TPA6139A2 Datasheet, PDF (5/22 Pages) Texas Instruments – DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain

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TPA6139A2
SLOS700B – 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
|V_OS|
PSRR
Output offset voltage
Power-supply rejection ratio
VDD = 3.3 V, input ac-coupled
V_OH
V_OL
Vuvp_on
High-level output voltage
Low-level output voltage
PVDD, under voltage detection
VDD = 3.3 V
VDD = 3.3 V
Vuvp_hysteresis PVDD, under voltage detection, hysteresis
Fcp
Charge pump switching frequency
|I_IH|
|I_IL|
I (VDD)
High-level input current, MUTE
Low-level input current, MUTE
Supply current, no load
VDD = 3.3 V, V_IH = VDD
VDD = 3.3 V, V_IL = 0 V
VDD, MUTE = 3.3 V
Supply current, MUTED
VDD = 3.3 V, MUTE = GND
Tsd
Thermal shutdown
Thermal shutdown hysteresis
P_O
Output Power, outputs in phase
THD+N = 1%, f = 1kHz, 32Ω load
THD+N = 1%, f = 1kHz, 32Ω load
V_O
Output Voltage, outputs in phase
THD+N = 1%, f = 1kHz, 600Ω load
THD+N
Total Harmonic distortion plus noise
f = 1kHz, 32Ω load, Po= 25mW, -1x
gain
THD+N
Total Harmonic distortion plus noise
f = 1kHz, 10kΩload, Vo=2 Vrms, -1x
gain
ΔA_V
Gain matching
Between left and right channels
Z_O
Output impedance when muted
MUTE = GND
Input to output attenuation when muted MUTE = GND
SNR
Signal to noise ratio
A-weighted, AES17 filter, 1Vrms ref
32Ω load, -1x gain
Signal to noise ratio
A-weighted, AES17 filter, 2Vrms ref
600Ω load, -1x gain
V_n
Noise voltage
Slew rate
A-weighted, AES17 filter, Gain=-2x
Gbw
Unity Gain bandwidth
Crosstalk
Channel to channel
f = 1kHz, Rload = 32Ω, Po= 25mW
Vincm_pos
Positive Common mode input voltage
Vincm_neg
Negative Common mode input voltage
I_lim
Output current limit
MIN TYP MAX UNIT
0.5
1 mV
70
80
dB
3.1
V
–3.05 V
2.8 V
200
mV
350
kHz
1 µA
1 µA
25
mA
25
mA
150
°C
15
°C
25
mW
0.9
2.0
V_rms
0.03%
0.005%
0.25
dB
1Ω
80
dB
99
dB
105
dB
12
µV
4.5
V/µs
8
MHz
–85
dB
+2.0
V
–2.0
V
60
mA
Copyright © 2011–2012, Texas Instruments Incorporated
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