LM4550 datasheet(4/25 Pages) NSC

tên linh kiện	LM4550

Giải thích chi tiết về linh kiện	AC ??7 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound

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Electrical Characteristics(Notes 1, 3) The following specifications apply for AV

DD = 5V, DVDD = 5V, Fs =

48kHz, single codec configuration, unless otherwise noted. Limits apply for T

A= 25˚C. The reference for 0dB is 1Vrms unless

otherwise specified. (Continued)

Symbol

Parameter

Conditions

LM4550

Units

(Limits)

Typical

(Note 7)

Limit

(Note 8)

Analog to Digital Converters

Resolution

18

Bits

Dynamic Range (Note 2)

-60dB Input THD+N, A-Weighted

90

86

dB (min)

Frequency Response

-1dB Bandwidth

20

kHz

Digital to Analog Converters

Resolution

18

Bits

Dynamic Range (Note 2)

-60dB Input THD+N, A-Weighted

89

85

dB (min)

THD

Total Harmonic Distortion

V

IN = -3dB, f=1kHz, RL = 10k

Ω

0.01

%

Frequency Response

20 - 21k

Hz

Group Delay (Note 2)

2

mS (max)

Out of Band Energy

-40

dB

Stop Band Rejection

70

dB

D

T

Discrete Tones

-96

dB

Output Volume and Amplifier Section

A

S

Step Size

0dB to -46.5dB

1.5

dB

A

M

Mute Attenuation

86

dB

THD+N

Headphone Amplifier Total Harmonic

Distortion plus Noise

Loop thru Mode R

L=32, F=1KHz,

P

out=50mW

0.02

%

Digital I/O (Note 2)

V

IL

Low level input voltage

0.30 x

DVDD

V (max)

V

HI

High level input voltage

0.40 x

DVDD

V (min)

V

OH

High level output voltage

0.50 x

DVDD

V (min)

V

OL

Low level output voltage

0.20 x

DVDD

V (max)

I

L

Input Leakage Current

AC Link inputs

±10

µA

I

L

Tri state Leakage Current

High impedance AC Link outputs

±10

µA

I

DR

Output drive current

AC Link outputs

5

mA

Digital Timing Specifications (Note 2)

F

BC

BIT_CLK frequency

12.288

MHz

T

BCP

BIT_CLK period

81.4

nS

T

CH

BIT_CLK high

Variation of BIT_CLK period from 50%

duty cycle

±20

% (max)

F

SYNC

SYNC frequency

48

kHz

T

SP

SYNC period

20.8

µS

T

SH

SYNC high pulse width

1.3

µS

T

SL

SYNC low pulse width

19.5

µS

T

SETUP

Setup Time

SDATA_IN, SDATA_OUT to falling edge

of BIT_CLK

15

nS (min)

T

HOLD

Hold Time

Hold time of SDATA_IN, SDATA_OUT

from falling edge of BIT_CLK

5

nS (min)

T

RISE

Rise Time

BIT_CLK, SYNC, SDATA_IN or

SDATA_OUT

6

nS (max)

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Số phần tương tự - LM4550

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LM4550B	998Kb / 31P	AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
Texas Instruments	LM4550B	1Mb / 43P	[Old version datasheet] LM4550B AC 97 Rev 2.1 Multi-Channel Audio Codec
National Semiconductor ...	LM4550BVH	998Kb / 31P	AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
Texas Instruments	LM4550BVH	1Mb / 43P	[Old version datasheet] LM4550B AC 97 Rev 2.1 Multi-Channel Audio Codec
Texas Instruments	LM4550BVH	1Mb / 45P	[Old version datasheet] LM4550B AC 97 Rev 2.1 Multi-Channel Audio Codec With Stereo Headphone Amplifier, Sample Rate Conversion and TI 3D Sou

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Mô tả tương tự - LM4550

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LM4550B	998Kb / 31P	AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
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	LM4549	324Kb / 18P	AC ??7 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound
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	LM4546B	908Kb / 27P	AC ??7 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound
	LM4546	308Kb / 18P	AC ??7 Rev 2 Codec with Sample Rate Conversion and National 3D Sound
	LM4548	322Kb / 18P	AC ??7 Rev 2 Codec with Sample Rate Conversion and National 3D Sound
	LM4546A	1Mb / 28P	AC 97 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound
Texas Instruments	LM4450B	1Mb / 45P	[Old version datasheet] LM4550B AC 97 Rev 2.1 Multi-Channel Audio Codec With Stereo Headphone Amplifier, Sample Rate Conversion and TI 3D Sou

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