TAS2120 datasheet(6/63 Pages) TI

6 / 63 page

5.5 Electrical Characteristics (continued)

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

V, IOVDD = 1.8V RL = 8Ω + 33µH, LBOOST = 1µH, fin = 1 kHz, fs = 48 kHz, Gain = 21dBV, BST_ILIM (1S battery) = 5.1A,

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

filter free with an Audio Precision using 22 Hz to 20 kHz un-weighted bandwidth (unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

THD+N

Total Harmonic distortion + Noise

POUT = 1 W, RL = 8 Ω + 33 µH

0.01

POUT = 1 W, RL = 8 Ω + 33 µH, fin =

6.6kHz

0.01

POUT = 1 W, RL = 4 Ω + 33 µH

0.01

POUT = 0.25 W, RL = 8 Ω + 33 µH, Gain

= 6dBV (Receiver Mode)

0.01

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

Amplifier input signal Bandwidth

fs ≥ 96ksps, Gain error < Pass-Band

Ripple

kHz

VFS

Full scale equivalent Voltage

Measured at -6dBFS Input

11.22

VRMS

Measured at -6dBFS Input, Gain = 6dBV

(Receiver Mode)

2.00

VRMS

AGAIN

Audio channel Gain programmability

range

Gain programmability in steps of 0.5dB

dBV

AGAIN_ER

Amplifier Gain error

POUT = 1W

±0.1

POUT = 0.25W, Gain = 6dBV (Receiver

Mode)

±0.1

VOS

Output Offset Voltage

Idle channel

–1

Idle channel, Gain = 6dBV (Receiver

Mode)

–1

FPWM

Class-D PWM switching Frequency

Average clock frequency

384

kHz

PSRRVB

VBAT power-supply rejection ratio

VBAT = 3.6 V + 200 mVpp, fripple = 217 Hz

115

VBAT = 3.6 V + 200 mVpp, fripple = 1 kHz

115

VBAT = 3.6 V + 200 mVpp, fripple = 20 kHz

PSRRVD

VDD power-supply rejection ratio

VDD = 1.8 V + 200 mVpp, fripple = 217 Hz

110

VDD = 1.8 V + 200 mVpp, fripple = 1 kHz

110

VDD = 1.8 V + 200 mVpp, fripple = 20 kHz

MUTE_A

TTN

Mute Attenuation

Device is MUTE mode. DAC modulator

running

110

AMPLIFIER PERFORMANCE - INTERNAL BOOST 2S Mode

POUT_BO

OST_2S

Maximum Continuous Output Power -

10% THDN

RL = 8 Ω + 33 µH

9.8

POUT_BO

OST_2S

Maximum Continuous Output Power -

10% THDN

RL = 8 Ω + 33 µH, VBAT2S = 8.4V

10.5

ηSYSTEM_

0.5W_2S

System Efficiency at POUT = 0.5W

RL = 8 Ω + 33 µH

87.0

RL = 8 Ω + 33 µH, VBAT2S= 8.4V

86.2

RL = 4 Ω + 33 µH

83.5

RL = 4 Ω + 33 µH, VBAT2S = 8.4V

82.7

TAS2120

SLASFC6 – AUGUST 2024

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