Datasheet Texas Instruments TPA6135A2RTER — 数据表

TPA6135A2
www.ti.com . SLOS623A – FEBRUARY 2009 – REVISED APRIL 2009 DIRECTPATH™ Stereo Headphone Amplifier
With Differential Input and HI-Z Mode
FEATURES 1 Patented DirectPathв„ў Technology Eliminates
Need for DC-Blocking Capacitors
– Outputs Biased at 0 V
– Excellent Low Frequency Fidelity Active Click and Pop Suppression HI-Z Output Mode 2.1 mA Typical Supply Current Fully Differential or Single-Ended Inputs
– Built-In Resistors Reduces Component
Count
– Improves System Noise Performance Constant Maximum Output Power from 2.3 V
to 5.5 V Supply
– Simplifies Design to Prevent Acoustic
Shock Improved RF Noise Immunity MicrosoftTM Windows VistaTM Compliant High Power Supply Noise Rejection
– 100 dB PSRR at 217 Hz
– 90 dB PSRR at 10 kHz Wide Power Supply Range: 2.3 V to 5.5 V Gain Settings: 0 dB and 6 dB Short-Circuit and Thermal-Overload Protection ±8 kV HBM ESD Protected Outputs Small Package Available
– 16-Pin, 3 mm × 3 mm Thin QFN
23 DESCRIPTION
The TPA6135A2 (sometimes referred to as TPA6135)
is a DirectPathв„ў stereo headphone amplifier that
eliminates the need for external dc-blocking output
capacitors. Differential stereo inputs and built-in
resistors set the device gain, further reducing external
component count. Gain is selectable at 0 dB or 6 dB. …