LM49352 datasheet(12/106 Pages) TI

12 / 106 page

LM49352

SNAS467E – MARCH 2009 – REVISED MARCH 2013

www.ti.com

Electrical Characteristics

A_VDD = LS_VDD = 3.3V; HP_VDD = D_VDD = I/O_VDD = 1.8V

(1)(2) (continued)

The following specifications apply for RL(LS) = 8Ω, RL(HP) = 32Ω, f = 1kHz, unless otherwise specified. Limits apply for TA =

25°C.

LM49352

Units

Symbol

Parameter

Conditions

Typical

Limit

(Limit)

(3)

(4)

HEADPHONE AMPLIFIERS

PO = 15mW, f = 1kHz,

THD+N

Total Harmonic Distortion + Noise

RL = 32Ω

0.025

0.1

% (max)

Stereo Analog Input Signal

RL = 32Ω, f = 1kHz, THD+N = 1%,

Stereo Analog Input Signal, In phase

HP_VDD = 2.8V

HP_VDD = 1.8V

mW (min)

Headphone Output Power

RL = 16Ω, f = 1kHz, THD+N = 1%,

Stereo Analog Input Signal, In phase

HP_VDD = 2.8V

HP_VDD = 1.8V

VRIPPLE = 200mVP-P, fRIPPLE = 217Hz

Mono Input Terminated, Mono gain = 0dB

VREF = 1.0μF, Mono Differential Input Mode,

Ripple applied to AVDD only

100

dB (min)

PSRR

Power Supply Rejection Ratio

Ripple applied to AVDD and HPVDD

VRIPPLE = 200mVP-P, fRIPPLE = 217Hz

From DAC, DAC gain = 0dB

Ripple applied to AVDD

HPVDD, and DVDD

Reference = VOUT (1% THD+N )

Gain = 0dB, A-weighted

dB (min)

Stereo Inputs Terminated

SNR

Signal to Noise Ratio

Reference = VOUT (1% THD+N)

Gain = 0dB,

dB (min)

A-weighted, I2S Input = Digital Zero

Gain = 0dB, A-weighted,

µV

Stereo Inputs Terminated

eOS

Output Noise

Gain = 0dB, A-weighted,

µV

I2S Input = Digital Zero

PO = 7.5mW, f = 1kHz,

XTALK

Crosstalk

RL = 32Ω

Stereo Analog Input Signal

ΔACH-CH

Channel-to-Channel Gain Matching

0.03

AUX Gain = 0dB

1.4

mV (max)

From mono Input

VOS

Output Offset Voltage

DAC Gain = 0dB

1.6

mV (max)

From DAC Input, fMCLK = 12.288MHz

Submit Documentation Feedback

Product Folder Links: LM49352

LM49352 Scheda tecnica(PDF) 12 Page - Texas Instruments

LM49352 Scheda tecnica(HTML) 12 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Scheda tecnica Scarica

Link URL