AD1847
ANALOG-TO-DIGITAL CONVERTERS
Min
Resolution
Dynamic Range (–60 dB Input, THD+N Referenced to Full Scale, A-Weighted)
THD+N (Referenced to Full Scale)
Signal-to-Intermodulation Distortion†
ADC Crosstalk†
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
Line1 to Line2 (Input Line1, Ground and Select Line2, Read Both Channels)
Line to AUX1
Line to AUX2
Line to DAC
Gain Error (Full-Scale Span Relative to V
REFI
)
Interchannel Gain Mismatch (Difference of Gain Errors)
DC Offset
DIGITAL-TO-ANALOG CONVERTERS
Typ
16
Max
Units
Bits
dB
%
dB
dB
dB
dB
dB
dB
dB
%
dB
LSB
Units
Bits
dB
%
dB
dB
%
dB
dB
dB
dB
Units
dB
dB
dB
Units
dB
dB
dB
Units
V rms
V p-p
Ω
kΩ
pF
pF
V
µA
V
dB
mV
70
0.040
–68
83
–80
–80
–80
–80
–80
±
10
±
0.2
±
55
Min
Typ
16
76
0.025
–72
86
±
10
±
0.2
–80
–50
–55
Max
1.7
2.0
95
Max
1.7
2.0
95.5
Max
2.20
600
15
100
2.50
Max
Resolution
Dynamic Range (–60 dB Input, THD+N Referenced to Full Scale, A-Weighted)
THD+N (Referenced to Full Scale)
Signal-to-Intermodulation Distortion†
Gain Error (Full-Scale Span Relative to V
REFI
)
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk† (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT)
Total Out-of-Band Energy† (Measured from 0.6 F
S
to 100 kHz)
Audible Out-of-Band Energy (Measured from 0.6 F
S
to 22 kHz, Tested at F
S
= 5.5 kHz)
DAC ATTENUATOR
Min
Step Size (0 dB to –22.5 dB) (Tested at Steps 0 dB, –19.5)
Step Size (–24 dB to –94 dB)
Output Attenuation Range Span†
DIGITAL MIX ATTENUATOR
Typ
1.5
1.5
1.3
1.0
–93
Min
Typ
1.5
1.5
Step Size (0 dB to –22.5 dB) (Tested at Steps 0 dB, –19.5)
Step Size (–24 dB to –94 dB)
Output Attenuation Range Span†
ANALOG OUTPUT
1.3
1.0
–93.5
Typ
0.707
2
Min
Full-Scale Line Output Voltage
V
REFI
= 2.35*
Line Output Impedance†
External Load Impedance
Output Capacitance†
External Load Capacitance
V
REF
(Clock Running)
V
REF
Current Drive
V
REFI
Mute Attenuation of 0 dB
Fundamental† (LOUT)
Mute Click†
(|Muted Output Minus Unmuted
Midscale DAC Output|)
1.80
10
2.00
100
2.35
–80
8
*Full-scale line output voltage scales with V
REF
(e.g., V
OUT
(typ) – 2.0 V
†Guaranteed, Not Tested.
(V
REF
/2.35)).
REV. B
–3–
AD [ ANALOG DEVICES ]
