AD5323ARUZ Analog Devices Inc, AD5323ARUZ Datasheet - Page 20

• Manufacturer Part Number: AD5323ARUZ
• Description: IC,D/A CONVERTER,DUAL,12-BIT,CMOS,TSSOP,16PIN
• Manufacturer: Analog Devices Inc

Specifications of AD5323ARUZ

• Settling Time: 8µs
• Number Of Bits: 12
• Data Interface: Serial
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 2.5mW
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Number Of Channels: 2
• Resolution: 12b
• Conversion Rate: 125KSPS
• Interface Type: SER 3W SPI QSPI UW
• Single Supply Voltage (typ): 3.3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Architecture: Resistor-String
• Power Supply Requirement: Single
• Output Type: Voltage
• Single Supply Voltage (min): 2.5V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5303/AD5313/AD5323
MICROPROCESSER INTERFACING
AD5303/AD5313/AD5323 TO ADSP-2101
INTERFACE
Figure 35 shows a serial interface between the AD5303/AD5313/
AD5323 and the ADSP-2101. The ADSP-2101 should be set up
to operate in the SPORT transmit alternate framing mode. The
ADSP-2101 sport is programmed through the SPORT control
register and should be configured as follows: internal clock
operation, active-low framing, 16-bit word length. Transmission
is initiated by writing a word to the Tx register after the SPORT
has been enabled.
AD5303/AD5313/AD5323 TO 68HC11/68L11
INTERFACE
Figure 36 shows a serial interface between the AD5303/
AD5313/AD5323 and the 68HC11/68L11 microcontroller.
SCK of the 68HC11/68L11 drives the SCLK of the AD5303/
AD5313/AD5323, while the MOSI output drives the serial data
line (DIN) of the DAC. The SYNC signal is derived from a port
line (PC7). The setup conditions for correct operation of this
interface are as follows: the 68HC11/68L11 should be con-
figured so that its CPOL bit is a 0 and its CPHA bit is a 1.
When data is being transmitted to the DAC, the SYNC line
is taken low (PC7). When the 68HC11/68L11 is configured
as previously mentioned, data appearing on the MOSI output
is valid on the falling edge of SCK. Serial data from the 68HC11/
68L11 is transmitted in 8-bit bytes with only eight falling clock
edges occurring in the transmit cycle. Data is transmitted MSB
first. To load data to the AD5303/AD5313/ AD5323, PC7 is left
low after the first eight bits are transferred and a second serial
write operation is performed to the DAC; PC7 is taken high at
the end of this procedure.
Figure 36. AD5303/AD5313/AD5323 to 68HC11/68L11 Interface
Figure 35. AD5303/AD5313/AD5323 to ADSP-2101 Interface
*ADDITIONAL PINS OMITTED FOR CLARITY
*ADDITIONAL PINS OMITTED FOR CLARITY
68HC11/68L11*
ADSP-2101
SCLK
MOSI
SCK
PC7
TFS
DT
SYNC
DIN
SCLK
SYNC
SCLK
DIN
AD5323*
AD5303/
AD5313/
AD5303/
AD5313/
AD5323*
Rev. B | Page 20 of 28
AD5303/AD5313/AD5323 TO 80C51/80L51
INTERFACE
Figure 37 shows a serial interface between the AD5303/
AD5313/AD5323 and the 80C51/80L51 microcontroller. The
setup for the interface is as follows: TXD of the 80C51/80L51
drives SCLK of the AD5303/AD5313/AD5323, while RXD
drives the serial data line of the part. The SYNC signal is again
derived from a bit programmable pin on the port. In this case,
port line P3.3 is used. When data is to be transmitted to the
AD5303/AD5313/AD5323, P3.3 is taken low. The 80C51/80L51
transmits data only in 8-bit bytes; thus only eight falling clock
edges occur in the transmit cycle. To load data to the DAC, P3.3
is left low after the first eight bits are transmitted and a second
write cycle is initiated to transmit the second byte of data. P3.3
is taken high following the completion of this cycle. The 80C51/
80L51 output the serial data in a format that has the LSB first.
The AD5303/AD5313/AD5323 require data with MSB as the
first bit received. The 80C51/80L51 transmit routine should
take this into account.
AD5303/AD5313/AD5323 TO MICROWIRE
INTERFACE
Figure 38 shows an interface between the AD5303/AD5313/
AD5323 and any MICROWIRE-compatible device. Serial
data is shifted out on the falling edge of the serial clock and
is clocked into the AD5303/AD5313/AD5323 on the rising
edge of the SK.
Figure 37. AD5303/AD5313/AD5323 to 80C51/80L51 Interface
Figure 38. AD5303/AD5313/AD5323 to MICROWIRE Interface
*ADDITIONAL PINS OMITTED FOR CLARITY.
*ADDITIONAL PINS OMITTED FOR CLARITY.
80C51/80L51*
MICROWIRE*
P3.3
RXD
TXD
CS
SK
SO
SYNC
SCLK
DIN
SYNC
SCLK
DIN
AD5323*
AD5323*
AD5303/
AD5313/
AD5303/
AD5313/