TPA6139A2
www.ti.com.cn
ZHCS031B –JANUARY 2011–REVISED JUNE 2012
ELECTRICAL CHARACTERISTICS
VDD = 3.3V, R
Load
= 32Ω, T
A
= 25°C, Charge pump: C
CP
= 1.0 μF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
|V
OS
| Output offset voltage VDD = 3.3 V, input ac-coupled 0.5 1 mV
PSRR Power-supply rejection ratio 70 80 dB
V
OH
High-level output voltage VDD = 3.3 V 3.1 V
V
OL
Low-level output voltage VDD = 3.3 V –3.05 V
Vuvp_on PVDD, under voltage detection 2.8 V
Vuvp_hysteresis PVDD, under voltage detection, hysteresis 200 mV
Fcp Charge pump switching frequency 350 kHz
|I
IH
| High-level input current, MUTE VDD = 3.3 V, V
IH
= VDD 1 µA
|I
IL
| Low-level input current, MUTE VDD = 3.3 V, V
IL
= 0 V 1 µA
I (VDD) Supply current, no load VDD, MUTE = 3.3 V 25 mA
Supply current, MUTED VDD = 3.3 V, MUTE = GND 25 mA
Tsd Thermal shutdown 150 °C
Thermal shutdown hysteresis 15 °C
P
O
Output Power, outputs in phase THD+N = 1%, f = 1kHz, 32Ω load 25 mW
THD+N = 1%, f = 1kHz, 32Ω load 0.9
V
O
Output Voltage, outputs in phase V
rms
THD+N = 1%, f = 1kHz, 600Ω load 2.0
Total Harmonic distortion plus noise f = 1kHz, 32Ω load, Po= 25mW, -1x 0.03%
THD+N
gain
Total Harmonic distortion plus noise f = 1kHz, 10kΩload, Vo=2 Vrms, -1x 0.005%
THD+N
gain
ΔA
V
Gain matching Between left and right channels 0.25 dB
Z
O
Output impedance when muted MUTE = GND 1 Ω
Input to output attenuation when muted MUTE = GND 80 dB
A-weighted, AES17 filter, 1Vrms ref
SNR Signal to noise ratio 99 dB
32Ω load, -1x gain
A-weighted, AES17 filter, 2Vrms ref 105
Signal to noise ratio dB
600Ω load, -1x gain
V
n
Noise voltage A-weighted, AES17 filter, Gain=-2x 12 µV
Slew rate 4.5 V/µs
Gbw Unity Gain bandwidth 8 MHz
Crosstalk Channel to channel f = 1kHz, Rload = 32Ω, Po= 25mW –85 dB
Vincm_pos Positive Common mode input voltage +2.0 V
Vincm_neg Negative Common mode input voltage –2.0 V
I
lim
Output current limit 60 mA
Copyright © 2011–2012, Texas Instruments Incorporated 5
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