AD9544SLASHPCBZ datasheet(12/62 Pages) AD

12 / 62 page

AD9544

Data Sheet

Rev. 0 | Page 12 of 62

SYSTEM CLOCK COMPENSATION SPECIFICATIONS

Table 15.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

DIRECT COMPENSATION

Resolution

0.028

ppt

ppt is parts per trillion (10−12)

CLOSED-LOOP COMPENSATION (AUXILIARY DPLL)

Phase Detector Frequency

200

kHz

Loop Bandwidth

0.1

2 × 103

Reference Monitor Threshold

TEMPERATURE SENSOR SPECIFICATIONS

Table 16.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TEMPERATURE

Accuracy

TA = −50°C to +110°C

Absolute

°C

Relative

1.7

Resolution

0.0078

°C

16-bit (signed) resolution

Conversion Time

0.18

REPEATABILITY

±0.02

°C

TA = 25°C

DRIFT

0.1

°C

500 hour stress test at 100°C

SERIAL PORT SPECIFICATIONS

Serial Port Interface (SPI) Mode

Table 17.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CSB

Valid for VDDIOA = 3.3 V, 1.8 V, and 2.5 V

Input Logic 1 Voltage

VDDIOA − 0.4

Input Logic 0 Voltage

0.4

Input Logic 1 Current

µA

Input Logic 0 Current

µA

SCLK

Input Logic 1 Voltage

VDDIOA − 0.4

Input Logic 0 Voltage

0.4

Input Logic 1 Current

µA

Input Logic 0 Current

µA

SDIO

As an Input

Input Logic 1 Voltage

VDDIOA − 0.4

Input Logic 0 Voltage

0.4

Input Logic 1 Current

µA

Input Logic 0 Current

µA

As an Output

Output Logic 1 Voltage

VDDIOA − 0.2

1 mA load current

Output Logic 0 Voltage

0.2

1 mA load current

SDO

Output Logic 1 Voltage

VDDIOA − 0.2

1 mA load current

Output Logic 0 Voltage

0.2

1 mA load current

Leakage Current

±1

µA

SDO inactive (high impedance)

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