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Specification
AudioOutputMode : Stereo
AudioOutputType : Speaker
Brand : DAOKI
BulletPoint1 : The MAX9814 is a high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA), output amplifier, microphone-bias-voltage generator and AGC control circuitry.
BulletPoint2 : The low-noise preamplifier has a fixed 12dB gain, while the VGA gain automatically adjusts from 20dB to 0dB, depending on the output voltage and the AGC threshold. The output amplifier offers selectable gains of 8dB, 18dB, and 28dB. With no compression, the cascade of the amplifiers results in an overall gain of 40dB, 50dB, or 60dB.
BulletPoint3 : A trilevel digital input programs the output amplifier gain. An external resistive divider controls the AGC threshold and a single capacitor programs the attack/release times.
BulletPoint4 : A trilevel digital input programs the ratio of attack-to-release time. The hold time of the AGC is fixed at 30ms. The low-noise microphone-bias-voltage generator can bias most electret microphones.
BulletPoint5 : The MAX9814 is available in the space-saving, 14-pin TDFN package. This device is specified over the -40°C to +85°C extended temperature range. MAX9814: Simplified Block Diagram MAX9814: Simplified Block Diagram Enlarge+.
BulletPoint6 :
Color : Blue
CompatibilityOptions : Car Phone, Bluetooth-enabled Devices
CompatibleDevices1 : Speaker
CompatibleDevices2 : Smartphone
ConnectivityProtocol : Vga
ConnectivityTechnology : Bluetooth
ConnectorType : Vga
ControlMethod : application
ExternallyAssignedProductIdentifier1 : 886769929284
ExternallyAssignedProductIdentifier2 : 0886769929284
HardwareInterface : bluetooth
IncludedComponents1 : MH02
IncludedComponents2 : Type-C USB Cable
IncludedComponents3 : Power Adapter
IncludedComponents4 : AC Cable
IncludedComponents5 : User Manual Warranty Card
InstallationType : wireless
InternationalProtectionRating : IP54
ItemName : DAOKI 2PCS Microphone Amplifier Board MAX9814 AGC Microphone Module Auto Gain Control for Arduino with Jump Wire
ItemPackageDimensions_Height : 15.2908 centimeters
ItemPackageDimensions_Length : 0.9906 centimeters
ItemPackageDimensions_Width : 5.8928 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : audio-component-amplifiers
Manufacturer : DAOKI
Material : Metal
MediaType : MP3, WAV
ModelName : LN-BT02
ModelNumber : DR-US-215
MountingType : Flush Mount
NumberOfBoxes : 1
NumberOfChannels : 2
NumberOfItems : 2
NumberOfPositions : 2
OperatingVoltage : 5.5 volts
OperationMode : Automatic,Automatically
OutputType : USB
PartNumber : DR-US-215
ProductDescription : Specification:
1. Supply Voltage/Current: 2.7v-5.5v / 3mA
2. Output: 2Vpp on 1.25V bias
3. Frequency Response: 20Hz - 20 KHz
4. Programmable Attack and Release Ratio
5. Automatic gain, selectable max from 40dB, 50dB or 60dB
6. Low Input-Referred Noise Density of 30nV/
7. Low THD: 0.04% (typ)

Package included:
2 x MAX9814 Microphone Amplifier Module
1 x 11.8" Male-Male Dupont Cables 10 PIN

ProductSiteLaunchDate : 2020-02-24T03:51:51.604Z
SafetyWarning : WARNING: Do not operate this device while driving to prevent distraction. Keep away from heat and moisture. Do not dispose of in fire. This device may interfere with other wireless devices if not used properly. Handle with care due to electrical hazards.
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
SupportedStandards : Bluetooth 4.0
SupportsBluetoothTechnology : 1
SwitchType : Temperature Switch
TerminalType : Through Hole
TunerTechnology : DAB
UnitCount : 2
UnspscCode : 39122200
Voltage : 12 volts_of_direct_current
WarrantyDescription : 1 YEAR WARRANTY
WirelessCommStandard : bluetooth