Datasheet
PCM2903C
www.ti.com
SBFS038 –JUNE 2012
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25°C, V
CCC
= V
CCP1
= V
CCP2
= V
CCX
= V
DD
= 3.3 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unless
otherwise noted.
PCM2903C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DAC CHARACTERISTICS
Resolution 8, 16 Bits
Audio data channel 1, 2 Channel
DAC Clock Frequency
f
S
Sampling frequencies 32, 44.1, 48 kHz
DAC DC Accuracy
% of
Gain mismatch channel-to-channel ±1 ±5
FSR
% of
Gain error ±2 ±10
FSR
% of
Bipolar zero error ±2
FSR
DAC Dynamic Performance
(2)
V
OUT
= 0 dB 0.005 0.016 %
THD+N Total harmonic distortion plus noise
V
OUT
= –60 dB 3 %
Dynamic range EIAJ, A-weighted 87 93 dB
SNR Signal-to-noise ratio EIAJ, A-weighted 90 96 dB
Channel separation 86 92 dB
Analog Output
V
O
Output voltage 0.6 V
CCC
V
PP
Center voltage 0.5 V
CCC
V
Load impedance AC coupling 10 kΩ
–3 dB 250 kHz
LPF frequency response
f = 20 kHz –0.03 dB
DAC Digital Filter Performance
Passband 0.445 f
S
Hz
Stop band 0.555 f
S
Hz
Passband ripple ±0.1 dB
Stop-band attenuation –43 dB
t
d
Delay time 14.3/f
S
s
POWER-SUPPLY REQUIREMENTS
V
DD
,
V
CCC
,
V
CCP1
, Voltage range 3 3.3 3.6 VDC
V
CCP2
,
V
CCX
ADC, DAC operation 54 70 mA
Supply current
Suspend mode
(3)
250 μA
ADC, DAC operation 178 252 mW
P
D
Power dissipation
Suspend mode
(3)
0.83 mW
TEMPERATURE RANGE
Operating temperature range –25 +85 °C
θ
JA
Thermal resistance 100 °C/W
(2) f
OUT
= 1 kHz, using a System Two audio measuerment system by Audio Precision in RMS mode with a 20-kHz LPF and 400-Hz HPF.
(3) Under USB suspend state.
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