AD1955 データシートの表示（PDF） - Analog Devices
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AD1955 Datasheet PDF : 10 Pages
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PRELIMINARY TECHNICAL DATA
AD1955
TEMPERATURE RANGE
Specifications Guaranteed
Functionality Guaranteed
Storage
Specifications subject to change without notice
Min
-40
-55
Typ
25
Max
105
125
Units
OC
OC
OC
POWER
Supplies
Voltage, Digital
Voltage, Analog
Analog Current
Analog Current - Reset
Digital Current
Digital Current - Reset
Dissipation
Operation - Both Supplies
Operation - Analog Supply
Operation - Digital Supply
Power Supply Rejection Ratio
1kHz 300 mV p-p Signal at Analog Supply Pins
20kHz 300 mV p-p Signal at Analog Supply Pins
Specifications subject to change without notice
Min
4.50
4.50
Typ
5
5
17
17
22
2
195
85
110
-77
-72
Max
5.50
5.50
Units
V
V
mA
mA
mA
mA
mW
mW
mW
dB
dB
DIGITAL FILTER CHARACTERISTICS
Sample Rate (kHz)
Passband (kHz)
44.1
DC-20
48
DC-21.8
96
DC-39.95
192
DC-87.2
Specifications subject to change without notice
Stopband (kHz)
24.1-328.7
26.23-358.28
56.9-327.65
117-327.65
Stopband Attenuation (dB)
110
110
115
95
Passband Ripple (dB)
+/- 0.0002
+/- 0.0002
+/- 0.0005
+0/-0.04 (DC-21.8 kHz)
+0/-0.5 (DC-65.4 kHz)
+0/-1.5 (DC-87.2 kHz)
GROUP DELAY
Chip Mode
Group Delay Calculation
INT8x Mode
5553/(128 × FS)
INT4x Mode
5601/(64 × FS)
INT2x Mode
5659/(32 × FS)
Specifications subject to change without notice
Fs
48kHz
96kHz
192kHz
Group Delay
903.8
911.6
921
Units
µs
µs
µs
DIGITAL TIMING (Guaranteed over -40°C to 85°C, AVDD = DVDD = +5.0 V +/- 10%)
tDMP
MCLK Period (FMCLK = 256*FLRCLK)
tDML
MCLK LO Pulse Width (all modes)
tDMH
MCLK HI Pulse Width (all modes)
tDBH
BCLK HI Pulse Width
tDBL
BCLK LO Pulse Width
tDBP
BCLK Period
tDLS
LRCLK Setup
tDLH
LRCLK Hold (DSP Serial Port mode only)
tDDS
SDATA Setup
tDDH
SDATA Hold
tDMP
CCLK Period
tDML
CCLK LO Pulse Width
tDMH
CCLK HI Pulse Width
tCLS
CLATCH Setup
tCLH
CLATCH Hold
tCDS
CDATA Setup
tCDH
CDATA Hold
tRSTL
RST LO Pulse Width
Specifications subject to change without notice.
Min
54
0.4 X tDMP
0.4 X tDMP
20
20
60
20
5
5
10
50
15
15
10
10
10
10
15
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Rev. PrF
-3-
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