AD9835BRUZ Analog Devices Inc, AD9835BRUZ Datasheet - Page 4

• Manufacturer Part Number: AD9835BRUZ
• Description: IC DDS 10BIT 50MHZ 16-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD9835BRUZ

• Resolution (bits): 10 b
• Master Fclk: 50MHz
• Tuning Word Width (bits): 32 b
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Transmitting Current: 5mA
• Rf Ic Case Style: TSSOP
• No. Of Pins: 16
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 3 - 168 Hours
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD9835EBZ - BOARD EVALUATION FOR AD9835
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Model
AD9835BRU
*RU = Thin Shrink Small Outline Package (TSSOP).
AD9835
ABSOLUTE MAXIMUM RATINGS*
(T
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
AGND to DGND. . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . . . –0.3 V to DVDD + 0.3 V
Analog I/O Voltage to AGND . . . . . –0.3 V to AVDD + 0.3 V
Operating Temperature Range
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Maximum Junction Temperature . . . . . . . . . . . . . . . .+150 C
TSSOP
Lead Temperature, Soldering
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 4500 V
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
A
Industrial (B Version) . . . . . . . . . . . . . . . . –40 C to +85 C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . .+215 C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . .+220 C
= +25 C unless otherwise noted)
JA
Thermal Impedance . . . . . . . . . . . . . . . 158 C/W
Temperature
Range
–40 C to +85 C
FS ADJUST
REFOUT
SDATA
PIN CONFIGURATION
REFIN
DGND
DVDD
MCLK
SCLK
ORDERING GUIDE
1
2
3
4
5
6
7
8
(Not to Scale)
AD9835
TOP VIEW
Package
Description
16-Lead TSSOP RU-16
16
15
14
13
12
11
10
9
COMP
AVDD
IOUT
AGND
PSEL0
PSEL1
FSELECT
FSYNC
Package
Option*
–4–
TERMINOLOGY
Integral Nonlinearity
This is the maximum deviation of any code from a straight line
passing through the endpoints of the transfer function. The end-
points of the transfer function are zero scale, a point 0.5 LSB
below the first code transition (000 . . . 00 to 000 . . . 01)
and full scale, a point 0.5 LSB above the last code transition
(111 . . . 10 to 111 . . . 11). The error is expressed in LSBs.
Differential Nonlinearity
This is the difference between the measured and ideal 1 LSB
change between two adjacent codes in the DAC.
Signal to (Noise + Distortion)
Signal to (Noise + Distortion) is measured signal to noise at the
output of the DAC. The signal is the rms magnitude of the
fundamental. Noise is the rms sum of all the nonfundamental
signals up to half the sampling frequency (f
ing the dc component. Signal to (Noise + Distortion) is depen-
dent on the number of quantization levels used in the digitization
process; the more levels, the smaller the quantization noise.
The theoretical Signal to (Noise + Distortion) ratio for a sine
wave input is given by
where N is the number of bits. Thus, for an ideal 10-bit con-
verter, Signal to (Noise + Distortion) = 61.96 dB.
Total Harmonic Distortion
Total Harmonic Distortion (THD) is the ratio of the rms sum
of harmonics to the rms value of the fundamental. For the
AD9835, THD is defined as
where V
V
sixth harmonic.
Output Compliance
The output compliance refers to the maximum voltage that can
be generated at the output of the DAC to meet the specifica-
tions. When voltages greater than that specified for the output
compliance are generated, the AD9835 may not meet the speci-
fications listed in the data sheet.
Spurious Free Dynamic Range
Along with the frequency of interest, harmonics of the funda-
mental frequency and images of the MCLK frequency are
present at the output of a DDS device. The spurious free dy-
namic range (SFDR) refers to the largest spur or harmonic
present in the band of interest. The wideband SFDR gives the
magnitude of the largest harmonic or spur relative to the magni-
tude of the fundamental frequency in the bandwidth 2 MHz
about the fundamental frequency. The narrow band SFDR gives
the attenuation of the largest spur or harmonic in a bandwidth of
Clock Feedthrough
There will be feedthrough from the MCLK input to the analog
output. Clock feedthrough refers to the magnitude of the
MCLK signal relative to the fundamental frequency in the
AD9835’s output spectrum.
4
50 kHz about the fundamental frequency.
, V
5
and V
Signal to (Noise + Distortion) = (6.02N + 1.76) dB
1
is the rms amplitude of the fundamental and V
THD
6
are the rms amplitudes of the second through the
20 log
(V
2
2
V
3
2
V
V
1
4
2
MCLK
V
5
2
/2) but exclud-
V
6
2
)
2
REV. 0
, V
3
,