KCA-BT100
2
BLOCK DIAGRAM
u-COM
MAIN
FLASH
ROM
IC8
IC3
E2PROM
(NOT USED)
BU5V
SW5V
IC5
5V
3.3V
3.3V
5V
IC6
BLUETOOTH
RF MODULE
SYSTEM u-COM
(LX-BUS u-COM)
IC2
A1
IC7
BU5V
SW3.3V
SW3.3V
BU5V
IC4
IC
RESET
(LX-BUS I/F)
CH
J1
CN1
(LX-BUS I/F)
H/U
CHCON
Q3
IC10
Q5
BU DET
A8V
BU5V
Q6,16
Q9,10
IC9
MIC INPUT
J2
Q13
IC11
BU5V
A8V
SW5V
SW3.3V
CODEC
ANTENNA
CHIP
BU5V
BPF
IC13
SELECTOR
5V SW REG
3.3V REG
ROM CORRECTION
L1
PCM
BEEP
BOO
T E
CLK1
DATAH1
REQH1
DATAC1
REQC1
RESETP
TXD
RF TEST
RXD
RT
S
CTS
MUTE1
RESET
MUTEN
CHCON1
RSTN
PON
PON2
D15
D0
A0
A18
A18
A0
D15
D0
16
19
2
2
2
2
2
DX
DR
FS
BCLK
RELA
Y2
B
UDET
RESETP
BOO
T E
SS2
CHCON2
CHCON1
CHCON0
RESET
RSTN
MUTEN
4
BU
Lch2
Rch2
AGND2
MUTE2
RESET2
CONT1
CONT4
CONT3
CONT2
5
5
5
RT
S
TXD
RXD
CTS
BCLK
FS
DX
DR
REQH1
DATAC1
DATAH1
CLK1
REQC1
DATAH2
DATAC2
REQH2
REQC2
CLK2
REQH0
DATAC0
DATAH0
CLK0
REQC0
CHCON0
DATAC2
REQH2
REQC2
DATAH2
CLK2
CHCON2
REQC0
REQH0
DATAC0
DATAH0
CLK0
MUTE0
AGND0
Rch0
Lch0
BU
RESET0
GND
2.45GHz
●
PROCESSOR UNIT (X32-5852-70)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC2
System
µ
-COM (LX-BUS
µ
-COM)
IC3
Main
µ
-COM
IC4
Reset IC
Detection voltage is 3.5V
IC5
5V
→
3.3V Conversion
Level conversion from 5V to 3.3V
IC6
3.5V
→
5V Conversion
Level conversion from 3.3V to 5V
IC7
PCM Codec
IC8
Flash Memory
IC9
3.3V REG
IC10
5V REG
IC11
Analog SW
Switches 5L-signal output and hands-free signal output.
IC12
MIC Input AMP
Amplifies MIC input.
IC13
BPF
Amplifies audio reference circuit signal and hands-free signal.
Q1
SW5V SW
Vb=L: SW5V ON, Vb=H: SW5V OFF
Q2
Reset CONT
Vb=H: It resets IC2 and IC3
COMPONENTS DESCRIPTION