Datasheet

PCM2900C
PCM2902C
www.ti.com SBFS039 –SEPTEMBER 2011
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25°C, V
BUS
= 5 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, and 16-bit data, unless otherwise noted.
PCM2900C, PCM2902C
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 frequency 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
(4)
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
CCCI
V
PP
Center voltage 0.5 V
CCCI
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
BUS
Voltage range 4.35 5 5.25 VDC
ADC, DAC operation 56 67 mA
Supply current
Suspend mode
(5)
250 μA
ADC, DAC operation 280 352 mW
P
D
Power dissipation
Suspend mode
(5)
1.25 mW
V
CCCI
,
V
CCP1I
,
V
CCP2I
, Internal power-supply voltage 3.1 3.3 3.5 VDC
V
CCXI
,
V
DDI
TEMPERATURE RANGE
Operating temperature range –25 +85 °C
(4) f
OUT
= 1 kHz, using a System Two audio measurement system by Audio Precision in RMS mode with 20-kHz LPF, 400-Hz HPF.
(5) Under USB suspend state.
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Product Folder Link(s): PCM2900C PCM2902C