DAC5675A Datasheet, PDF (5/26 Pages) Texas Instruments – 14-Bit, 400MSPS Digital-to-Analog Converter

DAC5675A
www.ti.com
SBAS334C – NOVEMBER 2004 – REVISED MARCH 2005
AC ELECTRICAL CHARACTERISTICS
Over operating free-air temperature range. Typical values at +25°C, AV_DD = 3.3V, DV_DD = 3.3V, I_O(FS) = 20mA, differential
transformer-coupled output, 50Ω doubly-terminated load, unless otherwise noted.
PARAMETER
Analog Output
f_CLK
t_s(DAC)
t_PD
t_r(IOUT)
t_f(IOUT)
Output update rate
Output setting time to 0.1%
Output propagation delay
Output rise time, 10% to 90%
Output fall time, 90% to 10%
Output noise⁽¹⁾
AC Linearity
THD
Total harmonic distortion
SFDR
Spurious-free dynamic range
to Nyquist
SFDR
Spurious-free dynamic range
within a window, 5MHz span
ACPR
Adjacent channel power ratio
WCDMA with 3.84MHz BW,
5MHz channel spacing
Two-tone intermodulation to
Nyquist (each tone at -6dBfs)
IMD
Four-tone intermodulation,
15MHz span, missing center
tone (each tone at -16dBfs)
TEST CONDITIONS
Transition: code x2000 to x23_FF
IOUT_FS = 20mA
IOUT_FS = 2mA
f_CLK = 100MSPS, f_OUT = 19.9MHz
f_CLK = 160MSPS, f_OUT = 41MHz
f_CLK = 200MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 20.1MHz
f_CLK = 400MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 140MHz
f_CLK = 100MSPS, f_OUT = 19.9MHz
f_CLK = 160MSPS, f_OUT = 41MHz
f_CLK = 200MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 20.1MHz
f_CLK = 400MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 140MHz
f_CLK = 100MSPS, f_OUT = 19.9MHz
f_CLK = 160MSPS, f_OUT = 41MHz
f_CLK = 200MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 20.1MHz
f_CLK = 400MSPS, f_OUT = 70MHz
f_CLK = 400MSPS, f_OUT = 140MHz
f_CLK = 122.88MSPS, IF = 30.72MHz⁽²⁾
f_CLK = 245.76MSPS, IF = 61.44MHz⁽³⁾
f_CLK = 399.32MSPS, IF = 153.36MHz⁽⁴⁾
f_CLK = 400MSPS, f_OUT1 = 70MHz,
f_OUT2 = 71MHz
f_CLK = 400MSPS, f_OUT1 = 140MHz,
f_OUT2 = 141MHz
f_CLK = 156MSPS, f_OUT = 15.6, 15.8, 16.2,
16.4MHz
f_CLK = 400MSPS, f_OUT = 68.1, 69.3, 71.2,
72MHz
DAC5675A
MIN
TYP
MAX
UNIT
400 MSPS
12
ns
1
ns
300
ps
300
ps
55
pA/√Hz
30
pA/√Hz
73
dBc
72
dBc
68
dBc
72
dBc
71
dBc
58
dBc
73
dBc
73
dBc
70
dBc
73
dBc
74
dBc
60
dBc
88
dBc
87
dBc
82
dBc
87
dBc
82
dBc
75
dBc
73
dB
71
dB
65
dB
73
dBc
62
dBc
82
dBc
74
dBc
(1) Noise averaged up to 400MHz when operating at 400MSPS.
(2) See Figure 9.
(3) See Figure 10.
(4) See Figure 12
5