PCM1774 具有 HP 放大器的 93dB SNR 低功耗立体声 DAC（软件控制）
PCM1774 描述
The PCM1774 is a low-power stereo DAC designed for portable digital audio applications. The device integrates headphone amplifier, line amplifier, line input, boost amplifier, programmable gain control, analog mixing, and sound effects. It is available in a small-footprint, 4-mm × 4-mm QFN package. The PCM1774 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.
|
PCM1770 |
PCM1771 |
PCM1772 |
PCM1773 |
PCM1774 |
| SNR(Typ)(dB) |
98 |
98 |
98 |
98 |
93 |
| # DACs |
2 |
2 |
2 |
2 |
2 |
| # Inputs / # Outputs |
0 / 2 |
0 / 2 |
0 / 2 |
0 / 2 |
0 / 2 |
| Sampling Rate(Max)(kHz) |
48 |
48 |
48 |
48 |
50 |
| Resolution(Bits) |
24 |
24 |
24 |
24 |
16 |
| Digital Audio Interface |
L,R,I2S |
L,I2S |
L,R,I2S |
L,I2S |
L,R,I2S,DSP |
| Control Interface |
SPI |
H/W |
SPI |
H/W |
SPI, I2C |
| Analog Supply(V) |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
2.4 - 3.6 |
| Digital Supply (up to 5 V)(V) |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.6 - 3.6 |
1.71 - 3.6 |
| Pd(Typ)(mW) |
6.5 |
6.5 |
6.5 |
6.5 |
7 |
| Additional Features |
HP Out |
HP Out |
|
|
Headphone, Mix |
| Operating Temperature Range(°C) |
0 to 70 |
0 to 70 |
0 to 70 |
0 to 70 |
-40 to 85 |
| Pin/Package |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
16TSSOP, 20VQFN |
20QFN |
PCM1774 特性
- Analog Front End:
- Stereo Single-Ended Input
- Microphone Amplifier (12 dB, 20 dB)
- Analog Back End:
- Stereo/Mono Line Output With Volume
- Stereo/Mono Headphone Amplifier With Volume
- Analog Performance:
- Dynamic Range: 93 dB
- 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:
- 6.4 mW in Playback, 1.8 V/2.4 V, 44.1 kHz
- 3.3 µW in Power Down
- Sampling Frequency: 5 kHz to 50 kHz
- Operation From a Single Clock Input Without PLL
- System Clock:
PCM1774 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 |
| PCM1774RGPR |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
VQFN (RGA) | 20 |
3000 | LARGE T&R |
1774 |
| PCM1774RGPRG4 |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
VQFN (RGA) | 20 |
3000 | LARGE T&R |
1774 |
| PCM1774RGPT |
ACTIVE |
-40 to 85 |
1.65 | 1ku |
VQFN (RGA) | 20 |
250 | SMALL T&R |
1774 |
| PCM1774RGPTG4 |
ACTIVE |
-40 to 85 |
1.65 | 1ku |
VQFN (RGA) | 20 |
250 | SMALL T&R |
1774 |
PCM1774 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 |
| PCM1774RGPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
PCM1774RGPR |
| PCM1774RGPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
PCM1774RGPRG4 |
PCM1774RGPRG4 |
| PCM1774RGPT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
PCM1774RGPT |
| PCM1774RGPTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
PCM1774RGPTG4 |
PCM1774RGPTG4 |
PCM1774 应用技术支持与电子电路设计开发资源下载
- PCM1774 数据资料 dataSheet 下载.PDF
- TI 德州仪器音频数模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)
PCM1774 工具与软件
