DAC5672
www.ti.com
SLAS440–NOVEMBER 2004
ELECTRICAL CHARACTERISTICS
AC specifications over TA, AVDD = DVDD = 3.3 V, IOUTFS = 20 mA, independent gain set mode, differential 1:1 impedance
ratio transformer coupled output, 50-Ω doubly terminated load (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analog Output
fclk
ts
tr
Maximum output update rate
Output settling time to 0.1% (DAC)
Output rise time 10% to 90% (OUT)
Output fall time 90% to 10% (OUT)
Output noise
200
MSPS
ns
Mid-scale transition
20
1.4
1.5
55
ns
tf
ns
IOUTFS = 20 mA
IOUTFS = 2 mA
pA/√Hz
pA/√Hz
30
AC Linearity (estimates based on measurements of preliminary parts)
SFDR
Spurious-free dynamic range
1st Nyquist zone, TA = 25°C,
fDATA = 50 MSPS, fOUT = 1 MHz,
IOUTFS = 0 dB
83
80
79
dBc
dBc
dBc
1st Nyquist zone, TA = 25°C,
fDATA = 50 MSPS, fOUT = 1 MHz,
IOUTFS = -6 dB
1st Nyquist zone, TA = 25°C,
fDATA = 50 MSPS, fOUT = 1 MHz,
IOUTFS = -12 dB
1st Nyquist zone, TA = 25°C,
fDATA = 100 MSPS, fOUT = 5 MHz
84
79
75
72
77
70
75
dBc
dBc
dBc
dBc
dB
1st Nyquist zone, TA = 25°C,
fDATA = 100 MSPS, fOUT = 20 MHz
1st Nyquist zone, TMIN to TMAX
fDATA = 200 MSPS, fOUT = 20 MHz
,
68
1st Nyquist zone, TA = 25°C,
fDATA = 200 MSPS, fOUT = 41 MHz
SNR
Signal-to-noise ratio
1st Nyquist zone, TA = 25°C,
fDATA = 100 MSPS, fOUT = 5 MHz
1st Nyquist zone, TA = 25°C,
fDATA = 160 MSPS, fOUT = 20 MHz
dB
ACLR
Adjacent channel leakage ratio
W-CDMA signal with 3.84-MHz
Bandwidth, fDATA = 61.44 MSPS,
IF = 15.360 MHz
dB
W-CDMA signal with 3.84-MHz
Bandwidth, fDATA = 122.88 MSPS,
IF = 30.72 MHz
73
78
78
65
79
dB
dB
W-CDMA signal with 3.84-MHz
Bandwidth, fDATA = 61.44 MSPS,
Baseband
W-CDMA signal with 3.84-MHz
Bandwidth, fDATA = 122.88 MSPS,
Baseband
dB
IMD3
Third-order two-tone intermodulation Each tone at -6 dBFS, TA = 25°C,
fDATA = 200 MSPS,
dBc
dBc
fOUT = 45.4 MHz and 46.4 MHz
Each tone at -6 dBFS, TA = 25°C,
fDATA = 100 MSPS,
fOUT = 15.1 MHz and 16.1 MHz
6