订购指南

器件	状态	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
PCM3794ARHBR	ACTIVE	4.85 \| 1ku	QFN (RHB) \| 32	3000 \| LARGE T&R	3794A
PCM3794ARHBRG4	ACTIVE	4.85 \| 1ku	QFN (RHB) \| 32	3000 \| LARGE T&R	3794A
PCM3794ARHBT	ACTIVE	5.30 \| 1ku	QFN (RHB) \| 32	250 \| SMALL T&R	3794A
PCM3794ARHBTG4	ACTIVE	5.30 \| 1ku	QFN (RHB) \| 32	250 \| SMALL T&R	3794A

PCM3794A 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
PCM3794ARHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM		PCM3794ARHBR
PCM3794ARHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM3794ARHBRG4	PCM3794ARHBRG4
PCM3794ARHBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM		PCM3794ARHBT
PCM3794ARHBTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM3794ARHBTG4	PCM3794ARHBTG4

PCM3794A 应用技术支持与电子电路设计开发资源下载

PCM3794A 数据资料 dataSheet 下载.PDF
TI 德州仪器音频编解码器产品选型与价格参考 . xls
模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
所选封装材料的热学和电学性质 (PDF 645 KB)
高速数据转换 (PDF 1967 KB)
Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
Principles of Data Acquisition and Conversion (PDF 50 KB)
Interleaving Analog-to-Digital Converters (PDF 64 KB)
What Designers Should Know About Data Converter Drift (PDF 95 KB)
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)

PCM3794A 工具与软件

名称	型号	公司	工具/软件类型
音频的快速搜索选择工具	AUDIO_SELECTION_TOOL	Texas Instruments	免费评估工具
针对 Code Composer Studio 的 DCPFREETOOL 软件插件	DCPFREETOOL	Texas Instruments	实用程序/插件
PCM3794A 评估模块	PCM3794AEVM	Texas Instruments	开发电路板/EVM
用于音频转换器的软件驱动程序	CODECDRIVERS-SW	Texas Instruments	应用软件