28
28
SPP-904
• IC Block Diagrams
IC1
LA8633VU-TLM (BASE MAIN Board)
IC403
LA8633VU-TLM (HAND MAIN Board)
IC3
MC3361CDR2 (BASE MAIN Board)
IC401
MC3361CDR2 (HAND MAIN Board)
IC302
M64884FP-C60J (BASE RF Board)
IC502
M64884FP-C60J (HAND RF Board)
IC405
TK11130SCL (HAND MAIN Board)
IC406
XC612N3328MR (HAND MAIN Board)
1
2
3
4
7
8
9
10 11
12
VCA
VB
VCA
6
5
DATA
SHAPE
DRIVE
REGULATOR
15 14
VB
23
24
MUTE
IDC
VB
21
22
20
19
18
VB
17 16
13
PREAMP
SUM AMP
SUM AMP
LPF1 IN
LPF1 OUT
EXP IN
EXT V REC
INT OUT
TEL OUT
V HOLD
INTC CONT
CHARG CONT
FSK OUT
GND
ST BY
VCC
VREF
TX DA
TA
IN
EXP MUTE CONT
CMP MUTE CONT
LPF2 OUT
LPF2 IN
CMP OUT
CMP V REC
CMP NF
PRE NF
PRE IN
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
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
+
+
+
_
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
Содержание SPP-904
Страница 1: ...MICROFILM SERVICE MANUAL CORDLESS TELEPHONE E Model SPECIFICATIONS SPP 904 ...
Страница 3: ...3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Страница 4: ...4 ...
Страница 16: ...16 ...