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MIKROE-2563
17 g
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Mic click carries the SPQ0410HR5H-B surface mount silicon microphone with maximum RF protection.
The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over the AN pin on the mikroBUS™ line.
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Mic click carries the SPQ0410HR5H-B surface mount silicon microphone with maximum RF protection. The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over the AN pin on the mikroBUS™ line.
Mic clicks contains a silicon microphone, which outputs the signal to the analog pin (AN) on the mikroBUS™ line via the op amp.
The SPQ0410HR5H-B is a miniature, high-performance, low power, top port silicon microphone.
Using the SiSonic™ MEMS technology, the SPQ0410HR5H-B consists of an acoustic sensor, a low noise input buffer, and an output amplifier.
MaxRF protection prevents RF noise in traces from getting into the mic output.
TEST CONDITIONS: 23 ± 2C °, 55 ± 20 % R.H., VDD(min)<VDD(max), no load, unless otherwise indicated
Parameter | Symbol | Conditions | Min | Typ | Max | Units |
---|---|---|---|---|---|---|
Supply Voltage1 | VDD | 1.5 | 3.6 | V | ||
Supply Current1,2 | IDD | 120 | 160 | µA | ||
Sensitivity1 | S | 94 dB SPL @ 1kHz | -45 | -42 | -39 | dBV/Pa |
Signal to Noise Ratio | SNR | 94 dB SPL @ 1kHz, A-weighted | 59 | dB(A) | ||
Total Harmonic Distortion | THD | 94 dB SPL @ 1kHz, S=Typ, Rload>3kΩ | 1 | % | ||
Acoustic Overload Point | AOP | 10% THD @ 1 kHz, S=Typ, VDD=3.6V, Rload>3kΩ | 115 | dB SPL | ||
DC Output | VDD=1.5V | 0.73 | V | |||
Output impedance | ZOUT | @ 1 kHz | 400 | Ω | ||
Directivity | Omnidirectional | |||||
Polarity | Increasing sound pressure | Decreasing output voltage |
1100% tested.
2Maximum specifications are measured at maximum VDD. Typical specifications are measured at VDD=1.8V.
SPQ0410HR5H-B is an omnidirectional microphone. As the name implies an omnidirectional microphone can hear equally in all directions. So whichever way you hold it, up or down, it will work the same.
Type
Microphone
Applications
Processing audio with an MCU, mobile phones, smartphones, laptop computers, sensors, digital still cameras, portable music recorders, etc.
On-board modules
SPQ0410HR5H-B surface mount silicon microphone with maximum RF protection
Key Features
Omnidirectional, MaxRF protection, Sensitivity: -42 dBV/Pa
Interface
Analog
ClickID
No
Compatibility
mikroBUS
Click board size
S (28.6 x 25.4 mm)
Input Voltage
3.3V
This table shows how the pinout on Mic click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
Code examples for Mic click, written for MikroElektronika hardware and compilers are available on Libstock.
The following code snippet measures volume every 10 ms, and outputs measured data to a tft display.
01 void main() 02 { 03 uint16_t measuredValue; 04 05 systemInit (); 06 TFT_Set_Pen( CL_RED, 1 ); 07 while (1) 08 { 09 measuredValue = ADC1_Read(12); 10 y = measuredValue/30 + 71; 11 if (x !=0) 12 TFT_Line (x, y, oldx, oldy); 13 14 oldx = x; 15 oldy = y; 16 17 Delay_ms (10); 18 x++; 19 if (x==320) 20 { 21 x=0; 22 TFT_Set_Pen( CL_WHITE, 1 ); 23 TFT_Rectangle (0,71,320,219); 24 TFT_Set_Pen( CL_RED, 1 ); 25 } 26 } 27 }