85

87

89

91

93

95

2.8

3.0

3.2

3.4

3.6

3.8

VCC − Supply Voltage − V

SNR

Dynamic Range

G004

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

2.8

3.0

3.2

3.4

3.6

3.8

VCC − Supply Voltage − V

G003

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

−50

−25

0

25

50

75

100

TA − Free-Air Temperature − °C

G001

85

87

89

91

93

95

−50

−25

0

25

50

75

100

TA − Free-Air Temperature − °C

SNR

Dynamic Range

G002

Not Recommended for New Designs

PCM2903B

SLES228 – DECEMBER 2008

www.ti.com

TYPICAL CHARACTERISTICS: ADC

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

otherwise noted.

TOTAL HARMONIC DISTORTION + NOISE at –1 dB

DYNAMIC RANGE and SNR

vs

vs

FREE-AIR TEMPERATURE

FREE-AIR TEMPERATURE

Figure 1.

Figure 2.

TOTAL HARMONIC DISTORTION + NOISE at –1 dB

DYNAMIC RANGE and SNR

vs

vs

SUPPLY VOLTAGE

SUPPLY VOLTAGE

Figure 3.

Figure 4.

10

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