AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 6

• 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
ANALOG OUTPUT
Table 9.
Parameter
FULL-SCALE OUTPUT VOLTAGE: LINE OUT, MONO OUT, CENTER, LFE
FULL-SCALE OUTPUT VOLTAGE: HP_OUT
V
V
V
V
V
MUTE CLICK (MUTED OUTPUT UNMUTED MIDSCALE DAC OUTPUT)
Note that setting V
with a stereo microphone application circuit.
STATIC DIGITAL SPECIFICATIONS
Table 10.
Parameter
DIGITAL INPUTS/OUTPUTS
INPUT LEAKAGE CURRENT
OUTPUT LEAKAGE CURRENT
INPUT/OUTPUT PIN CAPACITANCE
POWER SUPPLY
Table 11.
Parameter
POWER SUPPLY RANGE—ANALOG (AV
POWER SUPPLY RANGE—DIGITAL (DV
POWER DISSIPATION—5 V/3.3 V
POWER SUPPLY REJECTION (100 mV p-p SIGNAL @ 1 kHz)
1
Guaranteed, not tested.
REF
REFOUT
REFOUT
REFOUT
REFOUT
High Level Input Voltage (V
Low Level Input Voltage (V
High Level Output Voltage (V
Low Level Output Voltage (V
Output Impedance
External Load Impedance
Output Capacitance
External Load Capacitance
External Load Capacitance
External Load Impedance
(VREFH, VREFD = 00 in REGISTER 0x76)
(VREFH, VREFD = 10)
(VREFH, VREFD = 11)
CURRENT DRIVE
REFOUT
to 0 V reduces crosstalk when Center/LFE is sharing the MIC jack. The Center/LFE crosstalk should be better than −60 dB at 100 Hz when sharing
1
1
IL
IH
1
1
)
)
OL
1
OH
), I
), I
OL
OH
= 2 mA
DD
= 2 mA
DD
)
)
1
Rev. A | Page 6 of 48
Min
2
32
2.1
Min
0.65 × DV
0.9 × DV
–10
–10
Min
4.5
2.97
DD
DD
Typ
1
2.83
300
10
15
1
2.83
2.25
2.25
3.70
0.0
±5
Typ
Typ
465
40
Max
500
1000
1000
2.4
5
Max
0.35 × DV
0.1 × DV
+10
+10
7.5
Max
5.5
3.63
DD
DD
Unit
V rms
V p-p
Ω
kΩ
pF
pF
V rms
V p-p
pF
Ω
V
V
V
V
mA
mV
Unit
V
V
V
V
µA
µA
pF
Unit
V
V
mW
dB