Analog Devices AD9273, Руководство пользователя

Страница: 6 / 49

AD9273
Rev. B | Page 5 of 48
AD9273-25 AD9273-40 AD9273-50
Parameter
1
Conditions Min Typ Max Min Typ Max Min Typ Max Unit
AAF Bandwidth
Tolerance
In range ±10 ±10 ±10 %
Group Delay
Variation
f = 1 MHz to
18 MHz,
GAIN+ = 0 V to
1.6 V ±2 ±2 ±2 ns
Input-Referred
Noise Voltage
LNA gain =
15.6 dB/
17.9 dB/
21.3 dB,
R
FB
= ∞
1.94/1.64/1.38 1.94/1.64/1.38 1.94/1.64/1.38 nV/√Hz
Noise Figure LNA gain =
15.6 dB/
17.9 dB/
21.3 dB
Active Termina-
tion Matched
R
S
= 50 Ω,
R
FB
= 200 Ω/
250 Ω/350 Ω
10.3/8.7/6.8 10.3/8.6/6.7 10.3/8.6/6.7 dB
Unterminated R
FB
= ∞ 7.1/6.0/4.8 7.1/5.9/4.8 7.1/5.9/4.8 dB
Correlated Noise
Ratio
No signal,
correlated/
uncorrelated −30 −30 −30 dB
Output Offset −35 +35 −35 +35 −35 +35 LSB
Signal-to-Noise
Ratio (SNR)
f
IN
= 5 MHz at
−10 dBFS,
GAIN+ = 0 V
65.5 64 63.5 dBFS
f
IN
= 5 MHz at
−1 dBFS,
GAIN+ = 1.6 V
58.5 57 56.5 dBFS
Harmonic Distortion
Second
Harmonic
f
IN
= 5 MHz at
−10 dBFS,
GAIN+ = 0 V
−55 −52 −52 dBc
f
IN
= 5 MHz at
−1 dBFS,
GAIN+ = 1.6 V
−67 −62 −58 dBc
Third Harmonic f
IN
= 5 MHz at
−10 dBFS,
GAIN+ = 0 V
−56 −50 −47 dBc
f
IN
= 5 MHz at
−1 dBFS,
GAIN+ = 1.6 V
−61 −56 −55 dBc
Two-Tone IMD3
(2 × F1 − F2)
Distortion
f
IN1
= 5.0 MHz at
−1 dBFS,
f
IN2
= 5.01 MHz
at −21 dBFS,
GAIN+ = 1.6 V,
LNA gain =
21.3 dB
−75 −75 −75 dBc
Channel-to-Channel
Crosstalk
f
IN1
= 5.0 MHz at
−1 dBFS
−70 −70 −70 dB
Overrange
condition
4
−65 −65 −65 dB
Channel-to-Channel
Delay Variation
Full TGC path,
f
IN
= 5 MHz,
GAIN+ = 0 V to
1.6 V
0.3 0.3 0.3 Degrees
PGA GAIN Differential
input to
differential
output 21/24/27/30 21/24/27/30 21/24/27/30 dB