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DS4420N+T&R
I2C Programmable-Gain Amplifier for Audio Applications
音频放大器 I2C Programmable Gain Amplifier
General Description
The DS4420N+T&R DS4420 is a fully differential, programmable-gain
amplifier for audio applications. It features a -35dB to
+25dB gain range controlled by an I2C interface and it
is optimized to drive loads as low as 50Ω. The gain is
adjustable in 3dB increments across the entire range.
Three address inputs, used to select the I2C slave
address, enable up to eight devices on a common bus.
The product operates from a single 5V supply over a
-20°C to +70°C temperature range. It is offered in a
3mm x 3mm TDFN package.
Features DS4420N+T&R
♦ Differential Inputs and Outputs
♦ -35dB to +25dB Adjustable Gain
♦ Low Output Noise
♦ Low-Distortion Driving into a 50Ω Load
♦ 3dB Gain Steps Programmed through I2C Interface
♦ 5V Single Supply
♦ 20kHz Bandwidth for All Gain Settings
♦ Small 3mm x 3mm x 0.8mm TDFN Package
♦ Up to Eight DS4420s can be Placed on the Same I2C Bus
Applications DS4420N+T&R
Telephone Headsets
Audio Volume Control
Microphone Gain Control
DS4420N+T&R
Maxim
Reel
2500
-20 ℃
70 ℃