LM48100Q-Q1

SNAS470E – OCTOBER 2008 – REVISED NOVEMBER 2015

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Electrical Characteristics for VDD = 5 V at Extended Temperature Limits (continued)

Programmable Gain = 0 dB, RL = 8 Ω, f = 1 kHz, unless otherwise specified. Limits apply for TA = –40°C to 105°C, unless

otherwise specified.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX

UNIT

AV = 18 dB

12.5

RIN

Input Resistance

k

Ω

AV = –54 dB

89

110

130

THD+N = 10%

1.6

PO

Output Power

RL = 8 Ω, f = 1 kHz

W

THD+N = 1%

0.96

1.3

THD+N

Total Harmonic Distortion + Noise

PO = 850 mW, f = 1 kHz, RL = 8 Ω

0.04%

f = 217 Hz

63

79

VRIPPLE = 200 mVP-P Sine, Inputs AC GND,

PSRR

Power Supply Rejection Ratio

dB

CIN_= 1 μF, Input Referred, CBIAS = 2.2 μF

f = 1 kHz

74

SNR

Signal-to-Noise-Ratio

POUT = 450 mW, f = 1 kHz

104

dB

∈OS

Output Noise

AV = 0 dB, A-weighted Filter

12

μV

IOUT(FAULT)

FAULT Output Current

FAULT = 0, VOUT(FAULT)= 0.4 V

3

mA

Short Circuit

3

Output to Supply Short Circuit

Short between either OUTA to VDD or GND, or

RFAULT

k

Ω

Detection Threshold

OUTB to VDD or GND

Open Circuit

7.5

ISHTCKT

Short Circuit Current Limit

1.47

2

A

TSD

Thermal Shutdown Threshold

170

°C

tDIAG

Diagnostic Time

58

ms

6.7 Electrical Characteristics for VDD = 3.6 V

Programmable Gain = 0 dB, RL = 8 Ω, f = 1 kHz, unless otherwise specified. Limits apply for TA = 25°C, unless otherwise

specified.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX

UNIT

RL = 8 Ω

3.8

8.5

IDD

Quiescent Power Supply Current

VIN = 0 V, Both channels active

mA

RL = ∞

3.6

5

Diagnostic Mode Quiescent Power

IDD

Diagnostic Mode Enabled, RL = ∞

11.7

14.5

mA

Supply Current

ISD

Shutdown Current

Shutdown Enabled

0.01

1

µA

VOS

Differential Output Offset Voltage

VIN = 0 V, RL = 8 Ω

8.8

50

mV

TWU

Wake-Up Time

Time from shutdown to audio available

11.5

50

ms

Minimum Gain Setting

–55

–54

–53

AV

Gain

dB

Maximum Gain Setting

17

18

19

Mute

Mute Attenuation

–79

–77

dB

AV = 18 dB

11.5

12.5

13.5

RIN

Input Resistance

k

Ω

AV = –54 dB

98

110

120

THD+N = 10%

820

PO

Output Power

RL = 8 Ω, f = 1 kHz

mW

THD+N = 1%

480

660

THD+N

Total Harmonic Distortion + Noise

PO = 400 mW, f = 1 kHz, RL = 8 Ω

0.04%

f = 217 Hz

66

78

VRIPPLE = 200 mVP-P Sine, Inputs AC GND,

PSRR

Power Supply Rejection Ratio

dB

CIN_= 1 μF, Input Referred, CBIAS = 2.2 μF

f = 1 kHz

75

SNR

Signal-to-Noise-Ratio

POUT = 780 mW, f = 1 kHz

106

dB

∈OS

Output Noise

AV = 0 dB, A-weighted Filter

12.5

μV

IOUT(FAULT)

FAULT Output Current

FAULT = 0, VOUT(FAULT)= 0.4 V

3

mA

Short Circuit

3

Output to Supply Short Circuit

Short between either OUTA to VDD or GND, or

RFAULT

k

Ω

Detection Threshold

OUTB to VDD or GND

Open Circuit

7.5

Short Circuit

6

Output to Supply Short Circuit

Short between both OUTA and

RFAULT

k

Ω

Detection Threshold

OUTB to VDD or GND

Open Circuit

15

ROPEN

Open Circuit Detection Threshold

Open circuit between OUTA and OUTB

100

200

Ω

Output to Output Short Circuit

RSHT

Short circuit between OUTA and OUTB

2

6

Ω

Detection Threshold

ISHTCKT

Short Circuit Current Limit

1.43

A

(1)

Datasheet min/max specification limits are specified by test or statistical analysis.

(2)

Typical Values are given for TA = 25°C.

6

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