AT86RF211DAI-R Atmel, AT86RF211DAI-R Datasheet - Page 21

• Manufacturer Part Number: AT86RF211DAI-R
• Description: IC TXRX FR FSK 400-950MHZ 48-TQF
• Manufacturer: Atmel

Specifications of AT86RF211DAI-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: -

Figure 27. Typical Output Power of the PA for T = 25°C and V
Hardware Control
1942C–WIRE–06/02
14
12
10
-2
8
6
4
2
0
26
An automatic level control loop (ALC) is integrated, in order to minimize the sensitivity of
the PA to the temperature, process and power supply variations. For instance, at +85°C,
the output power is about 2 dB less than at 25°C. At -40°C, the output power is higher
than at 25°C. The ALC is controlled by a current which is generated in the following way:
Figure 26. ALC of the Power Amplifier
The max output power is determined by R
obtained with R
18 k
Decreasing this value to 10 k
+10 dBm at 915 MHz (typical values for conducted output power).
31
is the nominal value for a +10 dBm output in the 868 MHz frequency band.
36
POWER
1.25 V
Output Power
(v)
= 10 k .
41
Isupply (mA)
U
CC
= 3V
will lead to +14 dBm at 433 MHz, +12 dBm at 868 MHz,
I
R
46
POWER
18 k
i
ref
=
R
POWER
V
51
POWER
power control
433MHz
digital
3 bits
and the maximum output power is
868MHz
56
DAC
915MHz
61
AT86RF211
I
To ALC
OUT
21