PCM2912 datasheet(5/32 Pages) TI

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PCM2912

SLES216 – FEBRUARY 2008

ELECTRICAL CHARACTERISTICS (continued)

All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted

PCM2912PJT

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

DAC CHARACTERISTICS

Resolution

Bits

Audio data channel

1, 2

channel

8, 11.025, 16, 22.05, 32, 44.1,

Sampling frequency

kHz

DYNAMIC PERFORMANCE(7)

RL > 10 kΩ, VOUT = 0 dB of 0.6 VCCA

0.01%

0.02%

THD+N

RL = 32 Ω, VOUT = 0 dB of 0.55 VCCA

0.02%

0.05%

Dynamic range

EIAJ, A-Weighted

S/N ratio

EIAJ, A-Weighted

Channel separation

RL > 10 kΩ

DC ACCURACY

Gain mismatch

±2

±10 % of FSR

channel-to-channel

Gain error

±2

±10 % of FSR

Bipolar zero error

±3

% of FSR

ANALOG OUTPUT

RL > 10 kΩ

0.6 VCCA

Output voltage

Vp-p

RL = 32 Ω

0.55 VCCA

Center voltage

0.5 VCCA

RL = 32 Ω

Output power

RL = 16 Ω

LINE

Ω

Load impedance (AC coupling)

HEADPHONE

Ω

–3 dB

140

kHz

LPF frequency response

f = 20 kHz

–0.1

SIDETONE PROGRAMMABLE ATTENUATOR

Gain range

–76

Gain step size

OUTPUT PROGRAMMABLE ATTENUATOR

Gain range

–76

Gain step size

ANALOG LOOPBACK PERFORMANCE(8)

RL > 10 kΩ, VIN = 0 dB of 0.43 VCCA

0.01%

0.02%

THD+N

RL = 32 Ω, VIN = 0 dB of 0.43 VCCA

0.02%

0.05%

Dynamic range

EIAJ, A-weighted

S/N ratio

EIAJ, A-weighted

(7)

fOUT = 1 kHz, using Audio Precision ™System Two ™, RMS mode with 20 kHz LPF, 400 Hz HPF. Output attenuator = 0 dB,

Sidetone = Mute.

(8)

MIC Amp = 0 dB, Sidetone attenuator = 0 dB, Output attenuator = 0 dB.

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