PCM2903C

SBFS038A – JUNE 2012 – REVISED SEPTEMBER 2015

www.ti.com

7.5 Electrical Characteristics

All specifications at TA = 25°C, VCCC = VCCP1 = VCCP2 = VCCX = VDD = 3.3 V, fS = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless

otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUT/OUTPUT

Host interface

Apply USB Revision 2.0, full speed

Audio data format

USB isochronous data format

INPUT LOGIC

D+, D–

2

VDD

XTI, HID0, HID1, and

0.7 VDD

VDD

High-level input

HID2

VIH

VDC

voltage

SEL0, SEL1

2

5.25

DIN

0.7 VDD

5.25

D+, D–

0.8

XTI, HID0, HID1, and

0.3 VDD

Low-level input

HID2

VIL

VDC

voltage

SEL0, SEL1

0.8

DIN

0.3 VDD

D+, D–, XTI, SEL0,

VIN = 3.3 V

±10

SEL1

High-level input

IIH

μA

current

HID0, HID1, and HID2

VIN = 3.3 V

50

80

DIN

VIN = 3.3 V

65

100

D+, D–, XTI, SEL0,

VIN = 0 V

±10

SEL1

Low-level input

IIL

μA

current

HID0, HID1, and HID2

VIN = 0 V

±10

DIN

VIN = 0 V

±10

OUTPUT LOGIC

D+, D–

2.8

High-level output

VOH

DOUT

IOH = –4 mA

2.8

VDC

voltage

SSPND

IOH = –2 mA

2.8

D+, D–

0.3

Low-level output

VOL

DOUT

IOL = 4 mA

0.5

VDC

voltage

SSPND

IOL = 2 mA

0.5

CLOCK FREQUENCY

Input clock frequency, XTI

11.994

12

12.006

MHz

ADC CHARACTERISTICS

Resolution

8, 16

Bits

Audio data channel

1, 2

Channel

ADC CLOCK FREQUENCY

fS

Sampling frequencies

8, 11.025, 16, 22.05, 32, 44.1, 48

kHz

ADC DC ACCURACY

% of

Gain mismatch, channel-to-channel

±1

±5

FSR

% of

Gain error

±2

±10

FSR

% of

Bipolar zero error

±0

FSR

ADC DYNAMIC PERFORMANCE(1)

VIN = –1 dB

0.01%

0.02%

THD+N

Total harmonic distortion plus noise

VIN = –60 dB

5%

(1)

fIN = 1 kHz, using a System Two™ audio measurement system by Audio Precision™ in RMS mode with a 20-kHz LPF and 400-Hz HPF

in the calculation.

6

Submit Documentation Feedback

Copyright © 2012–2015, Texas Instruments Incorporated

Product Folder Links: PCM2903C