PCM3793A
PCM3794A
www.ti.com
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS
All specifications at TA = 25°C, VDD = VIO = VCC = VPA = 3.3 V, fS = 48 kHz, system clock = 256 fS, and 16-bit data (unless
otherwise noted).
PCM3793ARHB, PCM3794ARHB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
Audio Data Characteristics
DATA FORMAT
Resolution
16
Bits
I2S, left-,
right-
justified,
DSP
Audio data interface format
Audio data bit length
Audio data format
16
Bits
MSB first,
2s
complement
Sampling frequency (fS)
System clock
5
50
27
40
kHz
VDD < 2 V
VDD > 2 V
MHz
Digital Input/Output
CMOS
compatible
Logic family
VIH
VIL
IIH
0.7 VIO
Input logic level
VDC
µA
0.3 VIO
10
VIN = 3.3 V
VIN = 0 V
Input logic current
Output logic level
IIL
–10
VOH
VOL
IOH = –2 mA
IOL = 2 mA
0.75 VIO
VDC
0.25 VIO
Digital Input to Line Output Through DAC (LOL, LOR, and MONO)
RL = 10 kΩ, ALC = OFF, volume = 0 dB, speaker = powered down, analog mixing = disabled
DYNAMIC PERFORMANCE
2.828
Vp-p
Vrms
dB
Full-scale output voltage
0 dB
1
93
Dynamic range
EIAJ, A-weighted
EIAJ, A-weighted
SNR
Signal-to-noise ratio
Channel separation
86
10
93
dB
91
dB
THD+N Total harmonic distortion + noise 0 dB
Load resistance
0.008%
kΩ
Line Input to Line Output Through Mixing Path (LOL, LOR, and MONO)
RL = 10 kΩ, ALC = OFF, volume = 0 dB, speaker = powered down, analog mixing = enabled
DYNAMIC PERFORMANCE
2.828
1
Vp-p
Vrms
dB
Full-scale input and output
voltage
0 dB
SNR
Signal-to-noise ratio
EIAJ, A-weighted
84
93
3
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