TPA3121D2PWPR.B datasheet(4/34 Pages) TI2

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TPA3121D2

SLOS537B – MAY 2008 – REVISED JANUARY 2014

www.ti.com

DC CHARACTERISTICS

TA = 25°C, VCC = 24 V, RL =8Ω (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Class-D output offset voltage

| VOS |

(measured differentially in BTL

VI = 0 V, AV = 36 dB

7.5

mode as shown in Figure 36)

V(BYPASS)

Bypass output voltage

No load

AVCC/8

ICC(q)

Quiescent supply current

SD = 2 V, MUTE = 0 V, no load

ICC(q)

Quiescent supply current in

MUTE = 0.8 V, no load

mute mode

ICC(q)

Quiescent supply current in

SD = 0.8 V, no load

0.39

shutdown mode

rDS(on)

Drain-source on-state

450

210

Ω

resistance

GAIN0 = 0.8 V

GAIN1 = 0.8 V

GAIN0 = 2 V

Gain

GAIN0 = 0.8 V

GAIN = 2 V

GAIN0 = 2 V

Mute attenuation

VI = 1 Vrms

-75

AC CHARACTERISTICS

TA = 25°C, VCC = 24 V, RL = 8Ω (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VCC = 24, Vripple = 200 mVPP

100 Hz

–48

ksvr

Supply ripple rejection

Gain = 20 dB

1 kHz

–52

Output power at 1% THD+N

VCC = 24 V, f = 1 kHz

Output power at 10% THD+N

VCC = 24 V, f = 1 kHz

Total harmonic distortion +

f = 1 kHz, PO = 5 W

0.04%

THD+N

noise

125

μV

20 Hz to 22 kHz, A-weighted filter,

Output integrated noise floor

Gain = 20 dB

–78

dBV

Crosstalk

PO = 1 W, f = 1 kHz; gain = 20 dB

–70

Max output at THD+N < 1%, f = 1 kHz,

SNR

Signal-to-noise ratio

gain = 20 dB

Thermal trip point

150

°C

Thermal hysteresis

°C

fOSC

Oscillator frequency

250

300

350

kHz

Δt mute

Mute delay

Time from mute input switches high until

120

msec

outputs muted

Δt unmute

Unmute delay

Time from mute input switches low until

120

msec

outputs unmuted

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