Figure 8-87. Mnus4002A/E 700-800 Mhz Receiver Front End Circuit - Motorola APX 7000 Detailed Service Manual

8-188
DC_LIN_1_8V_A
IN
IN
CTRL_RX_78_SW2
C402
TL_RX_78
33PF
IN
C404
33PF
CTRL_RX_78_SW2
C405
33PF
DC_LIN_3V
IN
U408
VCC
U408
NC7WZ04
GND 3
CTRL_RX_78_SW2
CTRL_RX_78_SW1
U408
NC7WZ04
1 6
IN
Figure 8-87. MNUS4002A/E 700–800 MHz Receiver Front End Circuit
Q401
MUN5212T
22K
CTRL_RX_78_LNA_A
1
L407
7.5NH
C412
C408
15PF
0
U402
AS211334
4 3 FL401
V1 J2
B4232
5 2 1 7
J1 GND IN1 OUT1
3 5
IN2 OUT2
6 1
V2
J3
C413
C409
47PF
0
L408
10NH
C406
33PF
C414
C410
0
0
U403
AS211334
FL402
4
3
V1 J2
B4232
5 2 1 7
J1 GND IN1 OUT1
3 5
IN2 OUT2
6 1
V2 J3
C411
0
C415
0
C407
33PF
NC7WZ04
4
NC
E401
1 2
R403 R404
3.3K 68
R401
22K
3
Q402
C424
BC858CD
Q402
5 2 33PF
BC858CD
R402
82K
C421 C422
L402
4.7UF 33PF
12NH
C425
L401
3PF
CTRL_RX_78_SW2
U404 12NH
AS211334
1 6
J3 V2 C423
6.8PF
2 5
1 U406
GND J1
BFR380F
3 4
J2 V1
L403
2.4NH
C416 C418
33PF
33PF
U405 CTRL_RX_78_SW2
AS211334
1 6
J3 V2
2 5
GND J1
3 4
J2 V1
C419
C417
33PF
33PF
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2/ 700–800 MHz
C427
4.7UF
R413
2.7
R406
2.7
E402
1 2
C426
1PF
R409 R410
3.3K 68
R407
22K
R405
10
BC858CD
Q403
Q403 2 5
BC858CD
R408
82K
C428 C429
4.7UF 33PF
L404
12NH
C430
6.8PF
1
C431 C434
33PF 4.7UF
L405
12NH
R412
C432
RF_RX_FE_B2_OUT
2.7
3PF
OUT
C433
U407
.5PF
BFR380F
R411
10
L406
4.7NH