AD1981AJST Analog Devices Inc, AD1981AJST Datasheet - Page 3

• Manufacturer Part Number: AD1981AJST
• Description: IC CODEC STEREO MICPREAMP 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1981AJST

• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 4 / 2
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 90
• Voltage - Supply, Analog: 4.65 V ~ 5.25 V
• Voltage - Supply, Digital: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPECIFICATIONS
Parameter
ANALOG-TO-DIGITAL CONVERTERS
DIGITAL-TO-ANALOG CONVERTERS
ANALOG OUTPUT
STATIC DIGITAL SPECIFICATIONS
POWER SUPPLY
CLOCK SPECIFICATIONS
Input Clock Frequency
Recommended Clock Duty Cycle
Resolution
Total Harmonic Distortion (THD)
Dynamic Range
Signal-to-Intermodulation Distortion (CCIF Method)
ADC Crosstalk
Gain Error
Interchannel Gain Mismatch (Difference of Gain Errors)
ADC Offset Error
Resolution
Total Harmonic Distortion (THD) LINE_OUT
Total Harmonic Distortion (THD) HP_OUT
Dynamic Range
Signal-to-Intermodulation Distortion (CCIF Method)
Gain Error (Actual Output Full-Scale Voltage Relative to Nominal
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R,
Total Audible Out-of-Band Energy (Measured from 0.6 × F
Full-Scale Output Voltage; LINE_OUT and MONO_OUT
Output Impedance
External Load Impedance
Output Capacitance
External Load Capacitance
Full-Scale Output Voltage; HP_OUT (0 dB Gain)
External Load Capacitance
External Load Impedance
V
V
V
Mute Click
High Level Input Voltage (V
Low Level Input Voltage (V
High Level Output Voltage (V
Low Level Output Voltage (V
Input Leakage Current
Output Leakage Current
Power Supply Range – Analog (AV
Power Supply Range – Digital (DV
Power Dissipation – 5 V/3.3 V
Analog Supply Current – 5 V (AV
Digital Supply Current – 3.3 V(DV
Power Supply Rejection (100 mV p-p Signal @ 1 kHz)
REF
REFOUT
REFOUT
(–60 dB Input THD+N Referenced to Full Scale, A-Weighted)
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
LINE_IN to Other
(–60 dB Input THD+N Referenced to Full Scale, A-Weighted)
Output Full-Scale)
Zero L, Measure L_OUT)
(Muted Output Minus Unmuted Midscale DAC Output)
(At Both Analog and Digital Supply Pins, Both ADCs and DACs)
(selectable to 3.70 V nominal)
Current Drive
2
(Full-Scale Span Relative to Nominal Input Voltage)
1
1
1
1
1
1
1
1
IL
IH
1
)
OL
OH
): Digital Inputs
), I
), I
DD
OL
DD
DD
DD
OH
)
)
)
)
= 2 mA
= 2 mA
1
1
1
S
to 20 kHz)
1
10
32
2.05
0.65 × DVDD
0.9 × DVDD
–10
–10
4.65
3.15
Min
80
85
40
Typ
16
–84
85
85
–80
–100
20
–85
–75
90
–100
± 10
–40
1
2.83
15
1
2.25
2.25
± 5
40
24.576
50
Max
–80
± 10
± 0.5
± 5
± 0.7
–80
800
100
100
2.45
5
0.35 × DVDD
0.1 × DVDD
10
10
5.25
3.45
555
78
50
60
AD1981A
Unit
Bits
dB
dB
dB
dB
dB
%
dB
mV
Bits
dB
dB
dB
dB
%
dB
dB
dB
Vrms
Vp-p
Ω
kΩ
pF
pF
Vrms
pF
Ω
V
V
mA
mV
V
V
V
V
µA
µA
V
V
mW
mA
mA
dB
MHz
%