PCM3794 16 Bits Low Power Stereo Audio CODEC w/Microphone Bias Headphone & Speaker Amp
PCM3794 描述
The PCM3793/94 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 PCM3793/94 accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP, decoder, and 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 |
PCM3794 特性
- Analog Front End:
- Stereo Single-Ended Input With Multiplexer
- Mono Differential Input
- Stereo Programmable Gain Amplifier
- Microphone Boost Amplifier (20 dB) and Bias
- Analog BackEnd:
- Stereo/Mono Line Output With Volume
- Stereo/Mono Headphone Amplifier With Volume and Capless Mode
- Stereo/Mono Digital Speaker Amplifier (BTL) With Volume (PCM3794)
- Analog Performance:
- Dynamic Range: 93 dB (DAC)
- Dynamic Range: 90 dB (ADC)
- 40-mW + 40-mW Headphone Output at RL = 16 Ω
- 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
PCM3794 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 |
| PCM3794RHBR |
ACTIVE |
4.85 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
3794 |
| PCM3794RHBRG4 |
ACTIVE |
4.85 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
3794 |
| PCM3794RHBT |
ACTIVE |
5.30 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
3794 |
| PCM3794RHBTG4 |
ACTIVE |
5.30 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
3794 |
PCM3794 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 |
| PCM3794RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM3794RHBR |
| PCM3794RHBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM3794RHBRG4 |
PCM3794RHBRG4 |
| PCM3794RHBT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM3794RHBT |
| PCM3794RHBTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM3794RHBTG4 |
PCM3794RHBTG4 |
PCM3794 应用技术支持与电子电路设计开发资源下载
- PCM3794 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)
PCM3794 工具与软件
