Rainbow Electronics AT84AD004 - Manual (Page 9)

9
AT84AD004
5390A–BDC–06/04
Notes: 1. Differential input [-1 dBFS analog input level], gain setting is 0 dB, two input clock signals, no standby mode,
1:1 DMUX, ISA = -50 ps.
2. Measured on the AT84AD004TD-EB Evaluation Board.
Table 3. AC Performances
Parameter Symbol Min Typ Max Unit
AC Performance
Signal-to-noise Ratio
Fs = 500 Msps Fin = 20 MHz
SNR
42 44 dBc
Fs = 500 Msps Fin = 250 MHz 41 43 dBc
Fs = 500 Msps Fin = 500 MHz 42 dBc
Effective Number of Bits
Fs = 500 Msps Fin = 20 MHz
ENOB
7 7.2 Bits
Fs = 500 Msps Fin = 250 MHz 6.7 7.0 Bits
Fs = 500 Msps Fin = 500 MHz 6.8 Bits
Total Harmonic Distortion (First 9 Harmonics)
Fs = 500 Msps Fin = 20 MHz
|THD|
48 54 dBc
Fs = 500 Msps Fin = 250 MHz 47 53 dBc
Fs = 500 Msps Fin = 500 MHz 51 dBc
Spurious Free Dynamic Range
Fs = 500 Msps Fin = 20 MHz
|SFDR|
50 56 dBc
Fs = 500 Msps Fin = 250 MHz 49 55 dBc
Fs = 500 Msps Fin = 500 MHz 54 dBc
Two-tone Inter-modulation Distortion (Single Channel)
F
IN1
= 249 MHz , F
IN2
= 251 MHz at Fs = 500 Msps IMD -54 dBc
Phase matching using auto-calibration and FiSDA
in interlace mode (channel I and Q)
Fin = 250 MHz
Fs = 500 Msps
d
ϕ
-0.7 0 0.7 °
Crosstalk channel I versus channel Q
Fin = 250 MHz, Fs = 500 Msps (2)
Cr -55 dB