AD1835AS-REEL Analog Devices Inc, AD1835AS-REEL Datasheet - Page 20

• Manufacturer Part Number: AD1835AS-REEL
• Description: IC CODEC 2ADC/8DAC 24 BIT 52MQFP
• Manufacturer: Analog Devices Inc
• Type: Stereo Audior

Specifications of AD1835AS-REEL

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 8
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 105 / 108
• Dynamic Range, Adcs / Dacs (db) Typ: 105 / 108
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-BQFP
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3/4.5V
• Single Supply Voltage (max): 5.5V
• Package Type: MQFP
• Lead Free Status / RoHS Status: Not Compliant

AD1835
Address
15, 14, 13, 12
0010 = DACL1
0011 = DACR1
0100 = DACL2
0101 = DACR2
0110 = DACL3
0111 = DACR3
1000 = DACL4
1001 = DACR4
Address
15, 14, 13, 12
1100
Address
15, 14, 13, 12
1101
Address
15, 14, 13, 12 11
1110
Table VI. DAC Volume Control
R/W
RES RES Reserved Clocking Scaling Peak Readback
0
R/W
RES
11
0
R/W
11
0
R/W
11
0
10
0
RES
10
0
9
0, 0
RES
10
0
RES
10
0
Master/Slave ADC
Aux Mode
9
0 = Slave
1 = Master
DAC Volume
9, 8, 7, 6, 5, 4, 3, 2, 1, 0
0000000000 = 1/1024
0000000001 = 2/1024
0000000010 = 3/1024
1111111110 = 1022/1024
1111111111 = 1023/1024
8, 7, 6
IMCLK
00 = MCLK × 2
01 = MCLK
10 = MCLK × 2/3
11 = MCLK × 2
Dither
9
0 = Disabled
1 = Enabled
Function
Data Format
8, 7, 6
000 = I
001 = RJ
010 = DSP
011 = LJ
100 = Packed 256
101 = Reserved
110 = Auxiliary 256
111 = Reserved
Table VIII. ADC Control 1
Table IX. ADC Control 2
Table X. ADC Control 3
2
S
ADC
5
0 = Disabled Peak Readback 000 = Normal Mode 00 = Normal Mode
1 = Enabled Peak Readback All others reserved
Filter
8
0 = All Pass
1 = High-Pass
–20–
Address
15, 14, 13, 12
0010 = Left ADC 1
1011 = Right ADC
ADC Data-
Function
Word Width
5, 4
00 = 24 Bits
01 = 20 Bits
10 = 16 Bits
11 = Reserved
Function
Function
ADC
Power-Down
7
0 = Normal
1 = Power-Down
R/W RES Six Data Bits
11
Table VII. ADC Peak
DAC
Test Mode
4, 3, 2
3, 2
0, 0
Reserved
10
0
9, 8, 7, 6, 5, 4
000000 = 0.0 dBFS 0000
000001 = –1.0 dBFS
000010 = –2.0 dBFS These four
111111 = –63.0 dBFS
Sample
Rate
6
0 = 48 kHz
1 = 96 kHz
Right
1
0 = On
1 = Mute
Function
ADC Mute
ADC
Test Mode
1, 0
All others reserved
Reserved
5, 4, 3, 2, 1, 0
0, 0, 0, 0, 0, 0
0, 0, 0, 0, 0, 0
Left
0
0 = On
1 = Mute
Four Fixed
Bits
3, 2, 1, 0
bits are
always zero.
REV. B