Transmit modes should always use fø = 200kHz. The IF and RF output frequencies are set by
programming he N-Divider registers and also programmed via 3-wire interface with external system
controller.
-15-
3.3 Transmitter Part
The Transmitter part contains the transmitter parts of Si4205-BM[U803], Power Amp Module[U804]
and Antenna switch[FL801]. The transmit section of Si4205-BM [U502] consists of an I/Q baseband
upconverter, an offset phase-locked loop(OPLL) and two output buffers that can drive external power
amplifiers(PA).
The RF GMSK outputs from the transmit VCO are fed directly to the RF power amplifiers.
The peak output power and the profile of the transmitted burst are controlled by means of
incorporated power control circuits inside of PA and DAC output from the Baseband Controller.
The PA outputs pass to the antenna connector via Antenna Switch.
Figure 2. Synthesizer Block
Serial
I/O
Serial
I/O
Baseband
(TI)
U101
IOTA
+
U102
Calypso
Baseband
(TI)
U101
IOTA
+
U102
Calypso
U803/Si4205
RF1
RF2
PDIB
26MHz
X801
VC-TCXO
SCLK
SDI
SDO
SEN
PDN
XIN
XOUT
XEN
Power
control
Power
control
Self
Tune
Self
Tune
1/N
1/N
1/N
1/N
Φ
DET
Φ
DET
Self
Tune
Self
Tune
Φ
DET
Φ
DET
To Rx/Tx
To Tx
RF PLL
IF PLL
PDRB
SDOSEL[4:0]
N
IF
[15:0]
N
RF1
[15:0]
N
RF2
[15:0]
÷
1,2
÷
1,2
÷
65,130
÷
65,130
Summary of Contents for L1100
Page 1: ...Service Manual Model L1100 Service Manual L1100 P N MMBD0032801 Date June 2004 Issue 1 0 ...
Page 31: ... 30 Figure 14 Power Supply Scheme ...
Page 46: ... 45 Figure 25 CLC344E Camera Chip Circuit ...
Page 49: ... 48 Figure 28 Camera Module Circuit MAIN BOARD FPCB ...
Page 62: ...4 9 Microphone Trouble 61 Circuit Diagram ...
Page 82: ... 81 U602 FPCB CN2 1 3 U601 5 4 Test Points 1 20 2 19 ...
Page 98: ...5 1 Disassembly 5 ASSEMBLY INSTRUCTION 97 2 1 1 2 ...
Page 99: ...98 1 2 3 2 1 ...
Page 100: ... 99 1 2 3 ...
Page 101: ... 100 ...
Page 103: ...6 2 Download Procedure 1 Execute Fluid_GUI exe and select Erase Program flash menu 104 ...
Page 104: ...2 Click the Add button Then choose m0 file which is going to download 105 ...
Page 108: ...6 Wait for downloading to be finished 109 ...
Page 125: ... 127 9 PCB LAYOUT ...
Page 126: ... 128 9 PCB LAYOUT ...
Page 129: ... 131 12 EXPLODED VIEW REPLACEMENT PART LIST 12 1 EXPLODED VIEW ...