PCM2904

PCM2906

SLES042A − JUNE 2002 − REVISED JUNE 2004

www.ti.com

3

ELECTRICAL CHARACTERISTICS

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

PARAMETER

TEST CONDITIONS

PCM2904DB, PCM2906DB

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital Input/Output

Host interface

Apply USB Revision 1.1, full speed

Audio data format

USB isochronous data format

Input Logic

VIH(1)

2

3.3

VIL(1)

0.8

VIH(2) (3)

2.52

3.3

VIL(2) (3)

Input logic level

0.9

Vdc

VIH(4)

Input logic level

2

5.25

Vdc

VIL(4)

0.8

VIH(5)

2.52

5.25

VIL(5)

0.9

IIH(1)(2)(4)

VIN = 3.3 V

±10

IIL(1)(2)(4)

VIN = 0 V

±10

IIH(3)

Input logic current

VIN = 3.3 V

50

80

µA

IIL(3)

Input logic current

VIN = 0 V

±10

µA

IIH(5)

VIN = 3.3 V

65

100

IIL(5)

VIN = 0 V

±10

Output Logic

VOH(1)

2.8

VOL(1)

0.3

VOH(6)

Output logic level

IOH = –4 mA

2.8

Vdc

VOL(6)

Output logic level

IOL = 4 mA

0.5

Vdc

VOH(7)

IOH = −2 mA

2.8

VOL(7)

IOL = 2 mA

0.5

Clock Frequency

Input clock frequency, XTI

11.994

12.000

12.006

MHz

ADC Characteristics

Resolution

8, 16

bits

Audio data channel

1, 2

channel

Clock Frequency

fs

Sampling frequency

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

kHz

DC Accuracy

Gain mismatch, channel-to-channel

±1

±5 % of FSR

Gain error

±2

±10 % of FSR

Bipolar zero error

±0

% of FSR

(1) Pins 1, 2: D+, D–

(2) Pin 21: XTI

(3) Pins 5, 6, 7: HID0, HID1, HID2

(4) Pins 8, 9: SEL0, SEL1

(5) Pin 24: DIN

(6) Pin 25: DOUT

(7) Pin 28: SSPND