SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 25
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SI4205-BM
Manufacturer Part Number
SI4205-BM
Description
IC TXRX TRI-BAND 32LGA
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI4205-BM.pdf
(38 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI4205-BM
Manufacturer:
SILICON
Quantity:
6 119
Company:
Part Number:
SI4205-BMR
Manufacturer:
SILAB
Quantity:
18 603
Register 05h. Receive Gain
Name
Bit
17:14
13:8
6:4
3:2
1:0
Bit
7
D17 D16 D15 D14 D13 D12 D11 D10
0
0
DGAIN[5:0]
AGAIN[2:0]
LNAG[1:0]
LNAC[1:0]
Reserved
Reserved
0
Name
0
Program to zero.
Digital PGA Gain Control.
00h = 0 dB (default).
01h = 1 dB.
...
3Fh = 63 dB.
Note: See “AN51: Aero Transceiver AGC Strategy” for details on setting the gain
Program to zero.
Analog PGA Gain Control.
000 = 0 dB (default).
001 = 4 dB.
010 = 8 dB.
011 = 12 dB.
100 = 16 dB.
101 = Reserved.
110 = Reserved.
111 = Reserved.
Note: See “AN51: Aero Transceiver AGC Strategy” for details on setting the gain
LNA Bias Current Control.
00 = Minimum current (default).
01 = Maximum current.
10 = Reserved.
11 = Reserved.
Note: Program these bits to the same value as LNAG[1:0].
LNA Gain Control.
00 = Minimum gain (default).
01 = Maximum gain.
10 = Reserved.
11 = Reserved.
Notes:
1. Program these bits to the same value as LNAC[1:0].
2. See “AN51: Aero Transceiver AGC Strategy” for details on setting the gain
DGAIN[5:0]
registers.
registers.
registers.
Rev. 1.0
D9
D8
D7
0
Function
D6
AGAIN[2:0]
D5
D4
D3
LNAC[1:0]
D2
Aero I
D1
LNAG[1:0]
D0
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