ad1984a Analog Devices, Inc., ad1984a Datasheet - Page 7

• Manufacturer Part Number: ad1984a
• Description: High Definition Audio Soundmax Codec
• Manufacturer: Analog Devices, Inc.

1
HD AUDIO LINK SPECIFICATION
High definition audio signals comply with the High Definition
Audio Specification. Please refer to these specifications at
www.intel.com/standards/hdaudio.
POWER-DOWN STATES
1
2
3
Parameter
POWER SUPPLY
Parameter
Function Node in D0, All Nodes Active
Function Node in D3
Function Node in D3
Codec in RESET
Individual Block Power Savings
Guaranteed but not tested.
Maximum power saving mode; Register 0x31FD, Bit 4.
Test conditions: 30 pF load, 2.0 MHz frequency, 3.3 V A
Powering down the MIC_BIAS powers down all port MIC_BIAS pins. This disables all microphone bias circuits set to 100% or 50%, setting them to the high-Z state. The
0 V and high-Z states remain unaffected by the MIC_BIAS power state.
DAC Pair Powered Down Saves (Each)
ADC Pair Powered Down Saves (Each)
Mixer Power Control (and Associated Amps) Saves
DM_CLK Powered Down Saves
MIC_BIAS Powered Down Saves
Analog (AV
Digital (DV
Digital (DV
Digital I/O (DV
Digital I/O (DV
Power Supply Rejection (Reference to f
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
Power Supply Range
Power Dissipation
Supply Current
DD
CORE
DD
) 3.3 V ± 10%
) 3.3 V ± 5%
) 1.7 through 1.9 V ± 10%
IO
IO
) 3.3 V ± 10%
) 1.5 V ± 5.5%
1
2
3
S
100 mV p-p Signal @ 1 kHz)
VDD.
Rev. 0 | Page 7 of 20 | April 2008
ID
36
15.75
7.5
3
4.5
4.5
0
0
0
VDD
1
Typ (1.7 V)
Min
3.13
2.97
1.615
2.97
1.418
ID
43
17
7.5
3
6
6
0
0
0
VDD
Typ (3.3 V)
Typ
3.30
75.9
23
3.30
141.9
43
1.70
61
36
3.30
3.3
1
1.50
0.08
0.05
80
IA
23
1
1
3
5
3
2
1
0.1
VDD
Max
3.46
3.63
1.995
3.63
1.583
Typ
AD1984A
Unit
V
mW
mA
V
mW
mA
V
mW
mA
V
mW
mA
V
mW
mA
dB
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA