CS5461A

10

DS661F2

SWITCHING CHARACTERISTICS

•

Min / Max characteristics and specifications are guaranteed over all Recommended Operating Conditions.

•

Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.

•

VA+ = 5 V ±5% VD+ = 3.3 V ±5% or 5 V ±5%; AGND = DGND = 0 V. All voltages with respect to 0 V.

•

Logic Levels: Logic 0 = 0 V, Logic 1 = VD+.

17.

Oscillator start-up time varies with crystal parameters. This specification does not apply when using an external

clock source.

Parameter

Symbol

Min

Typ

Max

Unit

Rise Times

Any Digital Input Except SCLK

(Note 16)

SCLK

Any Digital Output

-

-

-

-

-

50

1.0

100

-

µs

µs

ns

Fall Times

Any Digital Input Except SCLK

(Note 16)

SCLK

Any Digital Output

-

-

-

-

-

50

1.0

100

-

µs

µs

ns

Start-up

Oscillator Start-Up Time

XTAL = 4.096 MHz (Note 17)

-60-

ms

Serial Port Timing

Serial Clock Frequency

SCLK

-

-

2

MHz

Serial Clock

Pulse Width High

Pulse Width Low

200

200

-

-

-

-

ns

ns

SDI Timing

CS Falling to SCLK Rising

50

-

-

ns

Data Set-up Time Prior to SCLK Rising

50

-

-

ns

Data Hold Time After SCLK Rising

100

-

-

ns

SDO Timing

CS Falling to SDO Driving

-20

50

ns

SCLK Falling to New Data Bit (hold time)

-20

50

ns

CS Rising to SDO Hi-Z

-20

50

ns

Auto-Boot Timing

Serial Clock

Pulse Width Low

Pulse Width High

8

8

MCLK

MCLK

MODE setup time to RESET Rising

50

ns

RESET rising to CS falling

48

MCLK

CS falling to SCLK rising

100

8

MCLK

SCLK falling to CS rising

16

MCLK

CS rising to driving MODE low (to end auto-boot sequence).

50

ns

SDO guaranteed setup time to SCLK rising

100

ns