Motorola APX 2000 - Page 1013

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: 700 – 800 MHz (84012619001) 8-183
Figure 8-89. Receiver Front End Circuit
IF402M20
IF401M20
IN
IN
CTRL_RX_78_LNA_A = 3V (HIGH), LNA'S TURN ON
CTRL_RX_78_LNA_A
DC_LIN_1_8V_A
CTRL_RX_78_SW1 = 0V, 700 PATH SELECTED
SW1 AND SW2 HAVE TO BE OPPOSITE
CTRL_RX_78_SW2 = 0V, 800 PATH SELECTED
IF403M20
TL_RX_78
IN
FL401M20
U402M20
C404M20
R450M20
R451M20
C406M20
C402M20
RF_RX_7_SW1
RF_RX_8_F1IN
RF_RX_8_SW1
RF_RX_7_F1OUT
RF_RX_78_SW1
CTRL_RX_78_SW2
RF_RX_7_F1IN
CTRL_RX_78_SW1
IN1 OUT1
OUT2
GND4 GND3
GND2
GND1
IN2
V1
J1
V2
J2
GND
J3
C416M20
C413M20
U404M20
R458M20
L408M20
L407M20
RF_RX_8_F1OUT
CTRL_RX_78_SW1
RF_RX_7_SW2
RF_RX_8_SW2
V1
J1
V2
J2
GND
J3
C418M20
L403M20
U406M20
L402M20
L401M20
R406M20
R405M20
C426M20
C425M20
C421M20
C423M20
C422M20
R456M20
C487M20
R447M20
C484M20
RF_RX_78_SW2
DC_RX_78_LNA_E
RF_RX_78_LNA1_B
RF_RX_78_LNA1_C RF_RX_78_LNA1_A
RF_RX_78_LNA1_FRF_RX_78_LNA1_E
CTRL_RX_78_SW2
E401M20
Q401M20
R403M20
R401M20
R402M20
Q402M20
Q402M20
DC_RX_78_LNA_A
DC_RX_78_LNA_DDC_RX_78_LNA_C
DC_RX_78_LNA_B
CTRL_RX_78_LNA_B
22K
22K
C427M20
R404M20
R413M20
C424M20
R407M20
E402M20
R409M20 R410M20
DC_RX_78_LNA_G
DC_RX_78_LNA_H
DC_RX_78_LNA_F
Q403M20
C434M20C431M20
R408M20
C428M20 C429M20
Q403M20
DC_RX_78_LNA_J
DC_RX_78_LNA_I
L404M20
C432M20
L405M20
R412M20
RF_RX_78_LNA2_C
RF_RX_78_LNA2_F
R457M20
L406M20
R411M20
U407M20
C433M20
RF_RX_78_LNA2_D
R448M20
C485M20
C430M20
RF_RX_78_LNA2_E
RF_RX_78_LNA2_B
U405M20
C417M20 C419M20
CTRL_RX_78_SW2
CTRL_RX_78_SW1
RF_RX_7_SW4
RF_RX_78_LNA2_A
V1
J1
V2
J2
GND
J3
R455M20
R454M20
RF_RX_8_SW4
FL402M20
RF_RX_7_F2OUT
RF_RX_8_F2OUT
RF_RX_7_F2IN
IN1 OUT1
OUT2
GND4
GND3
GND2
GND1
IN2
R453M20
R452M20
RF_RX_7_SW3
RF_RX_8_F2IN
C407M20
U403M20
C405M20
RF_RX_8_SW3
CTRL_RX_78_SW2
CTRL_RX_78_SW1
RF_RX_78_SW3
V1
J1
V2
J2
GND
J3
IF404M20
IF405M20
U408M20
U408M20
U408M20
CTRL_RX_78_SW1
DC_LIN_3V
CTRL_RX_78_SW2
NC
GND
VCC
IN
IN
C492M20C490M20
L491M20
C488M20
L489M20
IF406M20
RF_RX_FE_B2_OUT
OUT