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TAS5342A

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SLAS623A – NOVEMBER 2008 – REVISED NOVEMBER 2016

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Copyright © 2008–2016, Texas Instruments Incorporated

(1)

SNR is calculated relative to 0-dBFS input level.

(2)

Actual system idle losses are affected by core losses of output inductors.

6.6

Audio Specifications (BTL)

Audio performance is recorded as a chipset consisting of a TAS5518 pwm processor (modulation index limited to 97.7%) and

a TAS5342A power stage. PCB and system configuration are in accordance with recommended guidelines. Audio frequency

= 1 kHz, PVDD_x = 31.5 V, GVDD_x = 12 V, RL = 4 Ω, fS = 384 kHz, ROC = 27 kΩ, TC = 75°C, Output Filter: LDEM = 10 μH,

CDEM = 470 nF, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POMAX

Maximum Power Output

RL = 4 Ω, 10% THD+N, clipped input signal

100

W

RL = 6 Ω, 10% THD+N, clipped input signal

80

RL = 8 Ω, 10% THD+N, clipped input signal

65

PO

Unclipped Power Output

RL = 4 Ω, 0 dBFS, unclipped input signal

80

RL = 6 Ω, 0 dBFS, unclipped input signal

64

RL = 8 Ω, 0 dBFS, unclipped input signal

50

THD+N

Total harmonic distortion + noise

0 dBFS; AES17 filter

0.4%

1 W; AES17 filter

0.09%

Vn

Output integrated noise

A-weighted, AES17 filter, Auto mute disabled

45

μV

SNR

Signal-to-noise ratio (1)

A-weighted, AES17 filter, Auto mute disabled

110

dB

DNR

Dynamic range

A-weighted, input level = –60 dBFS, AES17

filter

110

dB

DC Offset

Output offset voltage

±15

mV

Pidle

Power dissipation due to idle losses

(IPVDD_X)

PO = 0 W, all halfbridges switching

(2)

2

W

(1)

SNR is calculated relative to 0-dBFS input level.

(2)

Actual system idle losses are affected by core losses of output inductors.

6.7

Audio Specifications (Single-Ended Output)

Audio performance is recorded as a chipset consisting of a TAS5086 pwm processor (modulation index limited to 97.7%) and

a TAS5342A power stage. PCB and system configuration are in accordance with recommended guidelines. Audio frequency

= 1 kHz, PVDD_x = 31.5 V, GVDD_x = 12 V, RL = 4 Ω, fS = 384 kHz, ROC = 27 kΩ, TC = 75°C, Output Filter: LDEM = 20 μH,

CDEM = 1 μF, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POMAX

Maximum Power Output

RL = 3 Ω, 10% THD+N, clipped input

signal

40

W

RL = 4 Ω, 10% THD+N, clipped input

signal

30

PO

Unclipped Power Output

RL = 3 Ω, 0 dBFS, unclipped input signal

30

RL = 4 Ω, 0 dBFS, unclipped input signal

20

THD+N

Total harmonic distortion + noise

0 dBFS; AES17 filter

0.2%

1 W; AES17 filter

0.1%

Vn

Output integrated noise

A-weighted, AES17 filter, Auto mute

disabled

35

μV

SNR

Signal-to-noise ratio(1)

A-weighted, AES17 filter, Auto mute

disabled

109

dB

DNR

Dynamic range

A-weighted, input level = –60 dBFS

AES17 filter

109

dB

Pidle

Power dissipation due to idle losses (IPVDD_X)

PO = 0 W, all half bridges switching

(2)

2

W