Figure 8-25. Nue7365A/ Nue7369A Mixer And If Filter Circuits - Motorola APX 5000 Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1
DC_LIN_1_8V
IN
L511
7.5NH
C510
TL_RX_B1_MIX_IN
1000PF
IN
C502
L510
L501 C507
4PF
6.8NH 10NH 22PF
C501
22PF
DC_LIN_3V
IN
T505
059248278
C528
TL_RX_LO
100PF
P1 S1
1 3
IN
S2
2
R512
P2
100K S3
6 4
DNP
R501
5
NC
51
DNP
T503
059248278
P1 S1
1
S2
P2 S3
6
NC
DIG_RX_MIX_NC_1
C506 C508 C512
0.1UF 1000PF 33PF DIG_RX_MIX_NC_2
U506
1 15
GND1
MIXBIAS
2 14
INB
GND4
3 13
INA RF_M
4 12
LG2
RF_P
5 11
LG1 GND3
C529
100PF
S1
3
S2
2
C509 C513
1000PF 100PF
S3
4
5
NC
3
2
4
5
C523
L503
470PF
220NH
T504
C515
059248278
6.8PF
P1
1
R502
68
P2
6
L502
C514
47NH 43PF
E501
1 2
R504 R506
C517
3.3K 150
0.1UF
R503
24K
Q501 Q501
2 5
BC858CD BC858CD
R505
180K
C518
1000PF
FL501 L505
L504 C524 C519
31B01
150NH
27PF 18PF
390NH
1 4
IN OUT
C516
2.7PF

Figure 8-25. NUE7365A/ NUE7369A Mixer and IF Filter Circuits

8-35
L506
C520
1000PF 150NH
R511
TL_RX_IF_OUT
2.7
OUT
C522
C525
15PF
3.3PF
R508
15
C521
1000PF
R509
10
R507
2.7K
1 Q503
BFR380F
L507
33NH