AD9549
SPECIFICATIONS
DC SPECIFICATIONS
AVDD = 1.8 V 5%, AVDD3 = 3.3 V 5%, DVDD = 1.8 V 5%, DVDD_I/O = 3.3 V 5%. AVSS = 0 V, DVS S = 0 V, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SUPPLY VOLTAGE
DVDD_I/O (Pin 1)
3.135
1.71
3.135
1.71
3.30
1.80
3.30
3.30
1.80
3.465
1.89
3.465
3.465
1.89
V
V
V
V
V
DVDD (Pin 3, Pin 5, Pin 7)
AVDD3 (Pin 14, Pin 46, Pin 47, Pin 49)
AVDD3 (Pin 37)
AVDD (Pin 11, Pin 19, Pin 23 to Pin 26, Pin 29,
Pin 30, Pin 36, Pin 42, Pin 44, Pin 45, Pin 53)
Pin 37 is typically 3.3 V, but can be set to 1.8 V
1.71
SUPPLY CURRENT
IAVDD3 (Pin 14)
IAVDD3 (Pin 37)
IAVDD3 (Pin 46, Pin 47, Pin 49)
IAVDD (Pin 36, Pin 42)
4.7
3.8
26
5.6
4.5
29
mA
mA
mA
mA
REFA, REFB buffers
CMOS output clock driver at 3.3 V
DAC output current source, fS = 1 GSPS
FDBK_IN input, HSTL output clock driver
(output doubler turned on)
21
26
IAVDD (Pin 11)
IAVDD (Pin 19, Pin 23 to Pin 26, Pin 29,
Pin 30, Pin 44, Pin 45)
12
215
15
281
mA
mA
REFA and REFB input buffer 1.8 V supply
Aggregate analog supply, including system
clock PLL
IAVDD (Pin 53)
IDVDD (Pin 3, Pin 5, Pin 7)
IDVDD_I/O (Pin 1)
41
254
4
49
265
6
mA
mA
mA
DAC power supply
Digital core
Digital I/O (varies dynamically)
Pin 9, Pin 10, Pin 54 to Pin 61, Pin 63, Pin 64
LOGIC INPUTS (Except Pin 32)
Input High Voltage (VIH)
Input Low Voltage (VIL)
2.0
DVSS
DVDD_I/O
0.8
V
V
Input Current (IINH, IINL
)
60
3
200
µA
pF
At VIN = 0 V and VIN = DVDD_I/O
Pin 32 only
Maximum Input Capacitance (CIN)
CLKMODESEL (Pin 32) LOGIC INPUT
Input High Voltage (VIH)
1.4
AVSS
AVDD
0.4
V
V
Input Low Voltage (VIL)
Input Current (IINH, IINL
Maximum Input Capacitance (CIN)
LOGIC OUTPUTS
)
−18
3
−50
µA
pF
At VIN = 0 V and VIN = AVDD
Pin 62 and the following bidirectional pins:
Pin 9, Pin 10, Pin 54, Pin 55, Pin 63
Output High Voltage (VOH
Output Low Voltage (VOL)
REFERENCE INPUTS
)
2.7
DVSS
DVDD_I/O
0.4
V
V
IOH = 1 mA
IOL = 1 mA
Pin 12, Pin 13, Pin 15, Pin 16
Input Capacitance
3
pF
Input Resistance
8.5
11.5
14.5
kΩ
Differential at Register 0x040F[1:0] = 00
Differential Operation
Common Mode Input Voltage1
(Applicable When DC-Coupled)
1.5
AVDD3 −
0.2
V
Differential operation; note that LVDS signals
must be ac-coupled
Differential Input Voltage Swing1
Single-Ended Operation
Input Voltage High (VIH)
Input Voltage Low (VIL)
Threshold Voltage
500
mV p-p
Differential operation
Register 0x040F[1:0] = 10
2.0
AVSS
AVDD3
0.8
V
V
V
AVDD3 − AVDD3 − AVDD3 −
0.66
Register 0x040F[1:0] = 10 (other settings
possible)
0.82
0.98
Input Current
FDBK_IN INPUT
1
mA
Single-ended operation
Pin 40, Pin 41
Input Capacitance
3
pF
Input Resistance
Differential Input Voltage Swing2
18
225
22
26
kΩ
mV p-p
Differential
−12 dBm into 50 Ω; must be ac-coupled
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