Sailor RT2047 - System Block Diagram

1 GENERAL INFORMATION RT2047 DSC - PART II
PAGE 1-7
1.5 BLOCKDIAGRAM
Phase
Detector
Rx-Reference
Divider
Rx VCO
Loop
Filter
÷168
÷33/32
Prescaler
7 bit
A-counter N-counter
10 bit
Control-logic
Mixer
Second 455 kHz IF
and Detector
First
Mixer
21.4 MHz IFRF-AMP
Mixer
16.8 MHz
÷32
Filter
Loop Phase/Freq.
Detector
Reference
Divider
Tx-Buffer Tx-VCO
X-Tal
Oscilllator
21 MHz
PA-Driver
PA-Power
AMP
Harm
Filter
+13V
fTx
+
-
16.8 MHz
525 kHz
2.1 MHz
fLO1
fRx
f2IF AF
PA-Reg
+ Distress
SQ-Filter Rectifier Comparator
AF-Mute
EEPROM
Delayed OFF
+10V Sensor
Buffer +
Rx/Tx
+10V Tx
Delay Driver
+10V VCO
ON/OFF
AUX II Relay
Cry
AUX I
Driver
Battery
Sensor
D/A
Converter
6dB/Octave
Filter
Telephone
AMP
Vol-
Attenuator
AF-Power
Amplifier
AF from Rx
Buffer
MIC.-AMP.
Integrator
MIC. + AMP.
Clipper
MIC.-AMP.
Pre-Empaasis
Selcall Relay
+AF to inform.
Decoder
+5V +10V KEY-Buffer
Detector
÷2
able
Counter
AMP/Limiter
Filter
Switched
Bandpass
Capacitor
Programm-
ON/OFF
Rx-Filter
Control-AMPFilter
Duplex
Serial
Interface
Buffers
Display
Driver
nication
Commu-
Serial
Driver
Interrupt
CircuitGenerator
Constant
Current
Interface
Display
LCD-
Loudspeaker
uC
Int
Reset
2.1MHz
2.1MHz
+13V
+10V
+10V
+13V
+13V +5V
+10V+13V
MIC. IN TELEPHONE OUT AF FROM Rx HANDSET KEY
SERIAL DATA INTERRUPT
+13V +5V
Seriel
Interface
Buffers
uC
Int.
+13V PS
-13V PS
PATCH
INPUT
+13V +13V
1
1
1
1
1
1
2
8
9
5
4
7
5
48
3
9
Antenna
Relay
Control
Filter
+5V Keyboard
Buffer
24312D
3
3
AUX LS
PHONE
ON/OFF to
24V Supply
20.945 MHz
(MODULE 200)
INTERFACE (MODULE 6)
KEYBOARD (MODULE 7)
Tx-EXCITER (MODULE 300)
RECEIVER (MODULE 100)
PA-AMPLIFIER
Rx-SYNTHESIZER
(MODULE 400 & 500)
9543