AD1955ARS Analog Devices Inc, AD1955ARS Datasheet - Page 15

• Manufacturer Part Number: AD1955ARS
• Description: IC DAC AUDIO MULTIBIT 28-SSOP
• Manufacturer: Analog Devices Inc

Specifications of AD1955ARS

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16, 24
• Data Interface: Serial
• Number Of Converters: 2
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 210mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• For Use With: EVAL-AD1955EBZ - BOARD EVAL FOR AD1955
• Settling Time: -

REV. 0
SDATA
SDATA
SDATA
SDATA
LRCLK
LRCLK
LRCLK
LRCLK
BCLK
BCLK
BCLK
BCLK
RIGHT-JUSTIFIED
LEFT-JUSTIFIED
I
NOTES
1. DSP MODE DOES NOT IDENTIFY CHANNEL.
2. LRCLK NORMALLY OPERATES AT
3. BCLK FREQUENCY IS NORMALLY 64
2
S-JUSTIFIED
L/RCLK
SDATA
SDATA
SDATA
MODE
MODE
MSB
MODE
BCLK
MSB
MSB
t
DBH
MSB
t
t
DBL
t
DDS
DLS
12-BIT CLOCKS
16-BIT CLOCKS
8-BIT CLOCKS
(24-BIT DATA)
(20-BIT DATA)
(16-BIT DATA)
MSB
LEFT CHANNEL
LEFT CHANNEL
LEFT CHANNEL
f
t
S
DDH
EXCEPT FOR DSP MODE, WHICH IS 2
LRCLK BUT MAY BE OPERATED IN BURST MODE.
t
DBP
RIGHT-JUSTIFIED MODE – SELECT NUMBER OF BITS PER CHANNEL
t
Figure 1. Supported Serial Data Formats
DDS
MSB-1
LSB
MSB
LEFT-JUSTIFIED MODE – 16 TO 24 BITS PER CHANNEL
Figure 2. Serial Data Port Timing
t
DDH
DSP MODE – 16 TO 24 BITS PER CHANNEL
I
2
S MODE –16 TO 24 BITS PER CHANNEL
LSB
LSB
–15–
1/
f
S
f
S
.
MSB
t
DDS
MSB
MSB
MSB
t
DDH
MSB
RIGHT CHANNEL
RIGHT CHANNEL
RIGHT CHANNEL
LSB
t
DDS
LSB
t
DDH
LSB
LSB
AD1955
LSB