Datasheet

OPERATING CHARACTERISTICS
TPA2017D2
IN+
IN–
OUT+
OUT–
V
DD
V
DD
GND
C
I
C
I
Measurement
Output
+
+
–
–
Load
30kHz
Low-Pass
Filter
Measurement
Input
+
–
1 Fm
TPA2017D2
www.ti.com ..................................................................................................................................................................................................... SLOS584 – APRIL 2009
at T
A
= 25 ° C, V
DD
= 3.6V, EN = 1.3 V, R
L
= 8 Ω +33 µ H, and A
V
= 6 dB (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
k
SVR
power-supply ripple rejection ratio V
DD
= 3.6 Vdc with ac of 200 mV
PP
at 217 Hz – 68 dB
f
aud_in
= 1 kHz; P
O
= 550 mW; V
DD
= 3.6 V 0.1%
f
aud_in
= 1 kHz; P
O
= 1 W; V
DD
= 5 V 0.1%
THD+N Total harmonic distortion + noise
f
aud_in
= 1 kHz; P
O
= 630 mW; V
DD
= 3.6 V 1%
f
aud_in
= 1 kHz; P
O
= 1.4 W; V
DD
= 5 V 1%
N
r
Output integrated noise Av = 6 dB 44 µ V
Av = 6 dB floor, A-weighted 33 µ V
f Frequency response Av = 6 dB 20 20000 Hz
THD+N = 10%, V
DD
= 5 V, R
L
= 4 Ω 2.8 W
THD+N = 10%, V
DD
= 3.6 V, R
L
= 4 Ω 1.5 W
P
O(max)
Maximum output power
THD+N = 10%, V
DD
= 5 V, R
L
= 8 Ω 1.4 W
THD+N = 10% , V
DD
= 3.6 V, R
L
= 8 Ω 630 mW
THD+N = 1%, V
DD
= 3.6 V, R
L
= 8 Ω , P
O
= 0.63 W 90%
η Efficiency
THD+N = 1%, V
DD
= 5 V, R
L
= 8 Ω , P
O
= 1.4 W 90%
TEST SET-UP FOR GRAPHS
(1) All measurements were taken with a 1- µ F C
I
(unless otherwise noted.)
(2) A 33- µ H inductor was placed in series with the load resistor to emulate a small speaker for efficiency measurements.
(3) The 30-kHz low-pass filter is required, even if the analyzer has an internal low-pass filter. An RC low-pass filter (1 k Ω
4.7 nF) is used on each output for the data sheet graphs.
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