1 Description
SS1311 是一款性能与功耗卓越、性价比极高的单声道音频编解码芯片。该芯片集成了信噪比高达 106dB 的 ADC 和 110dB
的 DAC，可满足高性能音频的应用需求。同时，它具有领先的低功耗水平，适合便携式、智能化、工业等广泛的应用。
SS1311 集成了低噪声 ALDO/DLDO，支持单电源供电，具备高性能抗混叠能力、工业/车规级 ESD，方便实现简洁、可靠的
方案。此外，它包含 0 至 42dB 模拟 PGA、AB 类耳机放大器，I2S 接口、数字麦克风接口、数字音量，以及先进的片上信
号处理单元，包括可编程均衡器（EQ）、动态范围压缩器（DRC）、HPF、音量淡入淡出等功能。它还内置了一个锁相环
（PLL），支持各种输入时钟，适应灵活、精准的频率应用要求。
2 FEATURES
Mono ADC Channel Power
- Performance: - Single Supply Operation: 1.8 V- 3.3 V
• SNR: 106 dB • Integrated Low Noise ALDO and DLDO
• THD+N: ‒92 dB - Low-Power Consumption
- Sample Rate (fs) = 8 KHz to 192 KHz • 5mW for Playback and Record
- Programmable PGA Gain from 0dB to 42dB Digital Interface
Mono DAC Channel - I2C Control Interface
- Performance: - I2S Audio Data Serial Interface
• SNR: 110 dB Flexible Features
• THD+N: ‒96 dB - Programmable PLL for Flexible Clocking
- Sample Rates (fs) = 8 KHz to 192 KHz - Digital Microphone Input Support
Digital Process Package
- Programmable IIR Filters for Noise Reduction - 3mm×3mm 20-Pin QFN
- HPF for ADC DC Remove
- 3 Band EQ 3 APPLICATIONS
- Dynamic Range Compressor (DRC) Music Player/Recorder
- Soft Volume Control/ Soft Mute IPC, DVR, NVR
Analog Input/Output IPC, DVR, NVR
- 1 Differential MIC Input Phone
- 1 Low Noise MIC Bias Output Toy
• from 1.8V to 2.5V Portable Devices
• 3.3 uVrms Noise between 20Hz-20KHz
- 1 Differential Line-out Output
• Support Single Mode
• Can Used as a Headphone Driver (9mW@
32Ω) without Pop Noise
4 BLOCK DIAGRAM
