TDA1910 datasheet(5/15 Pages) STMICROELECTRONICS

5 / 15 page

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Efficiency

Vs = 24V

f = 1 KHz

RL = 4

Ω

Po = 12W

RL = 8

Ω

Po = 7.5W

Small signal bandwidth

Vs = 24V

RL = 4

Ω

Po = 1W

10 to 120,000

Power bandwidth

Vs = 24V

Po = 12W

RL = 4

Ω

≤ 5%

40 to 15,000

Voltage gain (open loop)

f = 1 KHz

Voltage gain (closed loop)

Vs = 24V

f = 1 KHz

RL = 4

Ω

Po = 1W

29.5

30.5

Total input noise

Rg = 50

Ω

Rg = 1K

Ω

(

°)

Rg = 10K

Ω

1.2

1.3

1.5

3.0

3.2

4.0

µV

Rg = 50

Ω

Rg = 1K

Ω

(

°°)

Rg = 10K

Ω

2.0

2.2

5.0

5.2

6.0

µV

S/N

Signal to noise ratio

Vs = 24V

Po = 12W

RL = 4

Ω

Rg = 10K

Ω

Rg = 0

(

°)97

103

105

Rg = 10K

Ω

Rg = 0

(

°°)93

100

SVR

Supply voltage rejection

Vs = 24V

RL = 4

Ω

fripple = 100 Hz

Rg = 10 K

Ω

Tsd

Thermal sjut-down case (*)

temperature

Ptot = 8W

110

125

°C

MUTING FUNCTION (Refer to Muting circuit)

Muting-off threshold voltage

(pin 11)

1.9

4.7

Muting-on threshold voltage

(pin 11)

1.3

Input resistance (pin 1)

Muting off

200

Ω

Muting on

Ω

R11

Input resistance (pin 11)

150

Ω

Muting attenuation

Rg + R1 = 10 K

Ω

ELECTRICAL CHARACTERISTICS (continued)

Note :

(

°) Weighting filter = curve A.

(

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

(*)

See fig. 29 and fig. 30.

5/15

TDA1910

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