Parameter

Symbol

Conditions

min

typ

max

Unit

No-load current drain

When all amplifier outputs are on (Mute high)

20

40

mA

When all amplifier outputs are off (Mute low)

15

35

mA

Output offset voltage

–50

+50

mV

–50

+50

mV

Buffer amplifier input voltage

range

1.5

V

Input voltage range

1.0

V

Output source voltage

5.0

5.6

V

Output sink voltage

1.8

2.4

V

Closed-circuit voltage gain

VG

Between bridge amplifiers

9

dB

Slew rate

SR

0.15

V/µs

Mute on voltage

Note 3

1.2

V

[Power Supply] (with 2SB632K connected externally)

Output voltage

4.75

5.0

5.25

V

Line regulation

5.6 V

20

100

mV

Load regulation

50

150

mV

[Reset]

High reset output voltage

4.73

4.98

5.23

V

Low reset output voltage

100

200

mV

Reset threshold voltage

Note 4

4.3

V

Reset hysteresis voltage

Vhys

Note 5

40

100

200

mV

Reset output delay time

Cd = 0.1 µF

10

ms

Notes:

1.

Source voltage to ground when an 8

Ω load is connected between bridge amplifier outputs.

2.

Sink voltage to ground when an 8

Ω load is connected between bridge amplifier outputs.

3.

When the mute signal is high, all amplifier outputs turn on, and when low, all amplifier outputs turn off. When the mute

signal is low, amplifier output is undefined.

4.

5 V supply voltage when the reset output goes low.

5.

Potential difference from the 5 V supply voltage when the reset output goes low and when it goes high.

Truth Table

Input

MUTE

CH1

CH2

CH3

CH4

(Amp1)

(Amp2)

(Amp3)

(Amp4)

(Amp5)

(Amp6)

(Amp7)

(Amp8)

H

HH

L

L

HH

L

L

H

L

————————

L

HLH

HL

LH

HL

L

————————

* The ‘‘—’’ symbol means ‘‘amplifier output is OFF.’’

Ambient temperature, Ta – °C

Pd max – Ta

With PCB

2.3

1.38

LA6541

No. 5897- 2/6