TS4962 datasheet(9/44 Pages) STMICROELECTRONICS

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TS4962

Electrical characteristics

Table 7. Electrical characteristics at VCC = +4.2 V with GND = 0 V, Vicm = 2.1 V and

Tamb = 25°C (unless otherwise specified)

(1)

Symbol

Parameter

Min.

Typ.

Max.

Unit

ICC

Supply current

No input signal, no load

2.1

ISTBY

Standby current (2)

No input signal, VSTBY = GND

1000

Voo

Output offset voltage

No input signal, RL = 8 Ω

Pout

Output power, G = 6 dB

THD = 1% max, f = 1 kHz, RL = 4 Ω

THD = 10% max, f = 1 kHz, RL = 4 Ω

THD = 1% max, f = 1 kHz, RL = 8 Ω

THD = 10% max, f = 1 kHz, RL = 8 Ω

1.5

1.95

0.9

1.1

THD + N

Total harmonic distortion + noise

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

RL = 8 W + 15 µH, BW < 30 kHz

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

RL = 8 W + 15 µH, BW < 30 kHz

0.35

Efficiency

Pout = 1.45 WRMS, RL = 4 Ω + ≥ 15 µH

Pout = 0.9 WRMS, RL = 8 W+ ³ 15 µH

PSRR

Power supply rejection ratio with inputs grounded (3)

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

CMRR

Common mode rejection ratio

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

Gain

Gain value (Rin in kΩ)

V/V

RSTBY

Internal resistance from standby to GND

273

300

327

Ω

FPWM

Pulse width modulator base frequency

200

280

360

kHz

SNR

Signal to noise ratio (A-weighting)

Pout = 0.8 W, RL = 8 Ω

tWU

Wake-up time

tSTBY

Standby time

273k

Ω

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

300k

Ω

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

327k

Ω

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

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