TS4962 datasheet(5/22 Pages) STMICROELECTRONICS

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Electrical Characteristics

TS4962

5/22

Table 4.

VCC = +4.2V, GND = 0V, VICM = 2.1V, Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

ICC

Supply Current

No input signal, no load

2.1

ISTANDBY

Standby Current 2

No input signal, VSTBY = GND

1000

Voo

Output Offset Voltage

No input signal, RL = 8Ω

325

Output Power, G=6dB

THD = 1% Max, f = 1kHz, RL = 4Ω

THD = 10% Max, f = 1kHz, RL = 4Ω

THD = 1% Max, f = 1kHz, RL = 8Ω

THD = 10% Max, f = 1kHz, RL = 8Ω

1.6

0.95

1.2

THD + N

Total Harmonic Distortion + Noise

Po = 600 mWRMS, G = 6dB, 20Hz < f < 20kHz,

RL = 8Ω + 15µH, BW < 30kHz

Po = 700mWRMS, G = 6dB, f = 1kHz,

RL = 8Ω + 15µH, BW < 30kHz

0.35

Efficiency

Po = 1.45 WRMS, RL = 4Ω + ≥ 15µH

Po = 0.9 WRMS, RL = 8Ω+ ≥ 15µH

PSRR

Power Supply Rejection Ratio with inputs grounded 3

f = 217Hz, RL = 8Ω, G=6dB, Vripple = 200mVpp

CMRR

Common Mode Rejection Ratio

f = 217Hz, RL = 8Ω, G = 6dB, ∆Vic = 200mVpp

Gain

Gain value (Rin in kΩ)

V/V

RSTDBY

Internal Resistance From Standby to GND

273

300

327

Ω

FPWM

Pulse Width Modulator Base Frequency

180

250

320

kHz

SNR

Signal to Noise ratio (A Weighting), Po = 0.9W, RL = 8Ω

TWU

Wake-up time

510ms

TSTB

Standby time

510ms

Output Voltage Noise f = 20Hz to 20kHz, G = 6dB

Unweighted RL = 4Ω

A weighted RL = 4Ω

Unweighted RL = 8Ω

A weighted RL = 8Ω

Unweighted RL = 4Ω + 15µH

A weighted RL = 4Ω + 15µH

Unweighted RL = 4Ω + 30µH

A weighted RL = 4Ω + 30µH

Unweighted RL = 8Ω + 30µH

A weighted RL = 8Ω + 30µH

Unweighted RL = 4Ω + Filter

A weighted RL = 4Ω + Filter

Unweighted RL = 4Ω + Filter

A weighted RL = 4Ω + Filter

µVRMS

All electrical values are guaranted with correlation measurements at 2.5V and 5V.

Standby mode is actived when Vstdby is tied to GND.

Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz.

273k

Ω

------------------

300 k

Ω

------------------

327k

Ω

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