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| TPA2028D1_17 Datasheet, PDF (6/43 Pages) Texas Instruments – 3-W Mono Class-D Audio Amplifier With Fast Gain Ramp SmartGain AGC/DRC | |||
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TPA2028D1
SLOS660C â JANUARY 2010 â REVISED OCTOBER 2015
www.ti.com
Electrical Characteristics (continued)
at TA = 25°C, VDD = 3.6 V, SDZ = 1.3 V, and RL = 8 ⦠+ 33 μH (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
ZOUT
Output Impedance in shutdown
mode
EN = 0.35 V
2
kâ¦
Gain accuracy
Compression and limiter disabled, Gain = 0 to 30 dB â0.5
0.5 dB
PSRR Power supply rejection ratio
VDD = 2.5 V to 4.7 V
â80
dB
7.6 Operating Characteristics
at TA = 25°C, VDD = 3.6 V, EN = 1.3 V, RL = 8 ⦠+33 μH, and AV = 6 dB (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
kSVR power-supply ripple rejection ratio
VDD = 3.6 Vdc with ac of 200 mVPP at 217 Hz
faud_in = 1 kHz; PO = 550 mW; VDD = 3.6 V
THD+N Total harmonic distortion + noise
faud_in = 1 kHz; PO = 1.25 W; VDD = 5 V
faud_in = 1 kHz; PO = 710 mW; VDD = 3.6 V
faud_in = 1 kHz; PO = 1.4 W; VDD = 5 V
NfonF Output integrated noise
Av = 6 dB
NfoA Output integrated noise
Av = 6 dB floor, A-weighted
FR
Frequency response
Av = 6 dB
20
Pomax Maximum output power
η
Efficiency
THD+N = 10%, VDD = 5 V, RL = 8 â¦
THD+N = 10%, VDD = 3.6 V, RL = 8 â¦
THD+N = 1%, VDD = 5 V, RL = 8 â¦
THD+N = 1% , VDD = 3.6 V, RL = 8 â¦
THD+N = 1% , VDD = 5 V, RL = 4 â¦
THD+N = 10% , VDD = 5 V, RL = 4 â¦
THD+N = 1%, VDD = 3.6 V, RL = 8 â¦, PO= 0.71 W
THD+N = 1%, VDD = 5 V, RL = 8 â¦, PO = 1.4 W
TYP
â70
0.1%
0.1%
1%
1%
42
30
1.72
880
1.4
710
2.5
3
91%
93%
MAX
20000
UNIT
dB
μV
μV
Hz
W
mW
W
mW
W
W
7.7 I2C Timing Requirements
For I2C Interface Signals Over Recommended Operating Conditions (unless otherwise noted)
MIN TYP
fSCL
Frequency, SCL
No wait states
tW(H)
Pulse duration, SCL high
0.6
tW(L)
Pulse duration, SCL low
1.3
tSU(1)
Setup time, SDA to SCL
100
th1
Hold time, SCL to SDA
10
t(buf)
Bus free time between stop and start condition
1.3
tSU2
Setup time, SCL to start condition
0.6
th2
Hold time, start condition to SCL
0.6
tSU3
Setup time, SCL to stop condition
0.6
MAX
400
UNIT
kHz
μs
μs
ns
ns
μs
μs
μs
μs
6
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Product Folder Links: TPA2028D1
Copyright © 2010â2015, Texas Instruments Incorporated
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