Datasheet

AD6645
Rev. D | Page 5 of 24
Test
AD6645ASQ-80/
AD6645ASV-80
AD6645ASQ-105/
AD6645ASV-105
Parameter Temp Level Min Typ Max Min Typ Max Unit Conditions
WORST HARMONIC (FOURTH OR HIGHER)
Analog Input @ −1 dBFS 25°C V 96.0 96.0 dBc At 15.5 MHz
Full II 85.0 95.0 dBc At 30.5 MHz
25°C I 86.0 95.0 dBc At 37.7 MHz
Full V 90.0 90.0 dBc At 70.0 MHz
25°C V 90.0 90.0 dBc At 150.0 MHz
25°C V 88.0 88.0 dBc At 200.0 MHz
TWO-TONE SFDR 25°C V 100 98.0 dBFS At 30.5 MHz
1, 2
25°C V 100 98.0 dBFS At 55.0 MHz
1, 3
25°C V 98.0 dBFS At 70.0 MHz
1, 4
TWO-TONE IMD REJECTION
2, 3
F1, F2 @ −7 dBFS 25°C V 90 90 dBc
ANALOG INPUT BANDWIDTH 25°C V 270 270 MHz
1
Analog input signal power swept from −10 dBFS to −100 dBFS.
2
F1 = 30.5 MHz, F2 = 31.5 MHz.
3
F1 = 55.25 MHz, F2 = 56.25 MHz.
4
F1 = 69.1 MHz, F2 = 71.1 MHz.
SWITCHING SPECIFICATIONS
AV
CC
= 5 V, DV
CC
= 3.3 V; ENCODE,
ENCODE
, T
MIN
and T
MAX
at rated speed grade, unless otherwise noted.
Table 4.
Test
AD6645ASQ-80/
AD6645ASV-80
AD6645ASQ-105/
AD6645ASV-105
Parameter Symbol Temp Level Min Typ Max Min Typ Max Unit
ENCODE INPUT PARAMETERS
1
Maximum Conversion Rate Full II 80 105 MSPS
Minimum Conversion Rate Full IV 30 30 MSPS
ENCODE Pulse Width High, t
ENCH
2
Full IV 5.625 4.286 ns
Full V 6.25 4.75 ns
ENCODE Pulse Width Low, t
ENCL
2
Full IV 5.625 4.286 ns
Full V 6.25 4.75 ns
ENCODE Period
1
t
ENC
Full V 12.5 9.5 ns
ENCODE/DATA-READY
ENCODE Rising to Data-Ready Falling t
DR
Full V 1.0 2.0 3.1 1.0 2.0 3.1 ns
ENCODE Rising to Data-Ready Rising t
E_DR
Full V t
ENCH
+ t
DR
t
ENCH
+ t
DR
ns
50% Duty Cycle Full V 7.3 8.3 9.4 5.7 6.75 7.9 ns
ENCODE/DATA (D13:0), OVR
ENCODE to DATA Falling Low t
E_FL
Full V 2.4 4.7 7.0 2.4 4.7 7.0 ns
ENCODE to DATA Rising Low
3
t
E_RL
Full V 1.4 3.0 4.7 1.4 3.0 4.7 ns
ENCODE to DATA Delay
3
(Hold Time) t
H_E
Full V 1.4 3.0 4.7 1.4 3.0 4.7 ns
ENCODE to DATA Delay (Setup Time) t
S_E
Full V
t
ENC
−
t
E_FL(max)
t
ENC
−
t
E_FL(max)
ns
t
ENC
−
t
E_FL(typ)
t
ENC
−
t
E_FL(typ)
ns
t
ENC
−
t
E_FL(min)
t
ENC
−
t
E_FL(min)
ns
50% Duty Cycle Full V 5.3 7.6 10.0 2.3 4.8 7.0 ns