Si3000
Rev. 1.1
5
Table 4. AC Characteristics
(VA, VD = 5 V ±5% or 3.3 V ±10%, TA = 0°C to 70°C for K-grade)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
ADC Resolution
—16
—
Bits
ADC Dynamic Range1,2
ADCDR
VIN = 1 kHz, –3 dB
80
84
—
dB
ADC Total Harmonic Distortion3
ADCTHD
VIN = 1 kHz, –3 dB, MIC/LINEI
—
–80
–62
dB
VA, VD = 3.3 V ±10%
VIN = 1 kHz, –3 dB, HDST
—
–80
–62
ADC Total Harmonic Distortion3
ADCTHD
VIN = 1 kHz, –3 dB, MIC/LINEI
—
–80
–76
dB
VA, VD = 5 V ±5%
VIN = 1 kHz, –3 dB, HDST
—
–80
–71
ADC Full Scale Level (0 dB gain)4
VRX
Vin = 1 kHz
—
1
—
Vrms
ADC Programmable Input Gain
–36
—
12
dB
ADC Input Gain Step Size
—
1.5
—
dB
ADC Freq Response5
FRR
Low –3 dB corner
—
33
—
Hz
ADC Freq Response5
FRR
300 Hz
–0.1
—
0
dB
ADC Freq Response
FRR
3400 Hz
–0.2
—
0
dB
Line In Preamp Gain
—
0/10/20
—
dB
Mic In Preamp Gain
—
0/10/20/
30
—dB
ADC Input Resistance
0 dB Preamp Gain
—
20
—
k
Ω
ADC Input Capacitance
—
15
—
pF
ADC Gain Drift
AT
VIN = 1 kHz
—
0.002
—
dB/°C
DAC Resolution
—16
—
Bits
DAC Dynamic Range1,2
DACDR
VIN = 1 kHz, –6 dB
80
84
—
dB
DAC Total Harmonic Distortion3
DACTHD
VIN=1 kHz,–6 dB,LINEO,600
Ω
—
–76
–60
dB
VA, VD = 3.3 V ±10%
VIN=1 kHz,–6 dB, SPKR, 60
Ω
—
–72
–60
VIN=1 kHz,–6 dB, HDST, 600
Ω
—
–80
–70
DAC Total Harmonic Distortion3
DACTHD
VIN=1 kHz,–3 dB,LINEO,600
Ω
—
–76
–65
dB
VA, VD = 5 V ±5%
VIN=1 kHz,–3 dB, SPKR, 60
Ω
—
–72
–65
VIN=1 kHz,–3 dB, HDST, 600
Ω
—
–80
–76
DAC Full Scale Level (0 dB gain)
VRX
—1
—
Vrms
DAC Programmable Output Gain
–36
—
12
dB
Notes:
1. DR = VIN + 20 log (RMS signal/RMS noise). Measurement bandwidth is 300 to 3400 Hz. Valid sample rate ranges
between 4000 and 12000 Hz.
2. 0 dB setting for analog and digital attenuation/gain.
3. THD = 20 log (RMS distortion/RMS signal). Valid sample rate ranges between 4000 and 12000 Hz.
4. At 0dB gain setting, 1 Vrms input corresponds to -1.5 dB of full scale digital output code.
5. These characteristics are determined by external components. See Figure 13.
6. With a 600
Ω load. Output starts clipping with half of full scale digital input, which corresponds to a 0.5 V
rms output.