Datasheet

AD9125
Rev. 0 | Page 6 of 56
AC SPECIFICATIONS
T
MIN
to T
MAX
, AVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, I
OUTFS
= 20 mA, maximum sample rate, unless otherwise noted.
Table 4.
Parameter Min Typ Max Unit
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
DAC
= 100 MSPS, f
OUT
= 20 MHz 78 dBc
f
DAC
= 200 MSPS, f
OUT
= 50 MHz 80 dBc
f
DAC
= 400 MSPS, f
OUT
= 70 MHz 69 dBc
f
DAC
= 800 MSPS, f
OUT
= 70 MHz 72 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)
f
DAC
= 200 MSPS, f
OUT
= 50 MHz 84 dBc
f
DAC
= 400 MSPS, f
OUT
= 60 MHz 86 dBc
f
DAC
= 400 MSPS, f
OUT
= 80 MHz 84 dBc
f
DAC
= 800 MSPS, f
OUT
= 100 MHz 81 dBc
NOISE SPECTRAL DENSITY (NSD) EIGHT-TONE, 500 kHz TONE SPACING
f
DAC
= 200 MSPS, f
OUT
= 80 MHz −162 dBm/Hz
f
DAC
= 400 MSPS, f
OUT
= 80 MHz −163 dBm/Hz
f
DAC
= 800 MSPS, f
OUT
= 80 MHz −164 dBm/Hz
W-CDMA ADJACENT CHANNEL LEAKAGE RATIO (ACLR), SINGLE CARRIER
f
DAC
= 491.52 MSPS, f
OUT
= 10 MHz 82 dBc
f
DAC
= 491.52 MSPS, f
OUT
= 122.88 MHz 80 dBc
f
DAC
= 983.04 MSPS, f
OUT
= 122.88 MHz 81 dBc
W-CDMA SECOND ACLR, SINGLE CARRIER
f
DAC
= 491.52 MSPS, f
OUT
= 10 MHz 88 dBc
f
DAC
= 491.52 MSPS, f
OUT
= 122.88 MHz 86 dBc
f
DAC
= 983.04 MSPS, f
OUT
= 122.88 MHz 88 dBc
Table 5. Interface Speeds
Mode Interpolation f
BUS
f
DATA
f
DAC
Byte Mode 1× 250 62.5 62.5
2× (HB1) 250 62.5 125
2× (HB2) 250 62.5 125
4× 250 62.5 250
8× 250 62.5 500
Word Mode 1× 250 125 125
2× (HB1) 250 125 250
2× (HB2) 250 125 250
4× 250 125 500
8× 250 125 1000
Dual-Word Mode 1× 250 250 250
2× (HB1) 250 250 500
2× (HB2) 250 250 500
4× 250 250 1000
8× 125 125 1000