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Details for TPA6138A2PW by Texas Instruments
Semiconductors - ICs > Amplifiers & Comparators > Audio Amplifiers
AMP AUD HEADPHONE 25MW 14TSSOP
TPA6138A2PW image

TPA6138A2PW by Texas Instruments

AMP AUD HEADPHONE 25MW 14TSSOP
Features
Active Mute Control for Pop-Free Audio On/Off Control
Adjustable Gain by External Gain-Setting Resistors
Click- and Pop-Reduction Circuitry
Configurable as a Second-Order Low-Pass Filter u2013 Ideal for PWM Audio Sources
Differential Input and Single-Ended Output
External Undervoltage Mute
Ground-Referenced Outputs Eliminate DC- Blocking Capacitors u2013 Reduce Board Area u2013 Reduce Component Cost u2013 Improve THD+N Performance u2013 No Degradation of Low-Frequency Response Due to Output Capacitors
High SNR, >90 dB
Low DC Offset, <1 mV
Low THD+N < 0.01% at 10 mW Into 32 u2126
Short-Circuit Protection
Space-Saving TSSOP Package
Stereo DirectPathu2122 Headphone Amplifier u2013 40 mW Into 32 u2126 With 3.3-V Supply
Part Information
TPA6138A2PW image
RoHS Compliant
Description
The TPA6138A2 is a pop-free stereo headphone amplifier designed to allow the removal of the output dc-blocking capacitors for reduced component count and cost. The device is ideal for single-supply electronics where size and cost are critical design parameters. Designed using TI’s patented DirectPath™ technology, The TPA6138A2 is capable of driving 25 mW into a 32-Ω load with 3.3-V supply voltage. The device has differential inputs and uses external gainsetting resistors that supports a gain range of ±1 V/V to ±10 V/V. Gain can be configured individually for each channel. The device can also be configured as a second-order low-pass filter and is ideal for interfacing with PWM audio sources. Audio output compiles with ±8-kV IEC ESD protection, requiring just a simple resistor-capacitor ESD protection circuit. The TPA6138A2 has built-in active-mute control for pop-free audio on/off control. The TPA6138A2 has an external undervoltage detector that mutes the output when the power supply is removed, ensuring a popfree shutdown. Using the TPA6138A2 in audio products can reduce component count considerably compared to traditional headphone amplifiers. The TPA6138A2 does not require a split-rail power supply or a dc blocking capacitor. The TPA6138A2 integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free ground-biased audio signal. The TPA6138A2 is available in a 14-pin TSSOP.
Specifications
Amplifier Class:
-
No. of Channels:
2 Channel, 2Channels
Output Power:
40mW
Supply Voltage Range:
3V to 3.6V
Amplifier Case Style:
TSSOP
No. of Pins:
14Pins
Load Impedance:
32ohm
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Amplifer Supply Voltage:
3V to 3.6V
Base Number:
6138
Operating Temperature Range:
-40°C to +85°C
THD + N:
0.01% @ 10mW 32ohm VDD=3.3V
Alternate Descriptions
Texas Instruments,TPA6138A2PW,IC,Audio RS Components
AMP, AUD, HEADPHONE, 25MW, 14TSSOP; Output Power:40mW; Amplifier Class:-; No. of Channels:2 Channel; Supply Voltage Range:3V to 3.6V; Amplifier Case Style:TSSOP; No. of Pins:14Pins; Load Impedance:32ohm; Operating Temperature RoHS Compliant: Yes Newark Electronics
Audio Amp Headphone 2-CH Stereo 0.04W Class-AB 14-Pin TSSOP Bulk Avnet America
Audio Amp Headphone 2-CH Stereo 0.04W Class-AB 14-Pin TSSOP Bulk Avnet Europe