Overview
The FAN3852UC16X, produced by onsemi, is a highly integrated microphone pre-amplifier with a digital output. This device combines a pre-amplifier, a low drop-out regulator (LDO), and an analog-to-digital converter (ADC) to convert analog signals from Electret Condenser Microphones (ECM) into digital Pulse Density Modulation (PDM) data streams. This integration enhances noise rejection and simplifies the interface to mobile handset processors and other digital systems.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| VDD Supply Voltage Range | 1.64 | 1.80 | 3.63 | V |
| IDD Supply Current | - | 420 | - | μA |
| ISLEEP Sleep Mode Current | 1.50 | - | 8.0 | μA |
| SNR Signal-to-Noise Ratio | - | 62 | - | dB (A) |
| THD Total Harmonic Distortion | - | 0.02 | 0.20 | % |
| fCLK Input CLOCK Frequency | 1.0 | 2.4 | 4.0 | MHz |
| CIN Input Capacitance | - | 1.3 | - | pF |
| RIN Input Resistance | - | >10 | - | GΩ |
| Package Type | - | WLCSP-6 | - | - |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Optimized for mobile handset and notebook PC microphone applications
- Accepts input from Electret Condenser Microphones (ECM)
- Pulse Density Modulation (PDM) output
- Standard 5-wire digital interface
- Low input capacitance, high power supply rejection ratio (PSR), and a 20 kHz pre-amplifier
- Low-power 1.5 μA sleep mode and typical 420 μA supply current
- Integrated Low Drop-Out Regulator (LDO)
- Small 1.242 mm × 0.842 mm 6-ball, 0.400 mm pitch standard WLCSP package
- 1.5 kV HBM ESD on MIC input
Applications
- Electret Condenser Microphones with digital output
- Mobile handsets
- Headset accessories
- Personal computers (PCs)
Q & A
- What is the primary function of the FAN3852UC16X?
The FAN3852UC16X is a microphone pre-amplifier that converts analog signals from Electret Condenser Microphones (ECM) into digital Pulse Density Modulation (PDM) data streams.
- What is the supply voltage range for the FAN3852UC16X?
The supply voltage range is from 1.64 V to 3.63 V.
- What is the typical supply current of the FAN3852UC16X?
The typical supply current is 420 μA.
- What is the signal-to-noise ratio (SNR) of the FAN3852UC16X?
The SNR is 62 dB (A).
- What is the total harmonic distortion (THD) of the FAN3852UC16X?
The THD is 0.02% at 1 kHz input.
- What is the input clock frequency range for the FAN3852UC16X?
The input clock frequency range is from 1 MHz to 4 MHz.
- What type of package does the FAN3852UC16X come in?
The FAN3852UC16X comes in a 6-ball, 0.400 mm pitch standard WLCSP package.
- What are the typical applications of the FAN3852UC16X?
Typical applications include mobile handsets, headset accessories, and personal computers (PCs).
- How does the FAN3852UC16X handle power consumption in sleep mode?
In sleep mode, the FAN3852UC16X consumes less than 8.0 μA.
- What is the operating temperature range of the FAN3852UC16X?
The operating temperature range is from -40°C to 85°C.
