AT86RF211SAHWR E2V, AT86RF211SAHWR Datasheet - Page 39

• Manufacturer Part Number: AT86RF211SAHWR
• Manufacturer: E2V

Specifications of AT86RF211SAHWR

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Modulation Type: FSK
• Product Depth (mm): 7mm
• Product Length (mm): 7mm
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / Rohs Status: Compliant

Table 4-17.
Notes:
e2v semiconductors SAS 2008
Name
–
RXFS
XTALFQ
FSKBW
FSKPOL
DSREF
–
–
MOFFSET
ADDFEAT
1. The same ADC is used to measure the RSSI or V
2. The V
3. While V
4. Description of RSSI measurement with hysteresis mechanism: if the RSSI measurement is higher than the high RSSI level,
stopped (the previously-measured RSSI is kept in the STATUS register). This can disturb the reception process (if a thresh-
old is used for DATAMSG validation).Therefore, it is not recommended to measure V
DATAMSG is validated (high RSSI level = TRSSI + HRSSI). If the RSSI measure is lower than the low RSSI level, DATAMSG
is inhibited (low RSSI level = TRSSI - HRSSI). Between these two levels, DATAMSG validation depends on the previous
measurement.
Example:
TRSSI = 32 and HRSSI = 4 implies high RSSI level = 36 and Low RSSI level = 28
CTRL1 Detailed Description
Number of Bits
1
2
1
1
1
1
1
1
1
1
CC
CC
measurement cannot be done when the AT86RF211S is in power-down mode.
is being measured, it is possible to measure the DC output of the discriminator.
Comments
reserved, must be kept to reset value: 0
RX frequency selection
(00)
(01)
Reset value: (10)
Crystal frequency
0: 10.245 MHz (when IF1 = 10.7 MHz)
1: 20.945 MHz (when IF1 = 21.4 MHz); option not available
Reset value: 0
Discriminator range, inactive in AT86RF211S mode: report to DISCRANGE bits of DTR register
0: Narrow Discriminator BW
1: Standard Discriminator BW
Reset value: 1
Polarity of DATAMSG
0: inverted signal
1: direct signal
Reset value: 1
Data slicer reference voltage
0: external reference: SKFILT pin voltage
1: internal reference: DAC level voltage
Reset value: 1
reserved, must be kept to reset value 0
reserved, must be kept to reset value: 0
0: internal ADC sets to V
1: internal ADC sets to DISCOUT DC level measurement
Reset value: 0
0: no additional feature, RF211 mode
1: additional digital features selected, RF211S mode, in which the DTR length is extended to 32
bits, giving access to new additional features
Reset value: 0
2
2
: F0
: F1
(1)(2)(3)(4)
2
(Continued)
CC
CC
(10)
(11)
voltage. When the V
measurement
2
2
: F2
: F3
CC
voltage is measured, the RSSI measurement is
CC
in reception mode.
0894C–WIRE–11/08
AT86RF211S
39