TS2007IQT(2007) 查看數據表（PDF） - STMicroelectronics

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TS2007IQT
(Rev.:2007)

3 W filter-free Class D audio power amplifer with 6-12 dB fixed gain select

STMicroelectronics 

Electrical characteristics

3

Electrical characteristics

TS2007

3.1

Electrical characteristic tables

Table 5. VCC = +5V, GND = 0V, Vic=2.5V, Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Min. Typ. Max. Unit

ICC

ICC-STBY

Voo

Po

THD + N

Efficiency

PSRR

CMRR

Gain

Zin

FPWM

SNR

tWU

Supply current

No input signal, no load

Standby current (1)

No input signal, VSTBY = GND

Output offset voltage

Floating inputs, RL = 8Ω

Output power

THD = 1% max, f = 1kHz, RL = 4Ω

THD = 1% max, f = 1kHz, RL = 8Ω

THD = 10% max, f = 1kHz, RL = 4Ω

THD = 10% max, f = 1kHz, RL = 8Ω

Total harmonic distortion + noise

Po = 1WRMS, G = 6dB, f =1kHz, RL = 8Ω

Efficiency

Po = 2.1 WRMS, RL = 4Ω (with LC output filter)

Po = 1.3 WRMS, RL = 8Ω (with LC output filter)

Power supply rejection ratio with inputs grounded, Cin=1µF (2)

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

f = 217Hz, RL = 8Ω, Gain=12dB, Vripple = 200mVpp

Common mode rejection ratio 20Hz < f < 20kHz

Gain value

GS =0V

GS = VCC

Single input impedance (3)

Pulse width modulator base frequency

Signal to noise ratio (A-weighting)

Po=1.5W, RL=4Ω (with LC output filter)

Wake-up time

2.3 3.3 mA

10 1000 nA

25

mV

2.3

1.4

W

2.8

1.7

0.4

%

84

%

90

63

dB

60

60

dB

11.5 12 12.5 dB

5.5

6

6.5

68 75 82

kΩ

190 280 370 kHz

94

dB

5

10

ms

6/29

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