TAS2120 datasheet(6/113 Pages) TI2

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5.4 Thermal Information

THERMAL METRIC(1)

Standard JEDEC(2)

UNIT

HR-QFN

26 PINS

RθJA

Junction-to-ambient thermal resistance

51.5

℃/W

RθJC(top)

Junction-to-case (top) thermal resistance

28.5

℃/W

RθJB

Junction-to-board thermal resistance

15.3

℃/W

ΨJT

Junction-to-top characterization parameter

0.9

℃/W

ΨJB

Junction-to-board characterization parameter

15.2

℃/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

(2)

JEDEC Standard 4 Layer PCB

5.5 Electrical Characteristics

TA = 25°C, VBAT = 3.6V, VBAT2S = 7.2V (2S mode enabled), PVDD = 12V ( External PVDD mode enabled), VDD = 1.8V,

IOVDD = 1.8V, RL = 8Ω + 33µH, LBOOST(1S Boost mode) = 1µH, Fin = 1kHz, Fs = 48kHz, Gain = 21dBV, BST_ILIM (1S

Boost mode) = 5.1A, BST_ILIM (2S Boost, HW mode) = 4.1A, BST_ILIM (2S Boost, I2C mode) = 5.1A, SDZ=1, Noise gate

disabled, Class-D edge rate set to 2V/ns, I2C mode of operation, Measured filter free with an Audio Precision using 22Hz to

20kHz un-weighted bandwidth (unless otherwise noted).(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AMPLIFIER PERFORMANCE - INTERNAL BOOST 1S Mode

POUT

Maximum Output Power - 1% THD+N

RL = 8 Ω + 33 µH

6.4

RL = 4 Ω + 33 µH

6.6

RL = 8 Ω + 33 µH, VBAT = 4.4V

8.0

RL = 4 Ω + 33 µH, VBAT = 4.4V

8.2

POUT

Maximum Output Power - 10% THD+N

RL = 8 Ω + 33 µH, VBAT = 4.4V

9.5

RL = 4 Ω + 33 µH, VBAT = 4.4V

9.8

ηSYSTEM_

System Efficiency at POUT = 1.0W

RL = 8 Ω + 33 µH

86.7

RL = 4 Ω + 33 µH

RL = 8 Ω + 33 µH, VBAT = 4.4V

87.8

RL = 4 Ω + 33 µH, VBAT = 4.4V

86.7

ηSYSTEM_

MAX_POUT

System Efficiency at 1% THD+N power

Level

RL = 8 Ω + 33 µH

72.6

RL = 4 Ω + 33 µH

71.8

RL = 8 Ω + 33 µH, VBAT = 4.4V

76.6

RL = 4 Ω + 33 µH, VBAT = 4.4V

76.5

Idle channel Noise

A-Weighted, Gain = 6dBV (Receiver

Mode), DAC-Running

4.2

µV

A-Weighted, Gain = 21dBV (Speaker

Mode), DAC-Running

14.4

µV

DNR

Dynamic Range

A-Weighted, -60 dBFS Method, RL = 8 Ω

+ 33 µH, Gain = 6dBV (Receiver Mode)

113.8

A-Weighted, -60 dBFS Method, RL = 8 Ω

+ 33 µH, Gain = 21dBV (Speaker Mode)

113.7

THD+N

Total Harmonic distortion + Noise

POUT = 1 W, RL = 8 Ω + 33 µH

0.003

POUT = 1 W, RL = 4 Ω + 33 µH

0.004

KCP

Click and pop performance

All dynamic power up/downs of audio

channel except for faults. Includes in/out

of mute, power up and power down, noise

gate mode entry and exit. Measured as

peak A-weighted voltage. RL = 8 Ω + 33

µH, Input = digital silence

–67

dBV

TAS2120

SLASFC6A – AUGUST 2024 – REVISED AUGUST 2025

www.ti.com

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