AD1857/AD1858
PACKAGE CHARACTERISTICS
Min
Typ
Max
Units
θ
JA
(Thermal Resistance [Junction-to-Ambient])
θ
JC
(Thermal Resistance [Junction-to-Case])
DIGITAL FILTER CHARACTERISTICS
Min
195
13
°C/W
°C/W
Max
Units
Passband Ripple
Stopband
1
Attenuation
48 kHz F
S
Passband
Stopband
44.1 kHz F
S
Passband
Stopband
32 kHz F
S
Passband
Stopband
Other F
S
Passband
Stopband
Group Delay
Group Delay Variation
ANALOG FILTER CHARACTERISTICS
±
0.045
62
0
26.688
0
24.520
0
17.792
0
0.556
21.312
6117
19.580
5620
14.208
4078
0.444
127.444
40/F
S
0
dB
dB
kHz
kHz
kHz
kHz
kHz
kHz
F
S
F
S
sec
µs
Min
Typ
Max
Units
Passband Ripple
Stopband Attenuation (at 64
×
F
S
)
–0.075
58
dB
dB
NOTES
1
Stopband nominally repeats itself at multiples of 128
×
F
S
, where F
S
is the input word rate. Thus the digital filter will attenuate to 62 dB across the frequency
spectrum, except for a range
±
0.55
×
F
S
wide at multiples of 128
×
F
S
.
Specifications subject to change without notice.
ORDERING GUIDE
Model
Temperature
Package
Description
Package
Option*
PIN CONFIGURATION
MCLK 1
PD/RST
2
20 SDATA
19 BCLK
18 LRCLK
AD1857JRS
AD1857JRSRL
AD1858JRS
AD1858JRSRL
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
20-Lead SSOP
RS-20
RS-20 on
13" Reels
RS-20
RS-20 on
13" Reels
MODE 3
NC 4
DEEMP 5
AD1857
AD1858
17 DV
DD
16 DGND
TOP VIEW 15 MUTE
384/256 6
(Not to Scale)
14 AV
DD
AV
DD
7
OUTL 8
AGND 9
CMOUT 10
13 OUTR
12 AGND
11 FILT
*RS = Shrink Small Outline
NC = NO CONNECT
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD1857/AD1858 feature proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
–4–
REV. 0
AD [ ANALOG DEVICES ]
