TDA1904 datasheet(3/10 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Supply voltage

Quiescent output voltage

Vs =4V

Vs = 14V

2.1

7.2

Quiescent drain current

Vs =9V

Vs = 14V

Output power

d = 10%

Vs =9V

Vs = 14V

Vs = 12V

Vs =6V

f = 1 KHz

RL =4

Ω

1.8

3.1

0.7

4.5

Harmonic distortion

f = 1 KHz

Vs =9V

RL =4

Ω

Po = 50 mW to 1.2W

0.1

0.3

Input saturation voltage

(rms)

Vs =9V

Vs = 14V

0.8

1.3

Input resistance (pin 8)

f = 1 KHz

150

Ω

Efficiency

f = 1 KHz

Vs =9V

RL =4

Ω

Po =2W

Vs = 14V

RL =4

Ω

Po = 4.5W

Small signal bandwidth (-3 dB)

Vs = 14V

RL =4

Ω

40 to 40,000

Voltage gain (open loop)

Vs = 14V

f = 1 KHz

Voltage gain (closed loop)

Vs = 14V

f = 1 KHz

RL =4

Ω

Po =1W

39.5

40.5

Total input noise

Rg =50

Ω

Rg =10 K

Ω

(

°)

1.2

µV

Rg =50

Ω

Rg =10 K

Ω

(

°°)

µV

SVR

Supply voltage rejection

Vs = 12V

fripple = 100 Hz

Vripple = 0.5 Vrms

Rg =10 K

Ω

Tsd

Thermal shut-down case

temperature

Ptot = 2W

120

ÉC

ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb =25

°C, Rth (heatsink)=

°C/W, unless otherwisw specified)

Note: (

°) Weighting filter = curve A.

(

°°) Filter with noise bendwidth: 22Hz to 22 KHz.

3/10

TDA1904

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