SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 31

• 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 32h. Powerdown
Register 33h. RF1 N Divider
Register 34h. RF2 N Divider
Name
Name
Name
17:16
17:16
15:0
Bit
15:0
Bit
Bit
Bit
Bit
17:2
Bit
1
0
D17 D16 D15 D14 D13 D12 D11 D10 D9
D17 D16 D15 D14 D13 D12 D11 D10 D9
D17 D16 D15 D14 D13 D12 D11 D10 D9
0
0
0
N
Reserved
N
Reserved
RF2
RF1
Name
Name
0
0
0
[15:0]
[15:0]
Reserved
0
Name
PDRB
PDIB
Program to zero.
N Divider for RF PLL (RF2 VCO).
Used for transmit mode.
0
Program to zero.
N Divider for RF PLL (RF1 VCO).
Used for receive mode.
0
0
Program to zero.
Powerdown IF PLL.
0 = IF synthesizer powered down.
1 = IF synthesizer powered up when the PDN pin is high.
Notes:
Powerdown RF PLL.
0 = RF synthesizer powered down.
1 = RF synthesizer powered up when the PDN pin is high.
Notes:
1. The IF PLL is only used in transmit mode. Powerdown for receive mode.
2. This bit is set to 0 when register 20h is written (receive mode).
3. This bit is set to 1 when register 23h is written (transmit mode).
1. This bit is set to 1 when register 20h is written (receive mode).
2. This bit is set to 1 when register 23h is written (transmit mode).
0
0
Rev. 1.0
0
N
N
D8
D8
D8
0
RF1
RF2
Function
Function
[15:0]
[15:0]
D7
D7
D7
0
Function
D6
D6
D6
0
D5
D5
D5
0
D4
D4
D4
0
D3
D3
D3
0
D2
D2
D2
0
Aero I
PDIB
D1
D1
D1
PDRB
D0
D0
D0
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