TAS5721 datasheet(12/71 Pages) TI1

12 / 71 page

TAS5721

SLOS739 – JULY 2012

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Speaker Amplifier Characteristics

TA = 25°C, PVDD = 18 V, AVDD = DRVDD = DVDD = 3.3 V, audio input signal =1 kHz sine wave, BTL, AD mode, fS = 48

kHz, RSPK = 8 Ω, AES17 filter, fPWM = 384 kHz, external components per Typical Application Circuit diagrams, and in

accordance with recommended operating conditions (unless otherwise specified).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

PVDD = 18 V, RSPK = 8Ω, 1-kHz input signal

PVDD = 12 V, RSPK = 8Ω, 10% THD+N, 1-kHz

8.8

input signal

Power output per channel of

PVDD = 12 V, RSPK = 8Ω, 7% THD+N, 1-kHz input

PoSPK

8.3

speaker amplifier when used in

signal

(BTL)

BTL mode (1)

PVDD = 8 V, RSPK = 8Ω, 10% THD+N, 1-kHz input

signal

PVDD = 8 V, RSPK = 8Ω, 7% THD+N, 1-kHz input

3.8

signal

PVDD = 12 V, RSPK = 4Ω,

10% THD+N, 1-kHz input signal

Power output per channel of

PoSPK

PVDD = 12 V, RSPK = 4Ω,

speaker amplifier when used in

(PBTL)

7% THD+N, 1-kHz input signal

PBTL mode (1)

PVDD = 18 V, RSPK = 4Ω,

1-kHz input signal

PVDD = 12 V, RSPK = 4 Ω,

4.3

Power output per channel of

10% THD+N, 1-kHz input signal

PoSPK

speaker amplifier when used in

(SE)

PVDD = 24 V, RSPK = 4 Ω,

SE mode (1)

5.5

10% THD+N, 1-kHz input signal

PVDD = 18 V, PO = 1 W

0.07

Total harmonic distortion +

THD+N

PVDD = 12 V, PO = 1 W

0.11

noise

PVDD = 8 V, PO = 1 W

0.2

ICN

Idle channel noise

A-weighted

μV

PO = 1 W, f = 1 kHz (BD Mode), PVDD = 24 V

Crosstalk

PO =1 W, f = 1 kHz (AD Mode), PVDD = 24 V

A-weighted, f = 1 kHz, maximum power at THD <

SNR

Signal-to-noise ratio(2)

106

11.025/22.05/44.1-kHz data rate ±2%

352.8

fPWM

Output switching frequency

kHz

48/24/12/8/16/32-kHz data rate ±2%

384

Normal mode

IPVDD

Supply current

No load (PVDD)

Reset (RST = low, PDN =

high)

Drain-to-source resistance (for

rDS(on)

each of the Low-Side and High- TJ = 25°C, includes metallization resistance

200

Side Devices)

Internal pulldown resistor at the

Connected when drivers are in the high-impedance

RPD

output of each half-bridge

state to provide bootstrap capacitor charge.

(1)

Power levels are thermally limited.

(2)

SNR is calculated relative to 0-dBFS input level.

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