AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 4

• Manufacturer Part Number: AD1985JST
• Description: IC CODEC STEREO 6-DAC 20B 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1985JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 84 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1985
SPECIFICATIONS
Table 1. 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
Table 2.
Parameter
INPUT VOLTAGE
MASTER VOLUME
Table 3.
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
PROGRAMMABLE GAIN AMPLIFIER—ADC
Table 4.
Parameter
STEP SIZE (0 dB TO +22.5 dB)
PGA GAIN RANGE
1
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
)
1
DD
1
DD
)
)
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. A | Page 4 of 48
Min
80
Min
Min
Typ
1.5
46.5
Typ
1
2.83
0.032
0.089
0.1
0.283
0.316
0.894
1
2.83
20
5
Typ
1.5
22.5
Max
7.5
Max
Max
V rms
V p-p
V p-p
V rms
V p-p
V p-p
V p-p
kΩ
pF
dB
dB
Unit
V rms
V rms
V rms
Unit
dB
dB
Unit
dB