A21SP16 datasheet(15/37 Pages) STMICROELECTRONICS

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A21SP16

Electrical characteristics

Table 10. VCC = +2.4V, GND = 0V, VIC = 2.5V, Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

ICC

Supply current

No input signal, no load

1.7

ISTBY

Standby current (1)

No input signal, VSTBY = GND

VOO

Output offset voltage

No input signal, RL =8

3mV

Pout

Output power

G=6dB

THD = 1% max, F = 1kHz, RL =4

THD = 10% max, F = 1kHz, RL =4

THD = 1% max, F = 1kHz, RL =8

THD = 10% max, F = 1kHz, RL =8

0.48

0.65

0.3

0.38

THD + N

Total harmonic

distortion + noise

Pout =200mWRMS, G = 6dB, 20Hz < F< 20kHz

RL =8 + 15µH, BW < 30kHz

Efficiency Efficiency

Pout = 0.38WRMS, RL =4 +  15µH

Pout = 0.25WRMS, RL =8+  15µH

CMRR

Common mode

rejection ratio

F = 217Hz, RL =8, G = 6dB,

DVicm = 200mVpp

Gain

Gain value

Rin in k

V/V

RSTBY

Internal resistance

from Standby to GND

273

300

327



FPWM

Pulse width modulator

base frequency

250

kHz

SNR

Signal to noise ratio

A Weighting, Pout = 1.2W, RL =8

tWU

Wake-up time

tSTBY

Standby time

Output voltage noise

F = 20Hz to 20kHz, G = 6dB

Unweighted RL =4

A-weighted RL =4

VRMS

Unweighted RL =8

A-weighted RL =8

Unweighted RL =4+ 15µH

A-weighted RL =4+ 15µH

Unweighted RL =4+ 30µH

A-weighted RL =4+ 30µH

Unweighted RL =8+ 30µH

A-weighted RL =8 + 30µH

Unweighted RL =4+ Filter

A-weighted RL =4+ Filter

Unweighted RL =4+ Filter

A-weighted RL =4+ Filter

1. Standby mode is active when VSTBY is tied to GND.

273k



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

300k



Rin

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

327k



Rin

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

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