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AD5066 Fiches technique(PDF) 9 Page - Analog Devices

No de pièce AD5066
Description  Fully Accurate 16-Bit UnBuffered VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD5066 Fiches technique(HTML) 9 Page - Analog Devices

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Preliminary Technical Data
AD5066
Rev. PrB | Page 9 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 4. 16-Lead TSSOP (RU-16)
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
LDAC
Pulsing this pin low allows any or all DAC registers to be updated if the input registers have new data. This
allows all DAC outputs to simultaneously update. Alternatively, this pin can be tied permanently low.
2
SYNC
Active Low Control Input. This is the frame synchronization signal for the input data. When SYNC goes
low, it powers on the SCLK and DIN buffers and enables the input shift register. Data is transferred in on
the falling edges of the next 32 clocks. If SYNC is taken high before the 32nd falling edge, the rising edge
of SYNC acts as an interrupt and the write sequence is ignored by the device.
3
VDD
Power Supply Input. These parts can be operated from 2.7 V to 5.5 V, and the supply should be decoupled
with a 10 μF capacitor in parallel with a 0.1 μF capacitor to GND.
4
VREFB
Dac B reference input .This is the reference voltage input pin for Dac B.
5
VREFA
Dac A reference input .This is the reference voltage input pin for Dac A.
6
VOUTA
Unbuffered analog output voltage from DAC A.
7
VOUTC
Unbuffered analog output voltage from DAC C.
8
POR
Power-on Reset Pin. Tying this pin to GND powers up the part to 0 V. Tying this pin to VDD powers up
the part to midscale.
9
VREFC
Dac B reference input .This is the reference voltage input pin for Dac C.
10
CLR
Asynchronous Clear Input. The CLR input is falling edge sensitive. When CLR is low, all LDAC pulses are
ignored. When CLR is activated, the input register and the DAC register are updated with the data
contained in the CLR code register—zero, midscale, or full scale. Default setting clears the output to 0 V.
11
VREFD
Dac A reference input .This is the reference voltage input pin for Dac D.
12
VOUTD
Unbuffered analog output voltage from DAC D.
13
VOUTB
Unbuffered analog output voltage from DAC B.
14
GND
Ground Reference Point for All Circuitry on the Part.
15
DIN
Serial Data Input. This device has a 32-bit shift register. Data is clocked into the register on the falling
edge of the serial clock input.
16
SCLK
Serial Clock Input. Data is clocked into the input shift register on the falling edge of the serial clock input.
Data can be transferred at rates of up to 50 MHz.


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