LM4545VH datasheet(2/16 Pages) NSC

2 / 16 page

Absolute Maximum Ratings (Note 3)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage

6.0V

Storage Temperature

−65˚C to +150˚C

Input Voltage

−0.3V to V

DD +0.3V

ESD Susceptibility (Note 5)

2500V

pins 27, 28, 40

1500V

pin 3

750V

ESD Susceptibility (Note 6)

200V

pin 3

100V

Junction Temperature

150˚C

Soldering Information

TQFP Package

Vapor Phase (60 sec.)

215˚C

Infrared (15 sec.)

220˚C

See AN-450

″Surface Mounting and their Effects on

Product Reliability

″ for other methods of

soldering surface mount devices.

JA (typ) — VBH48A

74˚C/W

Operating Ratings

Temperature Range

MIN ≤ TA ≤ TMAX

−40˚C

≤ T

A ≤ 85˚C

Analog Supply Range

4.2V

≤ AV

DD ≤ 5.5V

Digital Supply Range

3.0V

≤ DV

DD ≤ 5.5V

Electrical Characteristics (Notes 1, 3)

The following specifications apply for AV

DD = 5V, DVDD = 5V unless otherwise noted. Limits apply for TA= 25˚C. The reference

for 0dB is 1Vrms unless otherwise specified.

Symbol

Parameter

Conditions

LM4545

Units

(Limits)

Typical

(Note 7)

Limit

(Note 8)

Analog Supply Range

4.2

V (min)

5.5

V (max)

Digital Supply Range

3.0

V (min)

5.5

V (max)

DDD

Digital Quiescent Power Supply

Current

VDD =5V

VDD = 3.3V

DDA

Analog Quiescent Power Supply

Current

Shutdown Current

1.5

REF

Reference Voltage

2.23

PSRR

Power Supply Rejection Ratio

Analog Loopthru Mode

Dynamic Range (Note 2)

CD Input to Line Output, -60dB Input

THD+N, A-Weighted

dB (min)

THD

Total Harmonic Distortion

O = -3dB, f = 1kHz, RL = 10kΩ

0.01

0.02

% (max)

Analog Input Section

Line Input Voltage

Vrms

Mic Input with 20dB Gain

0.1

Vrms

Mic Input with 0dB Gain

Vrms

Xtalk

Crosstalk

CD Left to Right

-85

-70

dB (max)

Input Impedance

Ω (min)

Input Capacitance

Interchannel Gain Mismatch

CD Left to Right

0.04

Record Gain Amplifier - A/D

Step Size

0dB to 22.5dB

1.5

Mixer Section

Step Size

+12dB to -34.5dB

1.5

Mute Attenuation

Analog to Digital Converters

Resolution

Bits

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