AD6645
AD6645ASQ-80/
AD6645ASV-80
AD6645ASQ-105/
AD6645ASV-105
Test
Parameter
Temp
Level
Min
Typ
Max
Min
Typ
Max
Unit
Conditions
WORST HARMONIC (FOURTH OR HIGHER)
Analog Input @ −1 dBFS
2ꢀ°C
Full
2ꢀ°C
Full
2ꢀ°C
2ꢀ°C
2ꢀ°C
2ꢀ°C
2ꢀ°C
V
II
I
V
V
V
V
V
V
96.0
8ꢀ.0 9ꢀ.0
96.0
dBc
dBc
dBc
dBc
dBc
dBc
At 1ꢀ.ꢀ MHz
At 30.ꢀ MHz
At 37.7 MHz
At 70.0 MHz
At 1ꢀ0.0 MHz
At 200.0 MHz
At 30.ꢀ MHz1, 2
At ꢀꢀ.0 MHz1, 3
At 70.0 MHz1, 4
86.0 9ꢀ.0
90.0
90.0
90.0
88.0
100
100
90.0
88.0
TWO-TONE SFDR
98.0
98.0
98.0
dBFS
dBFS
dBFS
TWO-TONE IMD REJECTION2, 3
F1, F2 @ −7 dBFS
2ꢀ°C
2ꢀ°C
V
V
90
90
dBc
ANALOG INPUT BANDWIDTH
270
270
MHz
1 Analog input signal power swept from −10 dBFS to −100 dBFS.
2 F1 = 30.ꢀ MHz, F2 = 31.ꢀ MHz.
3 F1 = ꢀꢀ.2ꢀ MHz, F2 = ꢀ6.2ꢀ MHz.
4 F1 = 69.1 MHz, F2 = 71.1 MHz.
SWITCHING SPECIFICATIONS
ENCODE
AVCC = 5 V, DVCC = 3.3 V; ENCODE,
, TMIN and TMAX at rated speed grade, unless otherwise noted.
Table 4.
AD6645ASQ-80/
AD6645ASV-80
AD6645ASQ-105/
AD6645ASV-105
Test
Symbol Temp Level Min
Parameter
Typ
Max
Min
Typ
Max
Unit
ENCODE INPUT PARAMETERS1
Maximum Conversion Rate
Minimum Conversion Rate
Full
Full
Full
Full
Full
Full
Full
II
80
10ꢀ
MSPS
MSPS
ns
ns
ns
IV
IV
V
IV
V
30
30
2
ENCODE Pulse Width High, tENCH
ꢀ.62ꢀ
ꢀ.62ꢀ
4.286
4.286
6.2ꢀ
4.7ꢀ
2
ENCODE Pulse Width Low, tENCL
6.2ꢀ
12.ꢀ
4.7ꢀ
9.ꢀ
ns
ns
ENCODE Period1
tENC
V
ENCODE/DATA-READY
ENCODE Rising to Data-Ready Falling
ENCODE Rising to Data-Ready Rising
ꢀ0% Duty Cycle
tDR
tE_DR
Full
Full
Full
V
V
V
1.0
7.3
2.0
tENCH + tDR
8.3
3.1
9.4
1.0
ꢀ.7
2.0
tENCH + tDR
6.7ꢀ
3.1
7.9
ns
ns
ns
ENCODE/DATA (D13:0), OVR
ENCODE to DATA Falling Low
ENCODE to DATA Rising Low3
ENCODE to DATA Delay3 (Hold Time)
ENCODE to DATA Delay (Setup Time)
tE_FL
tE_RL
tH_E
tS_E
Full
Full
Full
Full
V
V
V
V
2.4
1.4
1.4
4.7
3.0
3.0
7.0
4.7
4.7
2.4
1.4
1.4
4.7
3.0
3.0
7.0
4.7
4.7
ns
ns
ns
ns
tENC
−
tENC
−
tE_FL(max)
tE_FL(max)
tENC
tE_FL(typ)
−
tENC
tE_FL(typ)
−
ns
ns
ns
tENC
tE_FL(min)
10.0
−
tENC −
tE_FL(min)
7.0
ꢀ0% Duty Cycle
Full
V
ꢀ.3
7.6
2.3
4.8
Rev. D | Page ꢀ of 24
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