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• IC Block Diagrams
IC1
IR3N74AN (BASE MAIN Board)
IC602
IR3N74AN (HAND MAIN Board)
IC3
MC3361CD (BASE MAIN Board)
IC601
MC3361CD (HAND MAIN Board)
+
–
12
9
8
7
11
10
1
2
3
4
6
–
+
MUTE
MUTE
LIMITER
REGULATOR
∆
G
∆
G
VREF
GND
MUTEC
CO
VCC
MUTEE
EO
EREC
EPI
VREF
CREC
ACP
CPI
VREF
VREF
VREF
–
+
+
–
–
+
5
MIXER
OUTPUT
LIMITER
INPUT
2
3
VCC
4
5
DECOUPLING
6
QUAD
COIL
7
8
CRYSTAL
OSC
1
MUTE
SQUELCH
IN
15
14
SCAN
CONTROL
GND
FILTER
INPUT
13
12
FILTER
OUTPUT
11
RECOVERED
AUDIO
10
9
MIXER
INPUT
16
SQUELCH TRIGGER WITH
HYSTERESIS
MIXER
OSCILLATOR
FILTER
AMP
AF
AMP
LIMITER
AMP
DEMODULATOR
+
+
+
_
IC302
M64884FP-C60J (BASE RF Board)
IC502
M64884FP-C60J (HAND RF Board)
IC604
TK11130SCL (HAND MAIN Board)
IC605
XC612N3328MR (HAND MAIN Board)
PROGRAMMABLE
DEVIDER
LATCH
PROGRAMMABLE
DEVIDER
LATCH
PROGRAMMABLE
DEVIDER
LATCH
1/2
1/16, 1/17
PRESCALER
1/32, 1/33
PRESCALER
VCO (TX)
OSC &
1/2 DEVIDER
1
2
3
4
5
6
7
8
9
10
11
12
PHASE
DETECTOR
LATCH
SELECT
SHIFT
REGISTOR
PULSE
COUNTER
17
16 15
PHASE
DETECTOR
MIX
VCO (RX)
21
20
19
18
24
23
22
LOCK
DETECTOR
14
13
TX GND1
TX OUT
TX VCC
TXB
TXE
TX GND2
PD1
VCC
XIN
XOUT
XBO
GND
MIX OUT
LOCK
CPS
SI
RST
PD2
RX GND
RXE
RXB
RX VCC
MIX GND
MIX IN
REGULATOR
COMP.
COMP.
THERMAL
SENSOR
VOLTAGE
CONTROL
BANDGAP
REFERENCE
VIN
VOUT
CONT
VREF
GND
5
4
1
3
2
COMP.
COMP.
REFERENCE
VOLTAGE
VDET2
VIN2
VDET1
VSS
VIN1
5
4
1
3
2
IC5
MC34018P (BASE MAIN Board)
+
–
5
15
TRANSMIT
ATT
MIC AMP
SP AMP
RECEIVE
ATT
ATT
CONTROL
VCC
REG
PEAK
LIMITER
TRANSMIT
LOG AMP
RECEIVE
LOG AMP
+
–
+
–
+
–
VB
REG
17
20
23
24
25
26
27
28
4
3
2
1
6 7
8
9
11
10
12
16
19
18
21
22
13
14
TRANSMIT DET
COMPRESSOR
TRANSMIT-RECEIVE
COMPRESSOR
VTH
VCC
VCC
VB
VB
VB
RR
RTX
TXI
TXO
TLI
TLO
RLI
RLO
MCI
MCO
CP1
CP2
XDI
SKG
SKO
VCC
AGC
CS
SKI
5.4V
VB
XDC
VLC
ACF
RXO
RXI
RRX
+
–
GND
Содержание SPP-933 - 900mhz Cordless Telephone
Страница 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
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Страница 27: ... 35 SPP 933 934 5 10 SCHEMATIC DIAGRAM BASE KEY Section Page 32 ...