PCM1870 具有麦克风偏置、ALC、声音效果、陷波滤波器的 90dB SNR 低功耗立体声音频 ADC
PCM1870 同类产品
- TLV320ADC3001 - With PLL, higher SNR, and more advanced filtering capabilities
- TLV320ADC3101 - With additional inputs, support for digital microphone, PLL, higher SNR and more advanced filtering capabilities
PCM1870 描述
The PCM1870 is a low-power stereo ADC designed for portable digital audio applications, with line-input amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto level control (ALC). It is available in 24-QFN (4-mm × 5-mm) and 24-DSBGA (2.49-mm × 3.49-mm) packages to save footprint. The PCM1870 accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a 2- or 3-wire serial control port.
|
PCM1870 |
PCM1870A |
TLV320ADC3001 |
TLV320ADC3101 |
| SNR(Typ)(dB) |
90 |
90 |
92 |
92 |
| # ADCs |
2 |
2 |
2 |
2 |
| # Inputs / # Outputs |
2 / 0 |
2 / 0 |
3 / Digital I/F |
6 / Digital I/F |
| Sampling Rate(Max)(kHz) |
50 |
50 |
96 |
96 |
| Resolution(Bits) |
16 |
16 |
24 |
24 |
| Digital Audio Interface |
L,R,I2S,DSP |
L,R,I2S,DSP |
L,R,I2S,DSP,TDM,PCM |
L,R,I2S,DSP,TDM,PCM |
| Control Interface |
I2C,SPI |
I2C,SPI |
I2C |
I2C |
| Analog Supply(V) |
2.4 - 3.6 |
2.4 - 3.6 |
2.7 - 3.6 |
2.7 - 3.6 |
| Digital Supply (up to 5 V)(V) |
1.71 - 3.6 |
1.71 - 3.6 |
1.525 - 1.95 |
1.525 - 1.95 |
| Pd(Typ)(mW) |
13 |
13 |
17 |
17 |
| Additional Features |
|
ALC, Sound Effect, Notch filter, Hi-Impedance mode on I2S |
Low-latency IIR linear-phase FIR filters Analog Mic support |
Low-latency IIR linear-phase FIR filters Digital and Analog Mic support |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
24DSBGA, 24VQFN |
24DSBGA |
16DSBGA |
24VQFN |
PCM1870 特性
- Analog Front End:
- Stereo Single End Input With MUX
- Mono Differential Input
- Stereo Programmable Gain Amplifier
- Microphone Boost Amplifier and Bias
- Analog Performances Dynamic Range: 90 dB
- 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
- Low Power Dissipation:
- 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo
- 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono
- 3.3 µW in All Power Down
- Sampling Frequency: 5 kHz to 50 kHz
- Auto Level Control for Recording
- Operation by Single Clock Input Without PLL
- System Clock: Common Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
- 2 (I2C) or 3 (SPI) Wire Serial Control
- Programmable Function by Register Control:
PCM1870 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| PCM1870RHFR |
ACTIVE |
|
1.70 | 1ku |
VQFN (RHF) | 24 |
3000 | LARGE T&R |
1870 |
| PCM1870RHFRG4 |
ACTIVE |
|
1.70 | 1ku |
VQFN (RHF) | 24 |
3000 | LARGE T&R |
1870 |
| PCM1870RHFT |
ACTIVE |
|
1.90 | 1ku |
VQFN (RHF) | 24 |
250 | SMALL T&R |
1870 |
| PCM1870RHFTG4 |
ACTIVE |
|
1.90 | 1ku |
VQFN (RHF) | 24 |
250 | SMALL T&R |
1870 |
| PCM1870YZFR |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
DSBGA (YZF) | 24 |
2000 | LARGE T&R |
PCM1870 |
| PCM1870YZFT |
ACTIVE |
-40 to 85 |
1.90 | 1ku |
DSBGA (YZF) | 24 |
250 | SMALL T&R |
PCM1870 |
PCM1870 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 |
| PCM1870RHFR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
PCM1870RHFR |
| PCM1870RHFRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
PCM1870RHFRG4 |
PCM1870RHFRG4 |
| PCM1870RHFT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
PCM1870RHFT |
| PCM1870RHFTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
PCM1870RHFTG4 |
PCM1870RHFTG4 |
| PCM1870YZFR |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
|
PCM1870YZFR |
| PCM1870YZFT |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
|
PCM1870YZFT |
PCM1870 应用技术支持与电子电路设计开发资源下载
- PCM1870 数据资料 dataSheet 下载.PDF
- TI 德州仪器音频模数转换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)
PCM1870 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 |
DCPFREETOOL |
Texas Instruments |
实用程序/插件 |
| MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design |
MDACBUFFERPRO |
Texas Instruments |
应用软件 |
