SI4205-BM Silicon Laboratories Inc, SI4205-BM Datasheet - Page 27
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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 12h. DAC Configuration
Name
Bit
17:11
6:4
3:2
1:0
Bit
10
9
8
7
D17 D16 D15 D14 D13 D12 D11 D10
0
0
ZERODEL[2:0]
DACCM[1:0]
DACFS[1:0]
Reserved
Reserved
Reserved
0
Name
XBUF
ZDBS
0
0
0
Program to zero.
Program to one.
Reference Buffer Power Control.
0 = Reference buffer disabled.
1 = Reference buffer automatically enabled (default).
Note: This bit should be set to 1 during normal operation. To achieve the lowest
Program to zero.
ZERODEL Band Select.
0 = Use ZERODEL[2:0] settings corresponding to DCS/PCS column
(default).
1 = Use RXBAND[1:0] to determine ZERODEL[2:0] delay setting (GSM
or DCS/PCS).
RX Output Zero Delay.
Code
000:
001:
010:
011:
100:
101:
110:
111:
Note: DAC input is forced to zero after PDN is deasserted. This feature can be
RX Output Common Mode Voltage.
00 = 1.0 V.
01 = 1.25 V (default).
10 = 1.35 V.
11 = Reserved.
RX Output Differential Full Scale Voltage.
00 = 1.0 V
01 = 2.0 V
10 = 3.5 V
11 = Reserved.
0
powerdown current (I
Register 11h must also be set appropriately.
used by the baseband processor to cancel the Si4205 DAC dc offset.
Offsets induced on channels due to 13 MHz harmonics will not be
included in the calibrated value.
PPD
PPD
PPD
1
Rev. 1.0
(default).
XBUF
D9
GSM
90 µs
110 µs
130 µs
140 µs
150 µs
160 µs
180 µs
Reserved
D8
0
PDN
DCS/PCS
130 µs
150 µs
170 µs
180 µs
190 µs
200 µs
220 µs
ZDBS
D7
), this bit should be set to 0. The XPD1 bit in
Function
D6
ZERODEL[2:0]
D5
D4
(default)
D3
DACCM[1:0]
D2
Aero I
D1
DACFS[1:0]
D0
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