AT86RF211SAH-R Atmel, AT86RF211SAH-R Datasheet - Page 26

• 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: -

2.2.14
26
AT86RF211S
Hardware Control
An Automatic Level Control (ACL) loop is integrated to minimize the PA’s sensitivity to
temperature, process and power supply variations. For instance, at 85°C, the output
power is approximately 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 generated current as shown in Figure 2-22.
Figure 2-22. ALC of the Power Amplifier
Figure 2-23. Typical Output Power of the PA for T = 25°C and V
R
the current it sinks. The PA performs well if R
level) to 33 kΩ (lowest power level).
POWER
sets the maximum power delivered by the internal Power Amplifier by limiting
14
12
10
-2
8
6
4
2
0
25
1.25 V
(v)
30
U
I
R
≅
POWER
18 k
i
ref
Ω
35
=
R
Isupply (mA)
POWER
V
Power Control
POWER
Digital
3 bits
40
ranges from 10 KΩ (highest power
DAC
45
I
To ALC
CC
OUT
433 MHz
= 3V
868 MHz
915 MHz
5348B–WIRE–03/06
50