SA58631

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

Preliminary data sheet

Rev. 01 — 1 December 2005

5 of 19

Philips Semiconductors

SA58631

3 W BTL audio amplifier

11. Static characteristics

[1]

With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the DC output

[2]

The DC output voltage with respect to ground is approximately 0.5

× V

12. Dynamic characteristics

[1]

Gain of the amplifier is 2

× (R2 / R1) in test circuit of Figure 3.

[2]

The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a source impedance

[3]

sine wave with a frequency of 1 kHz and an amplitude of 100 mV (RMS), which is applied to the positive supply rail.

[4]

sine wave with a frequency between 100 Hz and 20 kHz and an amplitude of 100 mV (RMS), which is applied to the positive supply rail.

[5]

Output voltage in mute position is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, which includes noise.

Table 6:

Static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

supply voltage

operating

2.2

9

18

V

quiescent current

[1] -8

12

mA

standby current

--

10

µA

output voltage

[2] -2.2

-

V

| V

differential output voltage offset

-

-

50

mV

input bias current on pin IN+

-

-

500

nA

input bias current on pin IN

−

--

500

nA

voltage on pin MODE

operating

0

-

0.5

V

mute

1.5

-

V

standby

-

V

current on pin MODE

--

20

µA

Table 7:

Dynamic characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

output power

THD + N = 10 %

1

1.2

-

W

THD+ N=0.5 %

0.6

0.9

-

W

-

3.0

-

W

THD + N

total harmonic distortion

plus noise

-

0.15

0.3

%

closed-loop voltage gain

[1] 6-

30

dB

∆Z

i

differential input

impedance

-100

-

k

Ω

noise output voltage

[2] --

100

µV

PSRR

power supply rejection

ratio

[3] 50

--dB

[4] 40

--dB

output voltage

mute condition

[5] --

200

µV