SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 23

• 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

Register 03h. Configuration
Name
Bit
17:14
13:12
10:8
7:6
5:4
3:2
Bit
11
1
0
D17 D16 D15 D14 D13 D12 D11 D10
0
0
RXBAND[1:0]
TXBAND[1:0]
DIAG[1:0]
Reserved
Reserved
Reserved
Reserved
Reserved
0
SWAP
Name
0
DIAG[1:0]
Program to zero.
DIAG1/DIAG2 Output Select.
00 =
01 =
10 =
11 =
Note: These pins can be used to control antenna switch functions. These bits
Transmit I/Q Swap.
0 = Normal (default).
1 = Swap I and Q for TXIP, TXIN, TXQP and TXQN pins.
Program to zero.
Transmit Band Select.
00 = GSM 850 or E-GSM 900 (default).
01 = DCS 1800.
10 = PCS 1900.
11 = Reserved.
Receive Band Select.
00 = GSM input (default).
01 = DCS input.
10 = PCS input.
11 = Reserved.
Program to zero.
Program to one.
Program to zero.
SWAP
must be programmed with the PDN pin is zero. The DIAG1/DIAG2 pins
are held at the desired value regardless of the state of the PDN pin.
0
DIAG1
LOW
LOW
HIGH
HIGH
Rev. 1.0
D9
0
D8
0
D7
TXBAND[1:0]
DIAG2
LOW (default)
HIGH
LOW
HIGH
Function
D6
RXBAND[1:0]
D5
D4
D3
0
D2
0
Aero I
D1
1
D0
0
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