TPA6132A2 Datasheet, PDF (6/22 Pages) Texas Instruments – 25-mW DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION

TPA6132A2
SLOS597 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
OPERATING CHARACTERISTICS
V_DD = 3.6 V , T_A = 25°C, R_L = 16 Ω (unless otherwise noted)
PARAMETER
TEST CONDITIONS
P_O
Output power⁽¹⁾ (Outputs in phase)
THD = 1%, f = 1 kHz
THD = 1%, f = 1 kHz, R_L = 32 Ω
V_O
Output voltage⁽¹⁾ (Outputs in phase)
THD = 1%, V_DD = 3.6 V, f = 1 kHz, R_L = 100 Ω
G0 = 0 V, G1 = 0 V, (–6 dB)
G0 ≥ 1.3 V, G1 = 0 V, (0 dB)
A_V
Closed-loop voltage gain (OUT / IN–)
G0 = 0 V, G1 ≥ 1.3 V, (3 dB)
G0 ≥ 1.3 V, G1 ≥ 1.3 V, (6 dB)
ΔA_v
Gain matching
Between Left and Right channels
G0 = 0 V, G1 = 0 V, (–6 dB)
Input impedance (per input pin)
R_IN
G0 ≥ 1.3 V, G1 = 0 V, (0 dB)
G0 = 0 V, G1 ≥ 1.3 V, (3 dB)
G0 ≥ 1.3 V, G1 ≥ 1.3 V, (6 dB)
Input impedance in shutdown
(per input pin)
EN = 0 V
V_CM
Input common-mode voltage range
Output impedance in shutdown
EN = 0 V
Input-to-output attenuation in shutdown EN = 0 V
k_SVR AC-power supply rejection ratio
THD+N Total harmonic distortion plus noise⁽²⁾
SNR
E_n
f_osc
t_ON
Signal-to-noise ratio
Noise output voltage
Charge pump switching frequency
Start-up time from shutdown
Crosstallk
Thermal shutdown
200 mV_pp ripple, f = 217 Hz
200 mV_pp ripple, f = 10 kHz
P_O = 20 mW, f = 1 kHz
P_O = 25 mW into 32 Ω, V_DD = 5.5 V, f = 1 kHz
P_O = 20 mW; G0 ≥ 1.3 V, G1 = 0 V, (A_V = 0 dB)
A-weighted
P_O = 20 mW, f = 1 kHz
Threshold
Hysteresis
(1) Per output channel
(2) A-weighted
MIN
–0.45
–0.95
–1.36
–1.95
TYP
25
22
1.1
–0.5
–1.0
–1.41
–2.0
1%
26.4
19.8
16.5
13.2
MAX
–0.55
–1.05
–1.46
–2.05
UNIT
mW
V_RMS
V/V
kΩ
10
–0.5
50
80
-100
-90
0.02%
0.01%
100
5.5
1200 1275
5
–80
150
20
1.5
1350
V
Ω
dB
dB
dB
µV_RMS
kHz
ms
dB
°C
°C
6
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