Datasheet
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA2012D2
www.ti.com
.................................................................................................................................................. SLOS438D – DECEMBER 2004 – REVISED JUNE 2008
T
A
= 25 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Inputs ac grounded, A
V
= 6 dB,
|V
OO
| Output offset voltage (measured differentially) 5 25 mV
V
DD
= 2.5 to 5.5 V
PSRR Power supply rejection ratio V
DD
= 2.5 to 5.5 V – 75 – 55 dB
V
icm
Common-mode input voltage 0.5 V
DD
– 0.8 V
Inputs shorted together,
CMRR Common-mode rejection ration – 69 – 50 dB
V
DD
= 2.5 to 5.5 V
|I
IH
| High-level input current V
DD
= 5.5 V, V
I
= V
DD
50 µ A
|I
IL
| Low-level input current V
DD
= 5.5 V, V
I
= 0 V 5 µ A
V
DD
= 5.5 V, No load or output filter 6 9
V
DD
= 3.6 V, No load or output filter 5 7.5 mA
I
DD
Supply current
V
DD
= 2.5 V, No load or output filter 4 6
Shutdown mode 1.5 µ A
V
DD
= 5.5 V 500
r
DS(on)
Static drain-source on-state resistance V
DD
= 3.6 V 570 m Ω
V
DD
= 2.5 V 700
Output impedance in shutdown mode V
( SDR, SDL)
= 0.35 V 2 k Ω
f
(sw)
Switching frequency V
DD
= 2.5 V to 5.5 V 250 300 350 kHz
G0, G1 = 0.35 V 5.5 6 6.5
G0 = V
DD
, G1 = 0.35 V 11.5 12 12.5
Closed-loop voltage gain dB
G0 = 0.35 V, G1 = V
DD
17.5 18 18.5
G0, G1 = V
DD
23.5 24 24.5
T
A
= 25 ° C, R
L
= 8 Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 5.0 V, f = 1 kHz, THD = 10% 1.4
R
L
= 8 Ω
P
O
Output power (per channel) V
DD
= 3.6 V, f = 1 kHz, THD = 10% 0.72 W
R
L
= 4 Ω V
DD
= 5.0 V, f = 1 kHz, THD = 10% 2.1
P
O
= 1 W, V
DD
= 5 V, A
V
= 6 dB, f = 1 kHz 0.14%
THD+N Total harmonic distortion plus noise
P
O
= 0.5 W, V
DD
= 5 V, A
V
= 6 dB, f = 1 kHz 0.11%
Channel crosstalk f = 1 kHz – 85 dB
V
DD
= 5 V, A
V
= 6 dB, f = 217 Hz – 77
k
SVR
Supply ripple rejection ratio dB
V
DD
= 3.6 V, A
V
= 6 dB, f = 217 Hz – 73
CMRR Common mode rejection ratio V
DD
= 3.6 V, V
IC
= 1 V
pp
, f = 217 Hz – 69 dB
Av = 6 dB 28.1
Av = 12 dB 17.3
Input impedance k Ω
Av = 18 dB 9.8
Av = 24 dB 5.2
Start-up time from shutdown V
DD
= 3.6 V 3.5 ms
No weighting 35
V
DD
= 3.6 V, f = 20 to 20 kHz,
V
n
Output voltage noise µ V
Inputs are ac grounded, A
V
= 6 dB
A weighting 27
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