Motorola MTH500 Service Manual page 116

SCHEMATIC DIAGRAMS - MTH500 Transmitter Block (Sheet 1 of 2) )
MTH500 Transmitter Block (Sheet 1 of 2) )
L1T0
LO_Driver_EN
offset_vco
L1T1
LO_Mixer_EN
C855 C824
1.n 270.p
GND
TETEA_TX_LO
L800
C800
68n
82.p R805
560
GND
2.775V_RF
L926
22n
C1032
270.p
GND
ODCT_RESET
SPI_CLK
SPI_MOSI
SPI_MISO
ODCT_CS
TSLOT
TSLOTB
TCLK
TCLKB
OUTQB
OUTQ
OUTIB
OUTI
ASW
2.775V_RF
GND
2.775V_RF
5V_RF+
5V_RF+
GND
L922
BLM10B601SDP
PA_TEMP
6 - 14
Q800
10K
GND
10K
10K
E800
2.775V_RF
BLM10B601SDP
10K
L815
56n
C844 L809 C894
4
100.p
VDD 12.p 12n DG0106A01
1 2
RF_IF IN
R819
3 U800 3
LO_IN 18 IN_GND
6
CMY210
IF_RF
L810
C846
12n
10.p
R800 R808
300 300
C833
GND
470.p
GND GND
2.775V_ODCT 2.775V_ODCT 2.775V_ODCT
N/U
N/U N/U
C1033 C869
100.n
270.p
C809 C874 C870 C868
270.p 100.n 100.n 100.n
GND
GND
GND GND GND GND
N/U
SH801
SHIELD
C1009 C877 C834
6.8n 6.8n 270.p
1
ODCT Shield
GND GND GND
GND
C1031
270.p
GND
2.775V_RF
2.5V_TX
2.5V_TX
Q805
R964
2K
E806
BLM11B601S
R961
R962
330
4.7K
R963
4.7K
GND
R804 C859
390.p
2.2K
GND
FL800
Q808
6
OUT
7
OUT_GND
S1
C847
L808
8.2p R807
22n
510
C853 R820 C854
8.2
1.n 1.n
GND GND GND
GND GND GND GND
2.775V_ODCT
5V_RF+
E803
C704
BLM11B601S
10u
N/U
N/U
GND
C871 C875 C876
100.n 100.n 100.n
L807
GND GND GND
39n
2 51
MRSTB RFOUTB
3 52
SPIC RFOUT
4 46
SPII LOQ
5 45
SPIO LOQB
6 57
SPISB LOI
19 56
OVCO U803 LOIB
20 24
OVCOB ODCT_H19GED MVCO
36 25
RFINB MVCOB
37 41
RFIN LP1QB
38 42
LCAP LP1Q
9 43
SLT LP1IB
10 44
SLTB LP1I
11 32
CLKI CAPO
12 31
CLKIB CAPM
58 47
BINQB LP2QB
59 48
BINQ LP2Q
60 54
BINIB LP2IB
61 55
BINI LP2I
28 64
ASW CAPR
1
CAPRB
23
VSSR
26 13
TST1 LSUB
27 33
TST2 DSUB C880
29 49
TST3 USUB
6.8NF
30 16
TST4 CPO
C878
6.8n
C1020
GND GND
100.n
GND GND
SH802
2.5V_TX
SHIELD
1
L811 C821 C856
ODCT Bottom Shield C828 C857
8.2n 270.p 1.n (LO Line Up) R812
270.p 1.n
270
GND
GND GND
GND GND
R806
1.2K
L813
C843
GND
22.n
15.p C850
C811
4.3p
270.p
U801
C845
SLC_045P
L812
12.p
IN OUT_0
8.2n
R816
ISOL OUT_90
51.
C849
2.4p
C851
GND
3.p
GND
R814
R838
51.
R817
150.
51.
C814
270.p
GND
N/U
GND
C802 C885
270.p 100.n
U804
R833
GND GND 380Mhz
18
1 6
B_IN U_OUT
3 8 C1050
BA_IN NC1 R836 R834
C831
270.p
300 300
1.8p
GND
GND GND
C864
C863
6.8n
6.8n
C816
270.p
R821 R824 R822 R823
18
18 18 18
C815
270.p
C881 C882 C805
C861 4.7n 4.7n 270.p
18.0n
C862
18.0n
GND GND GND GND
RT800 C812
47K 270.p
GND GND
C827
L803 L805
270.p
100n 100n
GND
C819
270.p
1
N/U
C820 C818
270.p
270.p
GND
2
68P02963C70-O