LM4842 datasheet(5/31 Pages) NSC

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Electrical Characteristics for Single-Ended Mode Operation (Notes 7,

10) (Continued)

The following specifications apply for V

DD = 5V and TA = 25˚C unless otherwise noted.

Symbol

Parameter

Conditions

LM4842

Units

(Limits)

Typical

(Note 14)

Limit

(Note 15)

THD+N

Total Harmonic Distortion+Noise

OUT =1VRMS, f=1kHz, RL = 10k

Ω,

VD =1

0.065

PSRR

Power Supply Rejection Ratio

B = 1.0 µF, f =120 Hz,

RIPPLE = 200 mVrms

SNR

Signal to Noise Ratio

OUT =75 mW, R L =32

Ω, A-Wtd

Filter

102

talk

Channel Separation

f=1kHz, C

B = 1.0 µF

Electrical Characteristics for Bridged Mode Operation (Notes 7, 10)

The following specifications apply for V

DD = 5V and TA = 25˚C unless otherwise noted.

Symbol

Parameter

Conditions

LM4842

Units

(Limits)

Typical

(Note 14)

Limit

(Note 15)

Output Offset Voltage

IN = 0V, No Load

±50

mV (max)

Output Power

THD+N= 1.0%; f=1kHz; R

L =3

Ω

(Note 8)

2.2

THD+N= 1.0%; f=1kHz; R

L =4

Ω

(Note 9)

THD = 1.0% (max);f = 1 kHz;

L =8

Ω

1.1

1.0

W (min)

THD+N = 10%;f = 1 kHz; R

L =8

Ω

1.5

THD+N

Total Harmonic Distortion+Noise

O = 1W, 20 Hz< f < 20 kHz,

L =8

Ω,A

VD =2

0.3

O = 340 mW, RL =32

Ω

1.0

PSRR

Power Supply Rejection Ratio

B = 1.0 µF, f = 120 Hz,

RIPPLE = 200 mVrms; RL =8

Ω

SNR

Signal to Noise Ratio

DD = 5V, POUT = 1.1W, RL =8

Ω,

A-Wtd Filter

talk

Channel Separation

f=1kHz, C

B = 1.0 µF

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