LM4855 datasheet(5/24 Pages) NSC

5 / 24 page

Electrical Characteristics (Notes 2, 8)

The following specifications apply for V

DD= 3.0V, TA= 25˚C unless otherwise specified.

Symbol

Parameter

Conditions

LM4855

Units

(Limits)

Typical

(Note 5)

Limits

(Note 6)

Supply Current

Output mode 1

IN = 0V; No loads

4.5

mA (max)

Output mode 1

IN = 0V; Loaded (Fig.1)

5.0

mA (max)

Output modes 2, 3, 4, 5, 6, 7

IN = 0V; No loads

6.5

mA (max)

Output modes 2, 3, 4, 5, 6, 7

IN = 0V; Loaded (Fig. 1)

mA (max)

Shutdown Current

Output mode 0

0.1

2.0

µA (max)

Output Offset Voltage

IN = 0V

5.0

mV (max)

Output Power

SPKR

OUT;RL =4

Ω

THD+N = 1%; f = 1kHz, LM4855LQ

430

SPKR

OUT;RL =8

Ω

THD+N = 1%; f = 1kHz

340

300

mW (min)

OUT and LOUT;RL =32

Ω

THD+N = 0.5%; f = 1kHz

mW (min)

THD+N

Total Harmonic Distortion Plus

Noise

SPKR

OUT

f = 20Hz to 20kHZ

OUT = 250mW; RL =8

Ω

0.5

OUT and LOUT

f = 20Hz to 20kHZ

OUT = 20mW; RL =32

Ω

0.5

OUT

Output Noise

A-weighted (Note 10)

µV

PSRR

Power Supply Rejection Ratio

SPKR

OUT

RIPPLE = 200mVPP; f = 217Hz, CB =

1.0µF

All audio inputs terminated into 50

Ω;

Output referred Gain (BTL) = 12dB

Output Mode 1, 3, 5, 7

dB (min)

Power Supply Rejection Ratio

OUTand LOUT

RIPPLE = 200mVPP; f = 217Hz, CB =

1.0µF

All audio inputs terminated into 50

Ω;

Output referred Maximum gain setting

Output Mode 2, 3

dB (min)

Output Mode 4, 5

dB (min)

Output Mode 6, 7

dB (min)

Logic High Input Voltage

1.4

V (min)

V (max)

Logic Low Input Voltage

0.4

GND

V (max)

V (min)

LM4855 Datasheet(PDF) 5 Page - National Semiconductor (TI)

LM4855 Datasheet(HTML) 5 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Datasheet Download

Link URL