Rainbow Electronics ATA5812 - Manual (Page 31)

31
ATA5811/ATA5812 [Preliminary]
4689B–RKE–04/04
Figure 24. Reset Logic, SR Latch Generates the Hysteresis in the NRESET Signal
1-Battery Application The supply voltage range is 2.4 V to 3.6 V and VAUX is not used.
Figure 25. 1-Battery Application
≥
1
and
DVCC_OK
XTO_OK
VSOUT_OK
LOW_BATT
S
R
Q
Q
NRESET
VSOUT_EN
DVCC_RESET
S R Q
0
0
1
1
0
1
0
1
1
0
no change
no change
and
and
VS1
VS2
VAUX
VSOUT
VSINT
Microcontroller ATA5811/ATA5812
VS
2.4 V to 3.6 V
AVCC
DVCC
CS
SCK
SDI_TMDI
SDO_TMDO
IRQ
CLK
NRESET
OUT
OUT
OUT
IN
IN
IN
IN
Micr
o
c
o
n
tr
o
lle
r_
In
te
rf
a
c
e
DEM_OUT
RF - Transceiver
Digital Control
Logic