TS472：Very low noise microphone preamplifier with 2.0V bias output with active low stdby mode
The TS472 is a differential-input microphone preamplifier optimized for high-performance PDA and notebook audio systems.
This device features an adjustable gain from 0 to 40 dB with excellent power-supply and commonmode rejection ratios. In addition, the TS472 has a very low noise microphone bias generator of 2 V.
It also includes a complete shutdown function, with active low standby mode.
Key Features
- Available in flip-chip lead-free package and in QFN24 4 x 4 mm package
- Low noise 2.0 V microphone bias output
- ESD protection (2 kV)
- 40 kHz bandwidth regardless of the gain
- Low distortion: 0.1% typ.
- Low noise: 10 nV/√Hz typ. equivalent input noise at F = 1 kHz
- 2.2 to 5.5 V single supply operation
- Fully-differential input/output
- Fast start up time at 0 dB: 5 ms typ.
- Active low standby mode function (1 μA max)
- Low power consumption at 20 dB: 1.8 mA
产品规格
| Description | Version | Size |
|---|---|---|
| DS4136: Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode | 6.1 | 687 KB |
应用手册
| Description | Version | Size |
|---|---|---|
| AN4598: Pre-amplifying the analog output of a MEMS microphone | 1.0 | 325 KB |
| AN2240: Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias | 4.2 | 236 KB |
简报
| Description | Version | Size |
|---|---|---|
| ST offering in Wearable - Analog and Mixed Signal Portfolio | 3.0 | 1 MB |
手册
| Description | Version | Size |
|---|---|---|
| ST’s solutions for mobile devices | 3.2 | 3 MB |
解决方案评估工具
| 型号 | 制造商 | Description |
|---|---|---|
| STEVAL-CCA023V1 | Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472 |
样片和购买
| 型号 | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|---|---|
| TS472IQT | VFQFPN2 24 4x4x1.0 | Tape And Reel | -40 | 85 | 0.763 | 1000 | NEC | EAR99 | PHILIPPINES |
| TS472EIJT | Chip Scale Package 0.5mm pitch | Tape And Reel | -40 | 85 | 0.63 | 1000 | NEC | EAR99 | CHINA |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| TS472IQT | VFQFPN2 24 4x4x1.0 | Industrial | Ecopack3 | |
| TS472EIJT | Chip Scale Package 0.5mm pitch | Industrial | Ecopack3 | md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2_signed.pdf md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2.xml |
- circuit_diagram_11015_thumbnail.png TS472
- Pre-amplifying the analog output of a MEMS microphone TS472
- Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias STEVAL-CCA023V1
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- md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2_signed.pdf TS472
- md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2.xml TS472
