AD9549 datasheet(5/78 Pages) AD

5 / 78 page

Preliminary Technical Data

AD9549

Rev. PrA | Page 5 of 78

DC SPECIFICATIONS

Unless otherwise noted, AVDD=1.8±5%, AVDD3=3.3±5%, DVDD=1.8±5%, DVDD_I/O=3.3±5%.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

SUPPLY VOLTAGE

DVDD_I/O (pin 1)

3.135

3.30

3.465

(with respect to DVSS)

DVDD (pin 3, 5, 7)

1.71

1.80

1.89

(with respect to DVSS)

AVDD3 (pin 14, 46, 47, 49)

3.135

3.30

3.465

(with respect to AVSS)

AVDD3 (pin 37)

1.71

3.30

3.465

(with respect to AVSS)

AVDD (pin 11,19, 23-26,29,30,36,42,44,45,53)

1.71

1.80

1.89

(with respect to AVSS)

SUPPLY CURRENT

I-AVDD3 (pin 14)

TBD

REFA, REFB Buffers

I-AVDD3 (pin 37)

TBD

CMOS Output Clock Driver at 3.3V

I-AVDD3 (pin 46, 47, 49)

TBD

DAC output current source

I-AVDD (pin 36)

TBD

HSTL Output Clock Driver

I-AVDD (pin 42)

TBD

FDBK

I-AVDD (pin 11)

TBD

SYSCLK

I-AVDD (pin 19, 23-26, 29, 30, 44, 45)

170

TBD

aggregate analog supply

I-AVDD (pin 53)

TBD

DAC Power Supply

I-DVDD (pin 3, 5, 7)

200

TBD

Digital Core

I-DVDD_I/O (pin 1)

TBD

Digital I/O (varies dynamically)

LOGIC INPUTS (Except Pin 32)

Pins 56-61, 64, 9, 10, 54, 55, 63

Input High Voltage (VIH)

2.0

Input Low Voltage (VIL)

0.8

Input Current (IINH, IINL)

±30

±100

µA

At Vin=0V and Vin=DVDD_I/O

Maximum Input Capacitance (CIN)

CLKMODESEL (Pin 32) LOGIC INPUT

Pin 32 only.

Input High Voltage (VIH)

1.4

Input Low Voltage (VIL)

0.4

Input Current (IINH, IINL)

±30

±100

µA

At Vin=0V and Vin=DVDD_I/O

Maximum Input Capacitance (CIN)

LOGIC OUTPUTS

Pin 62, & bi-dir. pins 9, 10, 54, 55, 63

Output High Voltage (VOH)

2.7

IOH = 1 mA w/ VOH =DVDD_I/O-0.4V

Output Low Voltage (VOL)

0.4

IOL = 1mA w/ VOL =0.4V

REFERENCE INPUTS

Pins 12, 13, 15, 16

Input Capacitance

Input Resistance

KΩ

Differential at Vbias=AVDD3-800mV

Common Mode Input Voltage1

differential operation

Differential Input Voltage Swing1

differential operation

Input Voltage High (VIH)

single-ended operation

Input Voltage Low (VIL)

single-ended operation

Input Current

single-ended operation

Internal Bias Voltage

AVDD3-

1600

AVDD3-

800

AVDD3-

400

programmable (see text)

FDBK INPUT

Pins 40, 41

Input Capacitance

Input Resistance

KΩ

Differential

Common Mode Input Voltage2

differential operation

Differential Input Voltage Swing2

differential operation

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