PCM2704,PCM2705

PCM2706,PCM2707

SLES081A − JUNE 2003 – REVISED MAY 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

PCM2704DB, PCM2705DB,

PCM2706PJT, PCM2707PJT

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

2

3.3

VIL

Input logic level

–0.3

0.8

VDC

VIH(1)

Input logic level

2

5.5

VDC

VIL(1)

–0.3

0.8

IIH(2)

VIN = 3.3 V

±10

IIL(2)

Input logic current

VIN = 0 V

±10

µA

IIH

Input logic current

VIN = 3.3 V

65

100

µA

IIL

VIN = 0 V

±10

OUTPUT LOGIC

VOH(3)

IOH = –2 mA

2.8

VOL(3)

Output logic level

IOL = 2 mA

0.3

VDC

VOH

Output logic level

IOH = –2 mA

2.4

VDC

VOL

IOL = 2 mA

0.4

CLOCK FREQUENCY

Input clock frequency, XTI

11.994

12

12.006

MHz

fs

Sampling frequency

32, 44.1, 48

kHz

DAC CHARACTERISTICS

Resolution

16

Bits

Audio data channel

1, 2

Channel

DC ACCURACY

Gain mismatch, channel-to-channel

±2

±8 % of FSR

Gain error

±2

±8 % of FSR

Bipolar zero error

±3

±6 % of FSR

DYNAMIC PERFORMANCE(4)

Line(5)

RL > 10 kΩ, self-powered

0.006%

0.01%

THD+N,

V

= 0 dB

Line(5)

RL > 10 kΩ, bus-powered

0.012%

0.02%

THD+N,

VOUT = 0 dB

Headphone

RL = 32 Ω,

self-/bus-powered

0.025%

THD+N, VOUT = –60 dB

2%

Dynamic range

EIAJ, A-weighted

90

98

dB

S/N ratio

EIAJ, A-weighted

90

98

dB

Channel separation

60

70

dB

(1) HOST

(2) D+, D–, HOST, TEST, TEST0, TEST1, DT, PSEL, FSEL, XTI

(3) FUNC0, FUNC1, FUNC2

(4) fIN = 1 kHz, using the System Twot Cascade audio measurement system by Audio Precisiont in the RMS mode with a 20-kHz LPF and 400-Hz

HPF.

(5) THD+N performance varies slightly depending on the effective output load, including dummy load R7, R8 in Figure 31.

System Two and Audio Precision are trademarks of Audio Precision, Inc.