Figure 8-43. Nue7366A Frequency Generation Unit (Synthesizer) Circuit – 1 Of 2 - Motorola APX 5000 Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2
DC_LIN_1_5V
IN
DC_LIN_1_875V_D
IN
DC_LIN_2_775V
IN
DC_LIN_5V
IN
DC_LIN_2_775V
L720
2.2UH
C715
.1UF
D722
IMN10
C716
4 3
.1UF A1 K1
5 2
A2 K2
6 1
A3 K3
C717
.1UF
C718
.1UF D723
IMN10
4 3
A1 K1
5 2
A2 K2
6 1
C719 A3 K3
.1UF
DC_LIN_1_875V_D
R721
10K
DIG_CTRL_RSTB
IN
RF_PRESCALAR
IN
DC_LIN_2_775V DC_LIN_1_875V_D DC_LIN_2_775V DC_LIN_2_775V
L733 L735
2.2UH 2.2UH
L727
2.2UH
C734
C726 C730 C737
.1UF
.1UF .1UF .1UF
C724 C725
10UF .1UF
DIG_DATA_AUX_SPI_MISO
D3
AGC_REF
A6
AGC_FLAG
K6
AUX_DAC
A5
NC RFSTEPA_GPO6
C3
NC
AGC_DAC
B5
NC DC_CAL_GPO5
B2
NC BP_I
C1
NC
RXI
C2
NC RXIX
B1
NC BP_IX
A10
NC
SDM_VAG
E1
NC BP_Q
D1
NC RXQ
D2
NC
RXQX RXQX
E2
NC BP_QX
F5
NC SCAN_IN
B6
NC
RX_EN_OUT
J7
NC ICAP
K7
NC QCAP
J10
NC CLK_OUT
J11
NC TCLK
L6
NC NTXQ
L7
NC TXQ
K8
NC NTXI
L8
NC TXI
F8
NC INCR_DECR
G11
NC
PHCLK
A3
NC FBQ
A4
NC FBI
DC_LIN_2_775V
DC_LIN_2_775V_16_8_MHZ_IN
L728
390NH
C731
.1UF
Y701
1XTV16800VDA
R729 16.8MHZ C736
22K .01UF
1 3
VCONT
OUTPUT
5
NC1 NC
6
NC2 NC
7
NC3 NC
8
C732 NC
NC4
100PF
L738
2.2UH
U702
15H28
R706
0
D9
SPI_DR
D8
CEX
D10
C756
SPI_DW
C11 10UF
SPI_CLK
F9
TXFS
F10
TXCLK
F11
TXD
F7
DMCS
D11
RXD NC
E9
RXCLK NC
E8
NC
RXFS
D7
RXACQ
J2
ESC_IN NC
L3
NC
ESC_CP
K1
ESCD2_OUT NC
K2
ESCD2_OUTX NC
H2
NC
ESC_INX
L9
HP_MOD_OUT
G2
MN_ADAPT_CP
R755
39K
H1
M_PRSCX
G1
M_PRSC
C749
.1UF
G3
MN_CP
C744
10UF
C742
.1UF
L741 DC_LIN_2_775V_16_8_MHZ_IN
2.2UH
R702
0
R745 C750
22K .1UF
C739
10PF
U746
1
BFQ67W
C752
.01UF
R743
47K
R751
270 C710
C711
560PF
56PF
DNP
DNP
Figure 8-43. NUE7366A Frequency Generation Unit (Synthesizer) Circuit – 1 of 2
DC_LIN_2_775V
DC_LIN_1_5V
DIG_CTRL_LOCK
DIG_DATA_SPI_MISO
DIG_CTRL_SPI_TRIDENT_PE
DIG_DATA_SPI_MOSI
DIG_SPI_CLK
DIG_TX_SSI_FS
DIG_TX_SSI_CLK
DIG_DATA_TX_SSI
DIG_CTRL_SSI_TRIGGER
RF_HP_MOD_OUT
ANA_ADAPT_CHARGE_PUMP
ANA_CHARGE_PUMP
DC_SUPER_FILTER_5V
C757
.1UF
DC_LIN_2_775V
DIG_CTRL_TU1H
C758
.047UF
DIG_CTRL_TR
DIG_CTRL_TR
R707
0
U703 DIG_DATA_AUX_SPI_MISO
MAX7301ATL
DIG_CTRL_TXH1
32 40
SCLK DOUT
34 30
CS P4 NC
DIG_CTRL_F
33 28
DIN P5
26
P6 NC
36 24
ISET P7
1
P8 NC
29 3
P31 P9
27 5
P30 P10 NC
DIG_CTRL_C
25 7
NC P29 P11
23 2
NC P28 P12 NC
22 4
P27 P13 NC DIG_CTRL_VTUR1
R754 RF BRD ID 21 6
P26 P14 NC
5.6K 19 8
P25 P15
RF BRD ID
R753 18 9
P24 P16 NC
5.6K 17 10
P23 P17 NC
RF BRD ID R752 16 12
P22 P18
5.6K
15 13
P21 P19
DIG_CTRL_UT1
14
P20 NC
11 DIG_CTRL_UT2
NC1 NC
20
NC2 NC
31
NC
NC3
DIG_CTRL_ATTH
DIG_CTRL_I_LIMIT
DIG_CTRL_RMTH
DIG_CTRL_G
DIG_CTRL_B
DIG_CTRL_UR2
L753
2.2UH
CLK_16_8_MHZ
C712
C754
270PF
56PF
DNP
8-69
OUT
OUT
OUT
OUT
IN
IN
IN
OUT
OUT
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT