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DAC5689IRGCT Scheda tecnica(PDF) 6 Page - Texas Instruments

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Il numero della parte DAC5689IRGCT
Spiegazioni elettronici  16-BIT 800 MSPS 2x-8x INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC)
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

DAC5689IRGCT Scheda tecnica(HTML) 6 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS (AC Specifications)
DAC5689
SLLS989 – SEPTEMBER 2009 .......................................................................................................................................................................................... www.ti.com
Over recommended operating free-air temperature range, AVDD, IOVDD = 3.3 V, DVDD, CLKVDD = 1.8 V, IOUTFS = 20 mA
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG OUTPUT(1)
fDAC
Maximum output update rate
800
MSPS
ts(DAC)
Output settling time to 0.1%
Transition: Code 0x0000 to 0xFFFF
10.4
ns
DAC outputs are updated on falling edge of DAC clock.
tpd
Output propagation delay
2
ns
Does not include Digital Latency (see below).
tr(IOUT)
Output rise time
10% to 90%
220
ps
tf(IOUT)
Output fall time
90% to 10%
220
ps
No Interp, NCO off, QMC off, ISINC = off
109
x2 Interpolation, NCO off, QMC off, ISINC = off
172
x4 Interpolation, NCO off, QMC off, ISINC = off
276
DAC
Digital latency
x8 Interpolation, NCO off, QMC off, ISINC = off
488
clock
cycles
x8 Interpolation, NCO on, QMC off, ISINC = off
512
x8 Interpolation, NCO on, QMC on, ISINC = off
528
x8 Interpolation, NCO on, QMC on, ISINC = on
548
AC PERFORMANCE (2)
×4 Interp, CLK2 = 800 MHz,
FOUT= 10.1 MHz
83
Spurious free dynamic
DAC A+B on,
SFDR
dBc
FOUT= 20.1 MHz
79
range
0 dBFS Single tone, FOUT = FIN
First Nyquist Zone < fDATA/2
×4 Interp, CLK2 = 800 MHz,
NCO= 10 MHz, FOUT= 20.1 MHz
72
DAC A+B on,
NCO= 60 MHz, FOUT= 70.1 MHz
68
0 dBFS Single tone, FIN = 10.1 MHz,
SNR
Signal-to-noise ratio
dBc
FOUT = FIN + NCO
NCO= 140 MHz, FOUT= 150.1 MHz
64
NCO= 290 MHz, FOUT= 300.1 MHz
57
×4 Interp, CLK2 = 800 MHz,
NCO= 40 MHz, FOUT= 51±0.5 MHz
85
Third-order
DAC A+B on,
IMD3
Two-Tone intermodulation
NCO= 60 MHz, FOUT= 71±0.5 MHz
83
dBc
FIN = 10.5 and 11. 5 MHz,
(Each tone at –6 dBFS)
FOUT = FIN + NCO
NCO= 130 MHz, FOUT= 141±0.5 MHz
74
Four-tone Intermodulation
×4 Interp, CLK2 = 800 MHz, DAC A+B on,
IMD
to Nyquist
FIN = 9.8, 10.4, 11.6 and 12.2 MHz (600kHz spacing), NCO = 129 MHz,
73
dBc
(Each tone at –12 dBFS)
FOUT = FIN + NCO = 140±1.2 MHz
×8 Interp, CLK2 = 737.28 MHz,
Single Carrier, FOUT = 23.04 MHz
81
DAC A+B on, FIN = 23 .04 MHz, NCO = off
ACLR
Adjacent channel
×8 Interp, CLK2 = 737.28 MHz,
Single Carrier, FOUT = 70MHz
81
dBc
(3)
leakage ratio
DAC A+B on, FIN = Baseband I/Q,
Single Carrier, FOUT = 140MHz
78
FOUT = NCO
Four Carrier, FOUT = 140MHz
70
×8 Interp, CLK2 = 737.28 MHz,
Single Carrier Noise Floor
101
dBm
Noise floor,
DAC A+B on,
Single Carrier NSD in 1 MHz BW
161
dBm/Hz
noise spectral density
FIN = FOUT = Baseband I/Q,
(NSD)
50 MHz offset, 1 MHz BW
Four Carrier Noise Floor
101
dBm
(3)
Four Carrier NSD in 1 MHz BW
161
dBm/Hz
(1)
Measured differential across IOUTA1 and IOUTA2 or IOUTB1 and IOUTB2 with 25
Ω each to AVDD.
(2)
4:1 transformer output termination, 50
Ω doubly terminated load
(3)
W-CDMA with 3.84 MHz BW, 5-MHz spacing, centered at IF. TESTMODEL 1, 10 ms
6
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Product Folder Link(s): DAC5689


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