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CJMCU-PAM8302A
5Pcs/1pc PAM8302 2.5W Class D Audio Power Amplifier PCM5102A MAX9813 MAX9814 MCP6022 Si4703 SI4713 INMP441 Microphone Module
5Pcs/1pc PAM8302 2.5W Class D Audio Power Amplifier PCM5102A MAX9813 MAX9814 MCP6022 Si4703 SI4713 INMP441 Microphone Module
Sale price
$51.63
Regular price
$137.68
SPECIFICATIONS
Application: Computer
Brand Name: EC Buying
CJMCU-470 Si4703 radio tuner: development board wireless FM radio module radio broadcast
CJMCU-622 MCP6022: MIC Silicon Microphone Sound Sensor Rail-to-Rail Operational Amplifier
CJMCU-9813 MAX9813H Microphone: Amplifier Fixed Gain Integrated Bias Module
CJMCU-PAM8302A PAM8302: Single Channel Audio Amplifier Class D 2.5W Audio Power Amplifier Module
CJMCU-TRRS 3.5mm audio jack: MP3 stereo headphone and microphone interface module
Condition: New
Dissipation Power: low
GY-SPH0645LM4H Digital Sound Sensor: I2S Interface MEMS Microphone Capsule
High-concerned chemical: None
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Mini FM wireless microphone: module Micro FM transmitter module serial port control
Operating Temperature: nromal
Origin: Mainland China
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Supply Voltage: -
TDA1308 Silicon Microphone Amplifier: Digital Microphone Amplifier Module Pickup Amplifier Board Class AB Stereo Headphone Driver Module
Type: Voltage Regulator
is_customized: Yes
CJMCU-PAM8302A
The PAM8302A module is a single-channel Class D 2.5W mono power amplifier with low total harmonic distortion + low noise (THD+N) performance for higher fidelity in audio amplification. The speaker can be driven directly with an efficiency of up to 88%. Short circuit protection and thermal protection, low static power consumption and low EMI
Parameter
Working voltage: 2-5.5V
2.5W output when driving 5V, driving 4Ω load 10% THD
Working temperature: -40~85 degree
Quiescent current <8mA
Frequency response range: 20~20KHz
Schematic
Vin: power supply pin, recommended 5V A+: audio signal differential input positive terminal
A-: Audio signal differential input load SD: Shutdown, active low
VO+: power amplification output positive terminal VO-: power amplification output positive terminal
CJMCU-5102
Product Features
The PCM5102 integrates a stereo analog-to-digital converter (DAC) for excellent dynamic performance and improved tolerance to clock jitter. With DirectPathTM charge pump technology, the PCM510xA device provides a 2.1 VRMS central ground output (designer does not need to be at the output) Connected to the DC-blocking capacitor) and an external mute circuit that is traditionally associated with a single-supply line driver. Integrated soft muting can also be hardware muted to achieve a 120dB mute signal-to-noise ratio (SNR). Each pin of the integrated line driver supports loads as low as 1kΩ, surpassing all other charge pump-based line drivers in performance. A high-performance integrated audio phase-locked loop (PLL) with BCK reference integrated on the device internally generates SCK, eliminating the need for a system clock (commonly referred to as the master clock) to achieve a 3-wire I2S connection and reduce System electromagnetic interference (EMI). Smart Clock Error and PowerSense Undervoltage Protection feature a two-layer system that eliminates clicks and pops. Compared to many traditional switched capacitor DAC architectures, out-of-band noise can be controlled to a low level of 20dB, reducing EMI and aliasing in downstream amplifiers/ADCs. When an error occurs in the clock and power system, the device automatically attenuates the data and starts the analog mute circuit.
Product Parameters
Module supply voltage: DC3.3V
Signal to noise ratio SNR: 112dB
Dynamic range: 112dB
Full-scale single-ended output: 2.1VRMS
Sampling frequency: 8KHz ~ 384KHz
Main clock frequency: 50MHz
Number of audio data: 16, 24, 32
Working environment temperature: -40 ° C ~ 85 ° C
Audio data format: IIS, left aligned
Total harmonic distortion (THD+N at -1dBFS): -93dB
Module size: 31.8mm*23.7mm*6.35mm, with a 3.5mm headphone holder
CJMCU-9813 MAX9813H Fixed Gain Integrated Bias Microphone Amplifier Module
Power supply: MAX9813H—4.5V to 5.5V
Extended temperature range: -40°C to +85°C
Product Description:
The MAX9812/MAX9813 are single/dual input, 20dB fixed-gain microphone amplifiers. They offer small package aging and low noise, integrated microphone bias, making them ideal for portable audio applications such as laptops, cell phones and PDAs. These amplifiers feature a 500kHz bandwidth, rail-to-rail output, industry-leading 100dB power supply rejection ratio and an extremely low 0.015% THD+N. Energy-saving features include an extremely low 230μA supply current and a total shutdown mode that reduces the combined supply and bias current to only 100n a. The MAX9812 is a single-pin 6-pin S amplifier. The C70 package (2mm x 2.1mm) and the MAX9813 are dual input amplifiers available in an 8-pin SOT23 (3mm x 3mm) package. The MAX9813 has two inputs that allow two microphones to be multiplexed into one output. The MAX9812/MAX9813 come in two grades. The MAX9812L/MAX9813L are optimized for 3.3V supply operation (2.7V to 3.6V). The MAX9812H/MAX9813H are PC2001 compliant and optimized for 5 volt operation (4.5 volts to 5.5 volts). Both devices are specified over the extended operating temperature range of -40 ° C to +85 ° C.
CJMCU-622 MCP6022
Parameter:
Voltage - Power: 3 V
Working temperature: -40 ° C ~ 85 ° C
Output method: simulation
Omni-directional, MaxRF protection, sensitivity: -42 dbv/pa
Application:
1.car
• Multipole active filter
• Audio processing
2.DAC buffer
•Test Equipment
•medical instruments
Description:
Microchip Technology Inc.'s MCPC6021, MCPC6021R, MCPC6022, MCPC6023, and MCPC6024 are high performance rail-to-rail input and output operational amplifiers. Key specifications include: wide bandwidth (10MHz), low noise (8.7nv/√hz), low input offset voltage and low distortion (0.00053% THD+N). The MCPC6023 also provides a chip select pin (CS) that provides power. Save costs when not in use. Single MCP6021 and MCP6021R are available in SOT-23-5. The single MCPC6021, single MCPC6023, and dual MCPC6022 have 8-lead PDIP, SOIC, and TSSOP. The extended temperature single MCP6021 is available in 8 lead MSOP. The quad-core MCPC6024 is available in 14-pin PDIP, SOIC and TSSOP packages. The MCPC6021/1R/2/3/4 series is available for industrial and extended temperature ranges. Power range from 2.5 volts to 5.5 volts
Typical Application:
CJMCU-470 Si4703
Product Features
The Si4703-C is a complete FM tuner receiver system from FM radio input to stereo output. A digital processor is integrated on-chip to handle the symbol decoding, block synchronization, error detection and error correction functions required by the Radio Data Broadcasting System (RBDS). The FM receiver uses a mixer to reduce the RF signal to a low intermediate frequency, thereby reducing the need for additional peripheral circuitry. The automatic frequency control (AFC) regulates the voltage controlled oscillator to generate quadrature local signals to the mixer, the quadrature mixer. The output is amplified, filtered and digitized by a high resolution analog to digital converter (ADC).
Digital Signal Processing (DSP) performs channel selection, FM demodulation, and stereo audio processing. The internal automatic gain (AGC) circuit provides higher sensitivity and greater noise immunity by controlling the gain of the low noise amplifier (LNA). The on-chip integrated LDO regulator can be connected directly to the battery. The headphone jack can be plugged into the earphone as an RF receive antenna.
This advanced architecture delivers superior performance compared to traditional analog architectures. The module also features a 150mW stereo power amplifier with thermal protection short-circuit protection and a 3.5mm headphone mount. Connected to a microcontroller to control volume, automatic manual search, software or hardware mute, measure signal strength.
Product Parameters
FM frequency range: 76 ~ 108MHz
Programmable de-emphasis (50us/70us)
Working temperature: -20 ° C ~ 85 ° C
Module operating voltage 3.3V
Communication interface: 3-wire system (maximum 2.5MHz), module default 2-wire system IIC (maximum 400KHz)
Instructions for Use
Note:
RST reset pin low active, SDIO data input and output pin, SCLK clock input pin, GPIO1 general IO, GPIO2 general IO, can be used to generate interrupts.
CJMCU-4713 SI4713
Pin Description:
LIN: Audio input, connected to the left channel of the headphones.
RIN: Audio input, connected to the right channel of the headphones.
Vin: The power supply voltage is 3-5VDC.
GND: Ground.
3V0: This is the regulator interface, connected to 3.3V, if you need 100mA of 3 volts, you can use this adjustment to adjust the voltage.
RST: Reset.
CS: Select pin for spi mode. The i2c address is determined. When connected high (default), the i2c address is 0x63. If grounded or shorted, the i2c address is 0x11.
SCL: Clock pin, connected to the microcontroller.
SDA: Data pin, connected to the microcontroller.
GPIO: Can be used to flash the LED, the initial state has been set, 3V output.
