Rainbow Electronics T5761 - Manual (Page 30)

30
T5760/T5761
4561B–RKE–10/02
Configuration of the Receiver (see Figure 17 and Figure 33)
Frequency of
the reset
marker
Frequency is
stable within
50 ms after POR
f
RM
118.2 118.2 124.5 124.5
1/
(4096 ´ T
Clk
)
1/
(4096 ´ T
Clk
)
Hz
Programming
start pulse
BR_Range =
BR_Range0
BR_Range1
BR_Range2
BR_Range3
after POR
t1
3355
2273
1731
1461
16397
11637
11637
11637
11637
3184
2168
1643
1386
15560
11043
11043
11043
11043
1624 ´ T
Clk
1100 ´ T
Clk
838 ´ T
Clk
707 ´ T
Clk
7936 ´ T
Clk
5632 ´ T
Clk
5632 ´ T
Clk
5632 ´ T
Clk
5632 ´ T
Clk
µs
µs
µs
µs
µs
Programming
delay period
t2 795 797 754 756 384.5 ´ T
Clk
385.5 ´ T
Clk
µs
Synchroni-
zation pulse
t3 264 264 251 251 128 ´ T
Clk
128 ´ T
Clk
µs
Delay until of
the program
window starts
t4 131 131 125 125 63.5 ´ T
Clk
63.5 ´ T
Clk
µs
Programming
window
t5 529 529 502 502 256 ´ T
Clk
256 ´ T
Clk
µs
Time frame
of a bit
t6 1058 1058 1004 1004 512 ´ T
Clk
512 ´ T
Clk
µs
Programming
pulse
t7 132 529 125 502 64 ´ T
Clk
256 ´ T
Clk
µs
Equivalent
acknowledge
pulse: E_Ack
t8 264 264 251 251 128 ´ T
Clk
128 ´ T
Clk
µs
Equivalent
time window
t9 533 533 506 506 258 ´ T
Clk
258 ´ T
Clk
µs
OFF-bit
programming
window
t10 929 929 881 881 449.5 ´ T
Clk
449.5 ´ T
Clk
µs
Data Clock (see Figure 27 and Figure 28)
Minimum delay
time between
edge at DATA
and
DATA_CLK
BR_Range =
BR_Range0
BR_Range1
BR_Range2
BR_Range3
t
Delay2
0
0
0
0
16.5
8.3
4.1
2.1
0
0
0
0
16.7
7.8
3.9
1.96
0
0
0
0
1 ´ T
XClk
1 ´ T
XClk
1 ´ T
XClk
1 ´ T
XClk
µs
µs
µs
µs
Pulse width of
negative pulse
at Pin
DATA_CLK
BR_Range =
BR_Range0
BR_Range1
BR_Range2
BR_Range3
t
P_DATA_CLK
66.1
33.0
16.5
8.3
66.1
33.0
16.5
8.3
63
31
15.7
7.8
63
31
15.7
7.8
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
4 ´ T
XClk
µs
µs
µs
µs
Electrical Characteristics (Continued)
All parameters refer to GND, T
am b
= -40
°
C to +105
°
C, V
S
= 4.5 V to 5.5 V, f
0
= 868.3 MHz and f
0
= 915 MHz,
unless otherwise specified. (For typical values: V
S
= 5 V, T
amb
= 25
°
C)
Parameter Test Conditions Symbol
f
RF
= 868.3 MHz
6.77617 MHz Oscillator
f
RF
= 915 MHz
7.14063 MHz Oscillator Variable Oscillator
Unit Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.