AD9559PCBZ datasheet(12/120 Pages) AD

12 / 120 page

AD9559

Data Sheet

Rev. 0 | Page 12 of 120

SERIAL PORT SPECIFICATIONS—I2C MODE

Table 15.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

SDA, SCL (AS INPUTS)

Input Logic 1 Voltage

0.7 × VDD3

Input Logic 0 Voltage

0.3 × VDD3

Input Current

−10

+10

µA

For VIN = 10% to 90% of VDD3

Hysteresis of Schmitt Trigger Inputs

0.015 × VDD3

Pulse Width of Spikes That Must Be Suppressed

by the Input Filter, tSP

SDA (AS OUTPUT)

Output Logic 0 Voltage

0.4

IO = 3 mA

Output Fall Time from VIHmin to VILmax

20 + 0.1 Cb

250

10 pF ≤ Cb ≤ 400 pF

TIMING

SCL Clock Rate

400

kHz

Bus-Free Time Between a Stop and Start

Condition, tBUF

1.3

µs

Repeated Start Condition Setup Time, tSU;STA

0.6

µs

Repeated Hold Time Start Condition, tHD;STA

0.6

µs

After this period, the first clock pulse is

generated

Stop Condition Setup Time, tSU; STO

0.6

µs

Low Period of the SCL Clock, tLOW

1.3

µs

High Period of the SCL Clock, tHIGH

0.6

µs

SCL/SDA Rise Time, tR

20 + 0.1 Cb1

300

SCL/SDA Fall Time, tF

20 + 0.1 Cb1

300

Data Setup Time, tSU; DAT

100

Data Hold Time, tHD; DAT

100

Capacitive Load for Each Bus Line, Cb1

400

Cb is the capacitance (pF) of a single bus line.

LOGIC INPUTS (RESET, M5 TO M0)

Table 16.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

RESETE

PINA

Input High Voltage (VIH)

2.1

Input Low Voltage (VIL)

0.8

Input Current (IINH, IINL)

±85

±125

µA

Input Capacitance (CIN)

LOGIC INPUTS (M5 to M0)

The M4 and M5 pins are dual function pins; the

values in this table apply when M4/SDO and

M5/

CSE

are used as M pins; see Table 14 in the

Serial Port Specifications—SPI Mode section

for the specifications when these pins are used

as serial port pins (SDO,

CSE

)

Input High Voltage (VIH)

2.5

Input Low Voltage (VIL)

0.6

Input Current (IINH, IINL)

±1

±5

µA

Input Capacitance (CIN)

LOGIC OUTPUTS (M5 TO M0)

Table 17.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

LOGIC OUTPUTS (M5 to M0)

Output High Voltage (VOH)

VDD3 − 0.4

IOH = 1 mA

Output Low Voltage (VOL)

0.4

IOL = 1 mA

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