69
16.8 MHz
REF OSC
U203
U201
VCO BUFFER
SYNTHESIZER
U204
ZIF
U3
LOCK_DET
RSSI
9.2(TX)Vdc @ 520MHz
7.7(RX)Vdc @ 520MHz
7.4(TX)Vdc @ 512MHz
UNLOCK=0V
-9dBm
5V REG
4.9(RX)Vdc @ 450MHz
5V
NC
NC
NC
GND
*
3Vdc (TX)
0Vdc (RX)
NC
-12dBm(TX)
NC
1.7Vdc (RX)
1.6Vdc (TX)
6.1(RX)Vdc @ 512MHz
PROGRAMING
NC
NC
4.6Vdc (NOTE 5)
(shield in place)
using 10 pF
GND
GND
1.6Vdc
PINS 31-38 = 2.5Vdc
2.0Vdc
-36dBm (RX)
(NOTE 5)
1.4Vdc
-44dBm (NOTE 5)
2.5Vdc
2.0Vdc typical
2.8Vdc
-53dBm (NOTE 5)
3.4Vdc
2.9Vdc (RX) (NOTE 3)
2Vdc(RX)
16.8MHz
4Vpp
2.8Vdc
*
VCO_MOD
SYN_SEL
4.3Vdc (TX)
DATA
*
1 Vpp
73.35MHz
2.5Vdc
2.3Vdc
CLOCK
SQ_OUT
NC
LOCK=5V
-18dBm
4.5Vdc
-8dBm
2.2Vdc (RX)
0.1Vdc (TX)
1.4Vdc
2.5Vdc
2.3Vdc
DEVIATION
0.1Vdc (RX)
5Vdc
7.5Vdc
NC
NC
2.1/2.4_MHZ
NC
*
NC
NC
NC
1.6Vdc
NC
*
2.6Vdc
*
0V
5V
5.2(TX)Vdc @ 450MHz
TP5 VCTRL
5Vpp (N0te 6)
0Vdc (Rx, Tx) (Note 7)
GND
GND
Else 4.4 Vdc (Note 6)
1.6 Vdc
-23 dBm
TO P301
IF_SEL
RAW B+
1kHz
*
13Vdc
0.7Vdc (RX)
3.3Vdc
IS_B+
1.0A
RAW_B+
GND
(NOTE5)
*
*
NC
*
280mVpp/kHz
4.6Vdc
2.25Vdc (TX)
DURING
DISC
NC
SW_B+
*
3.4Vdc
REF_OSC_SEL
DAC_SEL
0V OR 5Vdc UNLOCK
3.8Vdc
-23dBm
1200mVpp
1.2Vdc
1.7Vdc
2.5Vdc
1.9Vdc (TX)
-7.6 Vdc(Rx) (Note 6)
Else 0 Vdc (Note 7)
-7.8 Vdc(Tx) (Note 6)
NC
B+
CLK
5.1pF
C220
33pF
C55
3
.018uF
C52
CR12
1
2
C266
.01uF
C290
CR206
100pF
2
CR5
Q1
1
3
OUTPUT
1
SENSE
2
SHUTDOWN
3
Q202
U202
6
5V_TAP
5
ERROR
FEEDBACK
7
GND
4
INPUT
8
C209
1
BATT+
2
BATT-
3
NC
C64
.01uF
47K
0.1uF
R35
L201
L205
27nH
22nH
L218
390nH
L204
100nH
L213
L212
22nH
390nH
3300pF
C206
J301-19
100pF
C40
2K
J301-2
2.7K
R16
R208
0.15uF
C53
C48
R51
1.2K
C44
430pF
0.22uF
C45
0.22uF
0.1uF
C61
R221
1.2K
22
D
5V_REG
C233
100pF
R203
C228
100pF
3.3pF
TP5
1
C237
C250
R212
1000pF
750
470
R213
SYN
D
R211
150
39pF
C54
180nH
L24
390nH
L209
CR202
L302
L301
390nH
C305
100pF
390nH
SYN
47K
R46
3
2
0
R47
Q4
1
1A
32V
F1
CR201
C211
100pF
R45
C235
4.3pF
C221
51K
R219
.01uF
10
560nH
4700pF
C65
5V_REG
L23
2.2uH
L25
.01uF
C59
R207
56K
43pF
C56
C38
10pF
C36
5.1pF
R211
R42
470
22
R41
R40
470
CLK
2.1MHz
DAC
150nH
L36
LCK
R48
L208
390nH
C35
470
C313
R209
20K
R17
47K
R34
C271
D
C204
LCK
4.7uF
100pF
100pF
C208
L220
27nH
0.1uF
C41
8.2pF
C95
2.2pF
C58
5.1pF
C245
1000pF
C236
C311
C306
100pF
3300pF
C310
C288
.01uF
100pF
5V_REG
SB+
0.1uF
C47
C258
4.7uF
J301-13
J301-10
J301-15
J301-11
J301-14
S2
6
SV1
5
TRB
4
TX_OUT
10
VC
3
VCC
L215
390nH
11
B2
9
C
12
E2
13
GND
1
GND1
8
NC
16
PS
15
RBY
2
RX_OUT
7
S1
14
0.1uF
C280
R210
330
R53
10K
R220
2K
2.7K
R32
J301-12
L223
C270
1000pF
SCK
21
SO
24
SS
13
VD
D
14
VDD
2
12
VOPT
11
VREG
390nH
NC1
2
27
NC1
3
28
NC14
29
NC15
30
NC16
31
NC17
32
NC18
2
NC2
3
NC3
4
NC4
5
NC5
6
NC6
15
NC7
16
NC8
17
NC9
25
S1
22
23
CE
7
CEX
T
9
DE
8
DET
10
FOUT
26
GND
1
NC1
18
NC10
19
NC11
20
1.5K
R50
C307
100pF
.01uF
C256
L22
470nH
J301-3
C223
4.5pF
43K
FREQ=73.35MHz
FL1
GND
2
GND1
4
OUT
3
1
IN
R215
10uF
.022uF
C244
C240
C231
0.22uF
C43
4.5pF
0.22uF
C42
C39
680
R44
1.8pF
15K
R49
C284
0.22uF
R218
100K
100pF
C308
C51
0.1uF
16.8MHz
2.1MHz
L210
18.9nH
C50
.01uF
C247
0.47uF
C314
J301-18
J301-8
J301-16
100pF
C217
.022uF
C303
J301-20
J301-1
100pF
C304
C315
100pF
100pF
C279
C274
3.9pF
C222
15K
J301-17
.022uF
R205
R206
C210
10K
10K
C254
4.7uF
R204
C125
3.3uF
0.1uF
C63
C255
C219
0.1uF
43pF
C57
3.9pF
0.33uF
C49
10pF
.01uF
C257
8.2pF
C239
11pF
C243
C226
1.5pF
C203
1pF
C205
2.7K
R33
C225
68K
R223
0.1uF
15K
R217
C275
43K
R43
.022uF
C246
R214
C60
0.1uF
L211
11.3nH
J301-5
J301-4
J301-7
C267
.01uF
J301-6
1pF
C292
22nH
L207
18nH
L219
3300pF
C216
Q5
R1=47K
.01uF
C96
R18
200K
10uF
C253
C309
3300pF
C287
.022uF
VMULT2
7
VMULT3
6
VMULT4
16
WARP
14
XTAL1
15
XTAL2
C289
100pF
IADAPT
32
IOUT
41
LOCK
5
MODIN
30
MODOUT
21 PREIN
24
PVREF
43
R_GND1
44
R_GND2
18
SBASE
20
SIN
19 SOUT
26
TST1
27
TST2
36
VCP
9
VMULT1
8
CAP
3
CLK
29 CPBIAS1
28 CPBIAS2
2
DATA
DC5V1
11
23
DC5V2
DC5V3
25
42
DC5V4
31
EN
4
EN_CE
10
FREFOUT
1
GND1
13
GND2
22
GND3
33
GND4
34
.047uF
C260
35
ADAPTTSW
12
AD_BYPASS
37
AUX1
38
AUX2
39
AUX3
40
AUX4
17
C202
L224
1pF
C201
33nH
A1 A2
5
A3
4
K1
1
K2
2
K3
3
CR205
6
C214
100pF
C238
CR209
VIBYPASS
25
Vc
18
Vpp
12
C282
0.1uF
DM_IN
6
GND1
1
GND2
8
GND3
15
GND4
16 26
GND5
41
GND6
GND_PREAMP
3
LO_IN
14
PEAMP_5V
4
PEAMP_OUT
5
PREAMPIN
2
RAMPCAP
24
RSSI_FLT
10
RSSI_OUT
9
SQ
29
23
16.8MHz
22
2.5V
AGC
40
C1NEG
37
C1POS
38
C2NEG
35
C2POS
36
C3NEG
33
C3POS
34
C4NEG
31
C4POS
32
CE
21
CLK
20
DATA
19
DISC
28
DM_BYP
7
J301-9
+2.5V1
27
+2.5V2
30
+5V1
11
+5V2
13
+5V3
17
+5V4
Q201
D
S
CLK
C227
100pF
CR208
CR207
L216
C230
15nH
470nH
L20
D
100pF
C294
L221
390nH
L222
270nH
39
2.2uH
L202
3
K3
0.22uF
C46
6
A1
5
A2
4
A3
1
K1
2
K2
CR204
RX_LO
IF
AGC
CR203
TX_LO
63B81097C03-O
Sheet2 of 2
NUE7265B, NUE7266B, NUE/PMUE7272B, AND NUE7274B UHF (403-470MHz)
TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 2 of 2)
Содержание SYMBOL MT2000 Series
Страница 1: ...HT 1000 JT 1000 MT 2000 MTS 2000 and MTX Series Handie Talkie Portable Radios Service Manual ...
Страница 2: ......
Страница 24: ...2 Notes ...
Страница 78: ...56 Notes ...
Страница 147: ...Appendix A 9 Appendix Figure 2 Secure Module Location Detail ...
Страница 169: ......