LM4947, LM4947TLEVAL

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SNAS349D – JUNE 2006 – REVISED MAY 2013

ABSOLUTE MAXIMUM RATINGS

(1) (2)

Supply Voltage

6.0V

Storage Temperature

−65°C to +150°C

Input Voltage

−0.3 to VDD +0.3

ESD Susceptibility(3)

2.0kV

ESD Machine model(4)

200V

Junction Temperature (TJ)

150°C

Solder Information

Vapor Phase (60 sec.)

215°C

Infrared (15 sec.)

220°C

Thermal Resistance

θJA (typ) - YZR0025BBA

65°C/W

(1)

Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured

specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.

Some performance characteristics may degrade when the device is not operated under the listed test conditions.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

Human body model, 100pF discharged through a 1.5k

Ω resistor.

(4)

Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage, then

discharged directly into the IC with no external series resistor (resistance of discharge path must be under 50

Ω).

OPERATING RATINGS

Temperature Range

−40°C to 85°C

Supply Voltage (VDD)

2.7V

≤ VDD ≤ 5.5V

Supply Voltage (I2C)

2.2V

≤ VDD ≤ 5.5V

Supply Voltage (Loudspeaker VDD)

2.7V

≤ VDD ≤ 5.5V

ELECTRICAL CHARACTERISTICS 3.3V

(1) (2)

The following specifications apply for VDD = 3.3V, TA = 25°C, and all gains are set for 0dB unless otherwise specified.

Symbol

Parameter

Conditions

LM4947

Units

(Limits)

Typical(3)

Limits(4)

Output Modes 2, 4, 6

VIN = 0V; No load,

4.5

6.5

mA (max)

OCL = 0 (Table 2)

IDDQ

Quiescent Supply Current

Output Modes 1, 3, 5, 7

VIN = 0V; No load, BTL,

6.5

8

mA (max)

OCL = 0 (Table 2)

ISD

Shutdown Current

Output Mode 0

0.1

1

µA (max)

VIN = 0V, Mode 7, Mono

2

15

mV (max)

VOS

Output Offset Voltage

VIN = 0V, Mode 7, Headphones

2

15

mV (max)

MONO OUT; RL = 8Ω

500

400

mW (min)

THD+N = 1%; f = 1kHz, BTL, Mode 1

PO

Output Power

ROUT and LOUT; RL = 32Ω

37

33

mW (min)

THD+N = 1%; f = 1kHz, SE, Mode 4

MONOOUT

f = 1kHz, POUT = 250mW;

0.03

%

RL = 8Ω, BTL, Mode 1

THD+N

Total Harmonic Distortion Plus Noise

ROUT and LOUT

f = 1kHz, POUT = 12mW;

0.02

%

RL = 32Ω, SE, Mode 4

(1)

Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured

specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.

Some performance characteristics may degrade when the device is not operated under the listed test conditions.

(2)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(3)

Typical specifications are specified at +25°C and represent the most likely parametric norm.

(4)

Tested limits are specified to AOQL (Average Outgoing Quality Level).

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