Motorola ASTRO Digital XTL 5000 Detailed Service Manual page 524

Index-viii
transmitter injection ....................................... 3-52
transmitter VCOs .......................................... 3-53
voltage multiplier ........................................... 3-51
major board sections .......................................... 3-6
receiver
back-end ....................................................... 3-21
front-end ....................................................... 3-15
transmitter
introduction ................................................... 3-31
ON (output network) ..................................... 3-34
power control ................................................ 3-35
power control loop ........................................ 3-36
protection mechanisms ................................. 3-37
RFPA ................................................... 3-31, 3-33
450-520 MHz band
frequency generation unit (FGU)
charge pump bias ......................................... 3-56
introduction ................................................... 3-54
lock detect ..................................................... 3-56
loop filter ....................................................... 3-56
LV Frac-N synthesizer .................................. 3-55
modulation .................................................... 3-56
prescaler feedback ....................................... 3-58
receiver injection ........................................... 3-57
receiver VCOs .............................................. 3-57
reference oscillator ....................................... 3-55
superfilter ...................................................... 3-56
transmitter injection ....................................... 3-57
transmitter VCOs .......................................... 3-57
voltage multiplier ........................................... 3-55
major board sections .......................................... 3-6
receiver
back-end ....................................................... 3-23
front-end ....................................................... 3-17
transmitter
introduction ................................................... 3-37
ON (output network) ..................................... 3-38
power control ................................................ 3-39
power control loop ........................................ 3-40
protection mechanisms ................................. 3-41
RFPA ............................................................ 3-37
700-800 MHz band
frequency generation unit (FGU)
charge pump bias ......................................... 3-60
introduction ................................................... 3-58
lock detect ..................................................... 3-60
loop filter ....................................................... 3-60
LV Frac-N synthesizer .................................. 3-59
modulation .................................................... 3-60
prescaler feedback ....................................... 3-62
receiver injection ........................................... 3-61
receiver VCOs .............................................. 3-62
reference oscillator ....................................... 3-59
superfilter ...................................................... 3-60
transmitter injection ....................................... 3-61
transmitter VCOs .......................................... 3-61
voltage multiplier ........................................... 3-59
introduction ....................................................... 3-41
major board sections ........................................ 3-10
receiver
May 25, 2005
back-end ....................................................... 3-24
front-end ....................................................... 3-19
transmitter
ON (output network) ..................................... 3-42
power control ................................................ 3-43
power control loop ........................................ 3-44
protection mechanisms ................................. 3-45
RFPA ............................................................ 3-41
control head
W4, W5, W7 ....................................................... 2-2
controller
description ........................................................ 3-62
DSP system clock ............................................ 3-68
MCU system clock ........................................... 3-68
power-up/power-down sequence ..................... 3-68
serial peripheral interface (SPI) bus ................. 3-71
daughtercard module ........................................... 3-64
receive audio ....................................................... 3-72
RF board description ............................................. 3-1
trademark information ................................................... ii
transmit audio, main board ...................................... 3-74
transmitter
136-174 MHz band
50-Watt
ON (output network)
antenna switch .......................................... 3-29
harmonic filter ........................................... 3-29
introduction ............................................... 3-29
power detector .......................................... 3-29
power control ................................................ 3-30
RFPA
driver stage ...................................... 3-27, 3-28
final stage ......................................... 3-27, 3-29
first stage ......................................... 3-27, 3-28
introduction ...................................... 3-26, 3-28
components ........................................................ 2-9
power control
power control loop ........................................ 3-30
protection mechanisms ................................. 3-31
theory of operation ........................................... 3-26
380-470 MHz band
40-Watt
ON (output network)
antenna switch .......................................... 3-34
harmonic filter ........................................... 3-34
introduction ............................................... 3-34
power detector .......................................... 3-35
power control ................................................ 3-35
RFPA
driver stage ...................................... 3-32, 3-33
final stage ......................................... 3-32, 3-34
first stage ......................................... 3-32, 3-33
introduction ...................................... 3-31, 3-33
components ........................................................ 2-9
power control
power control loop ........................................ 3-36
protection mechanisms ................................. 3-37
theory of operation ........................................... 3-31
450-520 MHz band
45-Watt
ON (output network)
6881096C74-B