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94
NX-900
SCHEMATIC DIAGRAM
3.30V
3.30V
7.91V
7.34V
5.01V
TA : 3.30V
OTHER : 1mV
OTHER : 3.95V
TA : 20mV
3.75V
1.88V
3.20V
1.22V
0.64V
1.64V
T : 0V
R : 1.96V
3.28V
5.00V
3.25V
UNL : 0.30V
LOCK : 3.14V
1.08V
5.01V
4.16V
1.64V
2.12V
4.16V
OTHER : 0V
TA : 3.60V
3.00V
4.83V
MCH3914(8)-H
MCH3914(8)-H
6
XTALACGND/oSC
GNDXTAL
VCCXTAL
XTALoUT/NC
13
C22 100p
100p
I2CDT
I2CCK
C1
22k
1u
C3
R2
0.1u
C4
/PCS_RF
SDO1
P_SCK1
2SK3737-5
BUFFER AMP
22k
R1
33C
100
R77
C2
C88
oUTPUT
GND
R74
18k
R72
0.01u
100p
VC
VCC
L77-3016-05
X1
(19.2MHz)
Q11
0.01u
C9
100p
C6
D21
RN142S
R15 10
R17 10
R18 10
L32
C20 100p
C21 100p
C19 100p
C7
18p
0.01u
C90
1k
C10
39p
4.7k
R8
4.7k
L1
0.01u
4.7u
C92
R10
R6
0
VCCECT/CML
CS
VCCDIGITAL
DATA
20
19
21
CLoCK
MUX_oUT
MoD_IN
GND
25
24
23
22
16
18
17
NC_1
15
14
LD/PSMAIN
3
FVCoMAIN
2
1
FVCoMAIN
CPoUTMAIN
VCCCPMAIN
4
5
ASSIST
PLD
CV
47k
VCO_MOD, /T_R
C26 100p
C23 100p
R13
C27 0.1u
C24 0.1u
100p
C28
1k
R23
10
R21
1SV278F
270n
1SV305F
470k
R76
100
R919
100
R918
LM73CIMKX-0
C5
GND
ALERT
6
SMBDAT
1
ADDR
4
5
SMBCLK
3
2
VDD
0.01u
100
R4
SENSOR
TEMPERATURE
IC1
33C
2.7k
R86
C91
0.01u
0.01u
C13
220
R75
33C
C17 0.01u
10
12
11
XTALIN/oSC
NC
8
7
9
PLL IC
10
C16 0.01u
L33
R16
IC3
80C
L35
VCO TUNE
100p
C361
R81
0
C14
1u
10k
R7
0
RIPPLE
FILTER
2SC5383-T111
R80
Q1
2
BUFFER AMP
(VCO TUNE)
IN+
R22 1k
C29
100p
C25
0.01u
VDD
3
47k
R31
IN-
4
VoUT
XC221A1200MRG
1
VSS
5
82k
R30
IC4
68p
C33
R19
10
L34
50C
50C
50C
VCO_MOD
R37
10k
0.1u
10M
C38
R36
C32
0.047u35
0.15u35
R113
150
C36
10u20
C37
R25
0
R29
0
R35
390
DIODE
D2
DA221
BYPASS
TC75W51FK(F)
VSS
BUFFER AMP (CV)
VCO MODULATION/
68k
R28
100p
C31
1k
R34
47k
R27
100k
R26
3
4
2
6
5
1
VDD
7
8
RIPPLE
R55
4.7k
C56
R44
470p
100k
R45
1u
C48
0
C65
10u
FILTER
R42
100k
Q4
2SC5383-T111
470p
C43
0.1u
IC5
C54
0
R352
L41
L14
D12
1u
47k
R54
150k
C55
47k
R53
R49
470k
L20
1u
C71
R56
MODULATION
TX
D14
L3
1SV278F
FREQUENCY
CONTROL
D8,11,12
D8
R85
C51
L7
R41
1SV325F
100p
C45
D4
0
10u
D11
L12
270n
0
150p
1SV305F
L40
C41
470p
L17
C58
22n
1SV305F
L16
270n
7p
0.75p
C63
C67
10p
Q6
VCO 2
VCO
FREQUENCY
1SV278F
150p
1SV325F
100p
C44
10p
C8
D3
L11
220n
L13
220n
D10
0
L6
10u
R40
CONTROL
0
R84
C50
D7
D7,10
Q5
12p
L15
220n
8p
C64
17.5n
L18
C59
VCO 1
VCO
100p
/T_R
50C
C364
470k
R71
0
R83
(VCO)
SSM6L05FU-F
C77
C75
470p
1k
R60
47k
R61
100p
Q7
T/R SWITCH
R59
180
SSM3J05FU-F
Q8
(RF)
C76
270n
L23
C72
7p
0.5p
100p
C73
270n
C69
5p
100p
C78
33
L21
R153
BUFFER AMP
150k
2SC5636
0.5p
5p
C68
R57
180
L22
220n
(VCO)
Q9
100
R58
C70
100p
6p
C74
C66
220n
L19
R62
C80
100
R63
100p
L25
8.2n
C79
3p
50C
100p
C98
0.1u
C85
47
R68
L36
Q10
C83
2SC5636
10k
R65
R64
6.8k
33p
C82
C84
330
R66
100p
100p
R67
L26
6.8n
2.2k
BUFFER AMP
0
R989
PLL_MOD
R967 10
0
R92
SWITCH
(VCO)
C858
0.01u
L905
100n
1SV278F
D927
C948
0.75p
100k
R111
100k
R110
C60
4p
C61
3p
C46
100p
C862
1.5p
R976
0
0.01
C53
R977
0
100p
C52
L10
33C
D2
MI1
ME
MI1
ME
CONTROL
FREQUENCY
D3
FREQUENCY
D4
CONTROL
D14
D927
TX
MODULATION
T/R
SWITCH
2nd LOCAL
NC_2
NC_3
NC_4
NC_5
NC_6
CV
Fin
SKY72310-362
+
+
+
2
9
2
9
2
9
X57-806 (A/2) 11/14
AY
AZ
BA
BB
BC
TX-RX UNIT (X57-8060-10) (A/2)
Summary of Contents for NEXEDGE NX-900
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