AD1857/AD1858–SPECIFICATIONS
TEST CO ND ITIO NS UNLESS O TH ERWISE NO TED
Supply Voltages (AVDD, DVDD
Ambient T emperature
)
+5.0 V
25°C
Input Clock (FMCLK
Input Signal
)
11.2896 MHz (256 × FS Mode)
1.0013 kHz
–0.5 dB Full Scale
44.1 kHz
20 Hz to 20 kHz
18 Bits
Input Sample Rate
Measurement Bandwidth
AD1857 Input Data Wordwidth
AD1858 Input Data Wordwidth
Load Capacitance
16 Bits
100 pF
Load Impedance
47 kΩ
Input Voltage HI (VIH
)
2.4 V
Input Voltage LO (VIL)
0.8 V
I2S-Justified Mode (Ref. Figure 7) for AD1857, Right-Justified Mode (Ref. Figure 8) for AD1858.
Performance of the right and left channels are identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications).
Values in bold typeface are tested, all others are guaranteed, not tested.
ANALO G P ERFO RMANCE
Min
Typ
Max
Units
AD1857 Resolution
AD1858 Resolution
18
16
Bits
Bits
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No A-Weight Filter
With A-Weight Filter
91
94
–90
0.003
dB
dB
dB
%
T otal Harmonic Distortion + Noise
–85
0.006
Analog Outputs
Single-Ended Output Range (± Full Scale)
Output Impedance at Each Output Pin
Output Capacitance at Each Output Pin
Out-of-Band Energy (0.5 × FS to 100 kHz)
CMOUT
2.8
3.0
<200
3.2
V p-p
Ω
pF
dB
V
20
–72.5
2.4
2.1
2.25
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Crosstalk (EIAJ method)
Interchannel Phase Deviation
Mute Attenuation
±3.0
0.01
150
–120
±0.1
–100
؎7.5
؎0.2
300
%
dB
ppm/°C
dB
Degrees
dB
–100
–90
De-emphasis Gain Error
±0.1
dB
D IGITAL I/O
Min
Max
Units
Input Voltage HI (VIH
)
2.4
V
Input Voltage LO (VIL)
0.8
10
10
20
V
Input Leakage (IIH @ VIH = 2.4 V)
Input Leakage (IIL @ VIL = 0.8 V)
Input Capacitance
µA
µA
pF
REV. 0
–2–
ADI [ ADI ]
