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DS4420

Maxim Integrated Products
Part Number DS4420
Manufacturer Maxim Integrated Products
Description I2C Programmable Gain Amplifier
Published Nov 11, 2006
Detailed Description www.DataSheet4U.com Rev 0; 9/06 I2C Programmable-Gain Amplifier for Audio Applications General Description The DS4420 i...
Datasheet PDF File DS4420 PDF File

DS4420
DS4420

Overview
www.
DataSheet4U.
com Rev 0; 9/06 I2C Programmable-Gain Amplifier for Audio Applications General Description The 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 I 2 C 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.
o Differential Inputs and Outputs o -35dB to +25dB Adjustable Gain o Low Output Noise o Low-Distortion Driving into a 50Ω Load o 3dB Gain Steps Programmed through I2C Interface o 5V Single Supply o 20kHz Bandwidth for All Gain Settings o Small 3mm x 3mm x 0.
8mm TDFN Package o Up to Eight DS4420s can be Placed on the Same I2C Bus Features DS4420 Applications Telephone Headsets Audio Volume Control Microphone Gain Control Pin Configuration TOP VIEW A2 A1 A0 SCL SDA VCC GND 1 2 3 4 14 13 12 11 AVCC OUT+ OUTAGND N.
C.
ININ+ Ordering Information PART DS4420+ TEMP RANGE -20°C to +70°C PIN-PACKAGE 14 TDFN-EP* + DS4420 TDFN (3mm x 3mm x 0.
8mm) MICROPR0CESSORCONTROLLED GAIN AUDIO SOURCE +Denotes lead-free package.
*EP = Exposed paddle.
5 6 7 10 9 8 Typical Operating Circuit VCC SDA SCL A2 A1 A0 GND AGND AVCC I2C INTERFACE OUT+ IN+ IN-35dB TO +25dB GAIN OUTAUDIO AMPLIFIER DS4420 ______________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.
maxim-ic.
com.
DataSheet 4 U .
com www.
DataSheet4U.
com I2C Programmable-Gain Amplifier for Audio Applications DS4420 ABSOLUTE MAXIMUM RATINGS Voltage on VCC, SDA, and SCL Relative to GND.
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.
.
-0.
5V to +6.
0V Voltage on A0, A1, an...


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