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Digital timing characteristics (continued) – Rainbow Electronics ATA5812 User Manual

Page 83

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83

ATA5811/ATA5812 [Preliminary]

4689B–RKE–04/04

13.5

Baud-rate range

BR_Range =

BR_Range0

BR_Range1

BR_Range2

BR_Range3

BR_Range

1.0
2.0
4.0
8.0

2.5
5.0

10.0
20.0

kBaud

A

13.6

Minimum time period
between edges at pin
SDO_TMDO in RX
transparent mode

XLIM = 0

BR_Range_0

BR_Range_1

BR_Range_2

BR_Range_3

XLIM = 1

BR_Range_0

BR_Range_1

BR_Range_2

BR_Range_3

31

T

DATA_min

10

×

T

XDCLK

µs

A

13.7

Edge-to-edge time
period of the data signal
for full sensitivity in RX
mode

BR_Range_0

BR_Range_1

BR_Range_2

BR_Range_3

T

DATA

200
100

50
25

500
250
125

62.5

µs

B

14

TX Mode

14.1

Start-up time

From Idle mode

T

Startup

331.5

×

T

DCLK

331.5

×

T

DCLK

µs

A

15

Configuration of the Transceiver with 4-wire Serial Interface

15.1

CS set-up time to rising
edge of SCK

33, 35

T

CS_setup

1.5

×

T

DCLK

µs

A

15.2

SCK cycle time

33

T

Cycle

2

µs

A

15.3

SDI_TMDI set-up time
to rising edge of SCK

32, 33

T

Setup

250

ns

C

15.4

SDI_TMDI hold time
from rising edge of SCK

32, 33

T

Hold

250

ns

C

15.5

SDO_TMDO enable
time from rising edge of
CS

31, 35

T

Out_enable

250

ns

C

15.6

SDO_TMDO output
delay from falling edge
of SCK

C

L

= 10 pF

31, 35

T

Out_delay

250

ns

C

15.7

SDO_TMDO disable
time from falling edge of
CS

31, 33

T

Out_disable

250

ns

C

15.8

CS disable time period

35

T

CS_disable

1.5

×

T

DCLK

µs

A

Digital Timing Characteristics (Continued)

All parameters refer to GND and are valid for T

amb

= -40°C to +105°C. V

VS1

= V

S2

= 2.4 V to 3.6 V (1-battery application),

V

V S 2

= 4.4 V to 6.6 V (2-batter y application) and V

V S 2

= 4.75 V to 5.25 V (car application), typical values at

V

VS1

= V

VS2

= 3 V and T

amb

= 25°C unless otherwise specified.

No.

Parameters

Test Conditions

Pin

Symbol

Min.

Typ.

Max.

Unit

Type*

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter