AT86RF211SAH-R Atmel, AT86RF211SAH-R Datasheet - Page 20

• Manufacturer Part Number: AT86RF211SAH-R
• Description: IC RF TXRX FSK 400-950MHZ 48TQFP
• Manufacturer: Atmel

Specifications of AT86RF211SAH-R

• Frequency: 400MHz ~ 950MHz
• Data Rate - Maximum: 100kbps
• Modulation Or Protocol: FSK
• Applications: ISM
• Power - Output: 7dBm ~ 12dBm
• Sensitivity: -107dBm
• Voltage - Supply: 2.4 V ~ 3.6 V
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP Exposed Pad, 48-eTQFP, 48-HTQFP, 48-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Transmitting: -
• Current - Receiving: -

Table 2-3.
2.2.11
20
Mode
RF211S only
RF211S only
RF211S only
RF211 or RF211S
AT86RF211S
FSK Demodulator
RSSI Clocking Options
Bits
RSSICLK
11
10
01
00
The RSSI’s dynamic range is 50 dB from a -95 dBm to -45 dBm RF input signal power,
over temperature and power supply ranges. The value of the RSSI’s LSB weighs
approximately 1.3 dB in the linear area. The RSSI value is measured from the IF2 chain.
As the successive approximation ADC is shared by the RSSI, V
nator offset measurements, some bits of the CTRL1 register must be selected for a
correct measurement, as illustrated in Figure 2-15:
Figure 2-15. ADC Converter Input Selection
Note:
The clocking period on the AT86RF211S is as short as 1.5 µs. This gives a data readout
at least every 100 µs. The clock speed can, however, be reduced (for compatibility rea-
sons for instance).
Note:
Refer to “Control Logic” on page 34 for additional programming details.
The structure of the FSK demodulator is based on an oscillator.
Vcc Supply
DISCOUT
(MOFFSET)
Clock Frequency
640 kHz
320 kHz
160 kHz
80 kHz
For voltage measurement, the LSB weighs 85 mV and the reference voltage is 1.25V.
In Reception mode, please remember that both RSSI and V
same ADC.
1. From 0 to 63.
CTRL1[1]
M
U
X
Voltage
RSSI
800 µs
Worst Case
Settling Time
100 µs
200 µs
400 µs
M
U
X
CTRL1[24]
(1)
ADC
Comment
Recommended
Compatible with AT86RF211
This is the only clock speed available with
the AT86RF211
M
U
X
CC
CC
measurements use the
STATUS Register
voltage and discrimi-
MRSSI
MVCC
5348B–WIRE–03/06