LM4550BVHX datasheet(3/43 Pages) TI1

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LM4550B

www.ti.com

SNAS276F – MAY 2005 – REVISED APRIL 2013

Absolute Maximum Ratings

(1) (2)

Supply Voltage

6.0V

Storage Temperature

−65°C to +150°C

Input Voltage

−0.3V to VDD +0.3V

ESD Susceptibility(3)

2000V

pin 3

750V

ESD Susceptibility(4)

200V

pin 3

100V

Junction Temperature

150°C

Vapor Phase (60 sec.)

215°C

Soldering Information

LQFP Package

Infrared (15 sec.)

220°C

θJA (typ) – PT

74°C/W

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(2)

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

specifications.

(3)

Human body model, 100 pF discharged through a 1.5 k

Ω resistor.

(4)

Machine Model, 220 pF – 240 pF discharged through all pins.

Operating Ratings

Temperature Range

−40°C ≤ TA ≤ 85°C

TMIN ≤ TA ≤ TMAX

(1)

Analog Supply Range

4.2V

≤ AVDD ≤ 5.5V

Digital Supply Range

3.0V

≤ DVDD ≤ 5.5V

(1)

The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature

TA. The maximum allowable power dissipation is PDMAX = (TJMAX– TA)/θJA or the number given in Absolute Maximum Ratings,

whichever is lower. For the LM4550B, TJMAX = 150°C. The typical junction-to-ambient thermal resistance is 74°C/W for package number

PT.

Electrical Characteristics

(1) (2)

The following specifications apply for AVDD = 5V, DVDD = 3.3V, Fs = 48 kHz, single codec configuration, (primary mode)

unless otherwise noted. Limits apply for TA= 25°C. The reference for 0 dB is 1 Vrms unless otherwise specified.

LM4550B

Units

Symbol

Parameter

Conditions

(Limits)

Typical(3)

Limit(4)

4.2

V (min)

AVDD

Analog Supply Range

5.5

V (max)

3.0

V (min)

DVDD

Digital Supply Range

5.5

V (max)

DIDD

Digital Quiescent Power Supply Current

DVDD = 5 V

34

mA

DVDD = 3.3 V

19

mA

Analog Quiescent Power Supply

AIDD

AVDD = 5 V

53

mA

Current

IDSD

Digital Shutdown Current

PR6543210 = 1111111

19

µA

IASD

Analog Shutdown Current

PR6543210 = 1111111

70

µA

VREF

Reference Voltage

No pullup resistor

2.16

V

PSRR

Power Supply Rejection Ratio

40

dB

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(2)

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

(3)

Typicals are measured at 25°C and represent the parametric norm.

(4)

Limits are specified to Texas Instruments' AOQL (Average Outgoing Quality Level).

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