Digital timing characteristics – Rainbow Electronics ATA5812 User Manual
Page 82
82
ATA5811/ATA5812 [Preliminary]
4689B–RKE–04/04
Digital Timing Characteristics
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*
12
Basic Clock Cycle of the Digital Circuitry
12.1
Basic clock cycle
T
DCLK
16/f
XTO
16/f
XTO
µs
A
12.2
Extended basic clock
cycle
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
T
XDCLK
8
4
2
1
×
T
DCLK
16
8
4
2
×
T
DCLK
8
4
2
1
×
T
DCLK
16
8
4
2
×
T
DCLK
µs
A
13
RX Mode/RX Polling Mode
13.1
Sleep time
Sleep and XSleep are
defined in control
register 4
T
Sleep
Sleep
×
X
Sleep
Ч
1024
Ч
T
DCLK
Sleep
×
X
Sleep
Ч
1024
Ч
T
DCLK
ms
A
13.2
Start-up PLL RX mode
from Idle mode
T
Startup_PLL
798.5
×
T
DCLK
798.5
×
T
DCLK
µs
A
13.3
Start-up signal
processing
BR_Range_0
BR_Range_1
BR_Range_2
BR_Range_3
T
Startup_Sig_Proc
882
498
306
210
×
T
DCLK
882
498
306
210
×
T
DCLK
A
13.4
Time for Bit-check
Average time during
polling. No RF signal
applied.
f
Signal
= 1/(2
×
t
ee
)
Signal data rate
Manchester
(Lim_min and Lim_max
up to ±50% of t
ee
,
see
Bit-check time for a
valid input signal f
Sig
N
Bit-check
= 0
N
Bit-check
= 3
N
Bit-check
= 6
N
Bit-check
= 9
T
Bit_check
3/f
Sig
6/f
Sig
9/f
Sig
1/f
Signal
3.5/f
Sig
6.5/f
Sig
9.5/f
Sig
ms
C
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter