參數(shù)資料
型號(hào): AD1885
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: AC’97 SoundMAX Codec
中文描述: 16-BIT CONVERTER SUBSYSTEM ADC, SERIAL ACCESS, PDSO28
文件頁數(shù): 4/27頁
文件大小: 291K
代理商: AD1885
–4–
REV. 0
AD1885–SPECIFICATIONS
STATIC DIGITAL SPECIFICATIONS
*
Parameter
Min
0.65
×
DV
DD
Typ
Max
Unit
High-Level Input Voltage (V
IH
): Digital Inputs
Low-Level Input Voltage (V
IL
)
High-Level Output Voltage (V
OH
), I
OH
= 2 mA
Low-Level Output Voltage (V
OL
), I
OL
= 2 mA
Input Leakage Current
Output Leakage Current
V
V
V
V
μ
A
μ
A
0.35
×
DV
DD
0.9
×
DV
DD
0.1
×
DV
DD
10
10
–10
–10
POWER SUPPLY
Parameter
Min
Typ
Max
Unit
Power Supply Range—Analog (AV
DD
)
Power Supply Range—Digital (DV
DD
)
Power Dissipation—5 V/3.3 V
Analog Supply Current—5 V (AV
DD
)
Digital Supply Current—3.3 V (DV
DD
)
Power Supply Rejection (100 mV p-p Signal @ 1 kHz)
*
(At Both Analog and Digital Supply Pins, Both ADCs and DACs)
4.75
3.15
5.25
3.45
V
V
mW
mA
mA
dB
355
50
21
40
CLOCK SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
Input Clock Frequency
Recommended Clock Duty Cycle
24.576
50
MHz
%
40
60
POWER-DOWN MODE
*
DV
DD
(3.3 V)
Typ
AV
DD
(5 V)
Typ
Parameter
Set Bits
Unit
ADC
DAC
ADC and DAC
ADC + DAC + Mixer (Analog CD On)
Mixer
ADC + Mixer
DAC + Mixer
ADC + DAC + Mixer
Analog CD Only (AC-Link On)
Analog CD Only (AC-Link Off)
Standby
Headphone Standby
PR0
PR1
PR1, PR0
LPMIX, PR1, PR0
PR2
PR2, PR0
PR2, PR1
PR2, PR1, PR0
LPMIX, PR5, PR1, PR0
LPMIX, PR1, PR0, PR4, PR5
PR5, PR4, PR3, PR2, PR1, PR0
PR6
20
20
8
8
21
19
19
8
7
0
0
21
44
41
35
26
23
18
15
10
22
12
0.1
38
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
NOTES
*
Guaranteed, not tested.
Output jitter is directly dependent on crystal input jitter.
Specifications subject to change without notice.
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