AD9951YSVZ Analog Devices Inc, AD9951YSVZ Datasheet - Page 13
![IC DDS DAC 14BIT 1.8V 48-TQFP](/photos/6/63/66397/505-48-tqfp_sml.jpg)
AD9951YSVZ
Manufacturer Part Number
AD9951YSVZ
Description
IC DDS DAC 14BIT 1.8V 48-TQFP
Manufacturer
Analog Devices Inc
Specifications of AD9951YSVZ
Resolution (bits)
14 b
Master Fclk
400MHz
Tuning Word Width (bits)
32 b
Voltage - Supply
1.71 V ~ 1.96 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
Data Rate
25Mbps
Rf Ic Case Style
TQFP
No. Of Pins
48
Supply Voltage Range
1.8V To 3.3V
Operating Temperature Range
-40°C To +105°C
Msl
MSL 3 - 168 Hours
Ic Function
Direct Digital Synthesizer
Digital Ic Case Style
TQFP
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Termination Type
SMD
Ic Generic Number
9951
Base Number
9951
Filter Terminals
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AD9951/PCB - BOARD EVAL FOR AD9951
Lead Free Status / Rohs Status
Compliant
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Company
Part Number
Manufacturer
Quantity
Price
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AD9951YSVZ
Manufacturer:
AD
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DAC Output
The AD9951 incorporates an integrated 14-bit current output
DAC. Unlike most DACs, this output is referenced to AVDD,
not AGND.
Two complementary outputs provide a combined full-scale
output current (I
common-mode noise that might be present at the DAC output,
offering the advantage of an increased signal-to-noise ratio. The
full-scale current is controlled by an external resistor (R
connected between the DAC_R
(AGND_DAC). The full-scale current is proportional to the
resistor value as follows:
The maximum full-scale output current of the combined DAC
outputs is 15 mA, but limiting the output to 10 mA provides the
best spurious-free dynamic range (SFDR) performance. The DAC
output compliance range is AVDD + 0.5 V to AVDD – 0.5 V.
Voltages developed beyond this range will cause excessive DAC
distortion and could potentially damage the DAC output circuitry.
OUT
). Differential outputs reduce the amount of
R
SET
=
39
SET
.
19
pin and the DAC ground
/
I
OUT
SET
)
Rev. 0 | Page 13 of 28
Proper attention should be paid to the load termination to keep the
output voltage within this compliance range.
Serial IO Port
The AD9951 serial port is a flexible, synchronous serial communi-
cations port that allows easy interface to many industry-standard
microcontrollers and microprocessors. The serial I/O port is com-
patible with most synchronous transfer formats, including both the
Motorola 6905/11 SPI® and Intel® 8051 SSR protocols.
The interface allows read/write access to all registers that configure
the AD9951. MSB first or LSB first transfer formats are supported.
The AD9951’s serial interface port can be configured as a single pin
I/O (SDIO), which allows a 2-wire interface or two unidirectional
pins for in/out (SDIO/SDO), which in turn enables a 3-wire inter-
face. Two optional pins, IOSYNC and CS , enable greater flexibility
for system design in the AD9951.
Register Map and Descriptions
The register map is listed in Table 5.
AD9951