TAS2120 datasheet(9/63 Pages) TI

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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

VBOOST

Output Boost Voltage

IO = 0.1A. Average output value.

VBOOST_MAX_CTRL = max value

14.9

IBOOST_C

Peak Input Current Limit

BST_ILIM = Max Setting

5.1

IBOOST_C

Peak Input Current Limit

BST_ILIM = Min Setting

1.5

Peak Input Current Limit Programmable

step size

39.1

Boost Converter 2S Mode of operation

VBOOST_

RANGE

Output Voltage Range

Programmable in steps of 66mV

14.75

VBOOST_S

TEP

Class-H Output Voltage Step Size

IBOOST_C

Peak Input Current Limit

Max Setting

5.1

IBOOST_C

Peak Input Current Limit

Min Setting

1.5

TDM Serial Port

PCM Sample Rates and FSYNC Input

Frequency

192

kHz

SBCLK Input Frequency

I2S/TDM Operation

0.512

24.57

MHz

SBCLK Maximum Input Jitter

RMS Jitter below 40 kHz that

can be tolerated without performance

degradation

0.5

RMS Jitter above 40 kHz that

can be tolerated without performance

degradation

SBCLK Cycles per FSYNC in I2S and

TDM Modes

Values: 64, 96, 128, 192, 256, 384 and

512

Cycles

PCM Playback Characteristics to fs ≤ 48 kHz

Sample Rates

kHz

Audio Channel Passband LPF Corner

Ripple < pass-band ripple

0.454

Audio Channel Passband Ripple

20 Hz to LPF cutoff

± 0.1

Audio Channel Stop Band Attenuation

≥ 0.55 fs

≥ 1 fs

Audio Channel Group Delay

Fin = 1kHz, Class-H mode

31.5

1/fs

Fin = 1kHz, Class-H bypassed

6.5

1/fs

DC to 20kHz, HPF bypassed, Class-H

bypassed

11.0

1/fs

DC to 20kHz, HPF bypassed, Class-H

mode

37.0

1/fs

PCM Playback Characteristics to fs > 48 kHz

Sample Rates

88.2

192

kHz

Audio Channel Passband LPF Corner

fs = 96 kHz

0.469

fs = 192 kHz

0.234

Audio Channel Passband Ripple

20 Hz to LPF cutoff

± 0.2

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TAS2120

SLASFC6 – AUGUST 2024

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