Datasheet

TLV320AIC3256

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SLOS630B –DECEMBER 2010–REVISED JANUARY 2013

Electrical Characteristics, Bypass Outputs

At 25°C, Vsys, AVdd, DVdd, IOVdd, DVdd_CP, DRVdd_HP = 1.8V, f

(Audio) = 48kHz, C

REF

= 1µF on REF PIN, PLL and

Charge pump disabled unless otherwise noted.

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

ANALOG BYPASS TO HEADPHONE AMPLIFIER, DIRECT MODE

Load = 16Ω (single-ended), 50pF;

Input and Output CM = 0.9V;

Device Setup Headphone Output on DRVdd_HP Supply;

IN1L routed to HPL and IN1R routed to HPR;

Channel Gain = 0dB

Gain Error 0.8 dB

Noise, A-weighted

(1)

Idle Channel, IN1L and IN1R ac-shorted to 3.3 μV

RMS

ground

THD Total Harmonic Distortion 446mVrms, 1kHz input signal –81 dB

ANALOG BYPASS TO LINE-OUT AMPLIFIER, PGA MODE

Load = 10kΩ (single-ended), 50pF;

Input and Output CM = 0.9V;

Device Setup

LINE Output on DRVdd_HP Supply;

IN1L, IN1R routed to line out

Channel Gain = 0dB

Gain Error Gain Error 0.8 dB

Idle Channel, 6.7 μV

RMS

IN1L and IN1R ac-shorted to ground

Noise, A-weighted

(1)

Channel Gain = 40dB, 3 μV

RMS

Input Signal (0dB) = 5mV

RMS

Inputs ac-shorted to ground, Input Referred

(1) All performance measurements done with 20kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may

result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter

removes out-of-band noise, which, although not audible, may affect dynamic specification values

Product Folder Links: TLV320AIC3256