AD1985 Analog Devices, AD1985 Datasheet - Page 4

• Manufacturer Part Number: AD1985
• Description: AC'97 2.3 Soundmax Codec W/jack Sensing
• Manufacturer: Analog Devices

AD1985
AD1985—SPECIFICATIONS
Test Conditions unless Otherwise Noted
Parameter
Temperature
Digital Supply (DV
Analog Supply (AV
Sample Rate (f
Input Sine Wave Signal
Analog Output Pass-Band
DAC Test Conditions
ADC Test Conditions
Clock
ANALOG INPUT
Parameter
INPUT VOLTAGE
1
MASTER VOLUME
Parameter
Step Size (Line Out, Mono Out, Surround Out, Center, LFE)
Output Attenuation Range (0 dB to –46.5 dB)
Mute Attenuation of 0 dB Fundamental
1
PROGRAMMABLE GAIN AMPLIFIER—ADC
Parameter
Step Size (0 dB to +22.5 dB)
PGA Gain Range Span
Guaranteed, not tested.
Guaranteed, not tested.
LINE_IN, CD, AUX, PHONE_IN
MIC_IN with +30 dB Preamp
MIC_IN with +20 dB Preamp
MIC_IN with +10 dB Preamp
MIC_IN with 0 dB Preamp
Input Impedance
Input Capacitance
S
)
DD
DD
1
)
)
1
Value/Condition
25
3.3
5.0
48
1,008
20 to 20,000
Calibrated
Output –3 dB relative to full scale
10 kΩ output load: line
32 Ω output load: headphone
2 kΩ output load: center and LFE
47.5 kΩ output load: mono
Calibrated
0 dB PGA gain
Input –3 dB relative to full scale
24.576 MHz
1
Unit
°C
V
V
kHz
Hz
Hz
Rev. 0 | Page 4 of 48
80
Min
Min
Min
1
Typ
2.83
0.032
0.089
0.1
0.283
0.316
0.894
1
2.83
20
5
Typ
1.5
46.5
Typ
1.5
22.5
Max
7.5
Max
Max
Unit
V rms
V p-p
V rms
V p-p
V rms
V p-p
V rms
V p-p
V rms
V p-p
kΩ
pF
Unit
dB
dB
dB
Unit
dB
dB