AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 7

• 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

POWER-DOWN STATES
Table 12.
Parameter
FULL POWER-UP
ADC
FRONT DAC
CENTER DAC
SURROUND DAC
LFE DAC
ADC + ALL DACs
MIXER
ADC + MIXER
ALL DACS + MIXER
ADC + ALL DACS + MIXER
STANDBY
HEADPHONE STANDBY
CLOCK SPECIFICATIONS
Table 13.
Parameter
INPUT CLOCK FREQUENCY (XTAL MODE OR CLOCK OSCILLATOR)
INPUT CLOCK FREQUENCY (REFERENCE CLOCK MODE)
INPUT CLOCK FREQUENCY (USB CLOCK MODE)
RECOMMENDED CLOCK DUTY CYCLE
1
2
Currents measured with V
PR bits are controlled in Registers 0x2A and 0x26.
REFOUT
unloaded.
1
000
100
111
000
000
111
111
PR[K:I]
000
000
001
010
111
000
2
PR[6:0]
000 0000
000 0001
000 0010
000 0000
000 0000
000 0000
000 0011
000 0100
000 0101
000 0110
000 0111
011 1111
100 0000
Rev. A | Page 7 of 48
2
Min
40
I DV
55.5
47.4
49.5
55.5
49.0
55.1
15.8
55.5
47.4
34.1
14.3
0.114
55.5
DD
(3.3 V) Typ
Typ
24.576
14.31818
48.000
50
I AV
56.0
49.9
47.9
56.0
47.5
56.0
24.2
34.3
27.4
10.0
2.5
0.004
48.3
Max
60
DD
(5 V) Typ
AD1985
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Unit
MHz
MHz
MHz
%