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5 4 3 2 1




TU1
FM/AM FRONTEND TUNER

TP38 FM/AM FRONTEND
D
TUNER D




1




IF COUNTER
+ C100
C101 C99




S_METER




MAIN B+
AF_OUT
0.1u




AM ANT
FM ANT




AMOSC
FMOSC




ST_IND




R/OUT
L/OUT
GND2



GND3
0.022u 100u/16V




FMB+
GND

NC2




NC3



NC4

NC5

NC6

NC7




NC8
S/D
VT
C102
L3 R133
J3




10

11

12

13

14

15

16

17

18

19

20

21

22

23

24
0.01u




1

2

3

4

5



6

7

8

9
AM ANT COIL 4R7
RADIO_9V
ANT 1

S/D
2




ST_IND C103 R134
AF_OUT C104 R135
R136 16K 0.022u 0
R/OUT 100K




+
S-METER
D7 4u7/16V(T) S-METER
R137 R138 16K ST_IND
L/OUT ST_IND




+
DSP-141N AF_MUTE R/OUT
100 C106 R139 C105 4u7/16V(T) R/OUT
S-METER
0.22u 100K L/OUT
R141 R140 L/OUT
C107 IF_REQUEST S/D
39K 1K S/D
0.022u PLL_DATA
C
RDS OPTION PLL_DATA
C


Q24 R142 PLL_CL
C108 R144 PLL_CL




0.022u



0.022u
0.001u
PLL_CE




+




C110
R143




C111



C112
2K2 PLL_CE
1K D1304 RDATA
4R7 2u2/16V(T) R145 RDATA
C109 C113 R146 D8 RCLK
470p 100 RCLK
0.022u Q25 R148
150 KDS160




0.1u
16

15

14

13

12

11

10




C118 100u/16V
AF_MUTE




9
+ D1304 2K2 AF_MUTE




2
C115 C116




DO2

NC4

NC3

IF COUNT



FMIN
GND



AMIN

VDD
C114 0.01u + RADIO_5V
100u/16V 0.1u C117




C119
+ RADIO_5V
ZD810
R149
R150 U13 5V1
4u7/16V RADIO_9V




1
C120 1K RADIO_9V
470 Q26 KIC9256F R147




DATA

OUT1

NC1

NC2
560p Q28




XO



CE

CL
GND




XI
Q27 C3875Y 47(2012) GND
8 CMP1 T2 9 C3875Y
C3875Y




1

2

3

4

5

6

7

8
7 VSS1 T1 10

6 11 RADIO_9V
VSS2 VSS3
B
5 VDD+ CMP2 12 R152 B

R153 RADIO_5V
4 MUX XI 13 R151 Y2
C121 1K2 1K2 Q29
3 VRET XO 14 Y1 22
4.332MHz 7.2MHz A1504Y
+




2u2/16V 2 RDATA NC 15
PLL_DATA
1 OUAL RCLK 16 C122 C123 PLL_CL
C124 C125 33p 33p PLL_CE
22p
U14 22p

BU1924F RCLK
RDATA

FMB+




A A




Title
FM/AM FRONTEND TUNER

Size Document Number Rev
A3

Date: Tuesday, October 12, 2004 Sheet 2 of 4
5 4 3 2 1