ATA5811_06 ATMEL [ATMEL Corporation], ATA5811_06 Datasheet - Page 31

• Manufacturer Part Number: ATA5811_06
• Description: UHF ASK/FSK TRANSCEIVER
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 7-3.
4689F–RKE–08/06
V
V
Thres_2
Thres_1
(Control Register 3)
DVCC_RESET
(Status Register)
Reset Timing
= 2.38V (typ)
VSOUT_EN
= 2.3V (typ)
N_RESET
LOW_Batt
VSOUT
(AVCC)
DVCC
CLK
The status bit Low_Batt is set to 1 if the voltage at pin VSOUT V
ically 2.38V). Low_Batt is set to 0 if V
the 4-wire serial interface or N_RESET is set to low.
If V
trol register 3 is 1, a DVCC_RESET is also generated. If V
connected microcontroller by setting bit VSOUT_EN = 0, no DVCC_RESET is generated.
Note:
VSOUT
If VSOUT < V
is disabled and the transceiver is not programmable via the 4-wire serial interface.
drops below V
1.5V (typically)
V
SOUT
V
SOUT
> 2.3V and the XTO is running
Thres_1
> 2.38V and the XTO is running
Thres_1
(typically 2.3V) the output of the pin CLK is low, the Microcontroller_Interface
(typically 2.3V), N_RESET is set to low. If bit VSOUT_EN in con-
VSOUT
exceeds V
Thres_2
ATA5811/ATA5812
and the status register is read via
VSOUT
VSOUT
was prior disabled by the
drops below V
Thres_2
(typ-
31