SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 22

• Manufacturer Part Number: SI4205-BM
• Description: IC TXRX TRI-BAND 32LGA
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4205-BM

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Modulation Or Protocol: GSM
• Applications: Cellular, GSM Cellular Radio
• Voltage - Supply: 2.7 V ~ 3.3 V
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Package / Case: 32-LGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Operating Temperature: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Aero I
Register 01h. Reset
Register 02h. Mode Control
Note: Calibration must be performed each time the power supply is applied. To initiate the calibration mode, set
22
Name
Name
Bit
Bit
17:1
17:3
1:0
Bit
Bit
0
2
MODE[1:0] = 10 and pulse the PDN pin high for at least 150 µs.
D17 D16 D15 D14 D13 D12 D11 D10 D9
D17 D16 D15 D14 D13 D12 D11 D10
0
0
0
0
MODE[1:0]
Reserved
Reserved
0
0
RESET
Name
Name
AUTO
0
0
0
0
0
0
Program to zero.
Chip Reset.
0 = Normal operation (default).
1 = Reset all registers to default values.
Note: See “Control Registers” on page 21 for more details. This register must be
Program to zero.
Automatic Mode Select.
0 = Manual. Mode is controlled by MODE[1:0] bits (default).
1 = Automatic. Last register write to N
Transmit/Receive/Cal Mode Select.
00 = Receive mode (default).
01 = Transmit mode.
10 = Calibration mode.
11 = Reserved.
Note: These bits are valid only when AUTO = 0.
write to N
0
0
written to 0 twice after a reset operation. This bit does not reset registers
31h to 35h.
0
0
Rev. 1.0
RF2
D9
0
0
implies TX mode. MODE[1:0] bits are ignored.
D8
D8
0
0
D7
D7
0
0
Function
Function
D6
D6
0
0
RF1
D5
D5
0
0
implies RX mode; Last register
D4
D4
0
0
D3
D3
0
0
D2
AUTO
D2
0
D1
D1
0
MODE[1:0]
RESET
D0
D0