SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 30

• 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 31h. Main Configuration
30
Name
Bit
17:15
14:11
10:5
2:1
Bit
4
3
0
D17 D16 D15 D14 D13 D12 D11 D10 D9
0
0
SDOSEL[3:0]
Reserved
Reserved
Reserved
Reserved
0
Name
RFUP
DIV2
SDOSEL[3:0]
Program to zero.
SDO Output Control Register.
The mux_output table is as follows:
Notes:
Program to zero.
RF PLL Update Rate (RF1 VCO only).
0 = 200 kHz update rate (Receive GSM modes).
1 = 100 kHz update rate (Receive DCS and PCS modes).
Note: This bit is set to 1 when register 20h D[17:16] = 01
Input Clock Frequency.
0 = No divider. XIN = 13 MHz.
1 = Divide XIN by 2. XIN = 26 MHz.
Program to zero.
Program to one.
1. SDO is high-impedance when PDN = 0.
2. SDO is Serial Data Output when in register read mode.
0000 Connected to the Output Shift Register (default).
0001 Force the Output to Low.
0010 Reference Clock.
0011 Lock Detect (LDETB) Signal from Phase Detectors.
1111 High Impedance.
PCS 1900 receive modes) and is set to 0 when D[17:16] = 00
(GSM 850 or GSM 900 modes).
0
Rev. 1.0
0
D8
0
D7
0
Function
D6
0
D5
0
RFUP
D4
DIV2
D3
b
or 10
D2
b
0
(DCS 1800 or
b
D1
or 11
0
b
D0
1