Block Diagram; Components Description; Processor Unit (X32-5852-70) - Kenwood KCA-BT100 Service Manual

KCA-BT100
ROM CORRECTION
(NOT USED)
2
E2PROM
BU5V
L1
CHIP
ANTENNA
2.45GHz
5

PROCESSOR UNIT (X32-5852-70)

Ref. No. Application / Function
System µ-COM (LX-BUS µ-COM)
IC2
Main µ-COM
IC3
IC4 Reset IC
5V → 3.3V Conversion
IC5
3.5V → 5V Conversion
IC6
IC7 PCM Codec
IC8 Flash Memory
IC9 3.3V REG
IC10 5V REG
IC11 Analog SW
IC12 MIC Input AMP
IC13 BPF
Q1 SW5V SW
Q2 Reset CONT
2

BLOCK DIAGRAM

IC3
D0
D15
A0
A18
CLK1
MAIN
DATAH1
u-COM
DATAC1
PON
REQH1
REQC1 PON2
CHCON1
RSTN
MUTEN
BEEP
2 2
BU5V
IC6 IC5
3.3V 5V
5V 3.3V
2 2
A1
DX
4
DR
FS
BCLK
BLUETOOTH
RF MODULE
SW3.3V
IC2
CLK2
CLK1 DATAH2
DATAH1 DATAC2
DATAC1 REQH2
REQH1 REQC2
SYSTEM u-COM
REQC1
(LX-BUS u-COM)
CLK0
DATAH0
DATAC0
REQH0
REQC0
BU5V

COMPONENTS DESCRIPTION

Detection voltage is 3.5V
Level conversion from 5V to 3.3V
Level conversion from 3.3V to 5V
Switches 5L-signal output and hands-free signal output.
Amplifies MIC input.
Amplifies audio reference circuit signal and hands-free signal.
Vb=L: SW5V ON, Vb=H: SW5V OFF
Vb=H: It resets IC2 and IC3
IC8
D0
16
D15
FLASH SW5V
A0
19 ROM
A18
IC11
CONT1
IC7
CONT4
DX
CONT2
DR
FS CONT3
BCLK
SELECTOR
PCM
CODEC
SW3.3V
5
5
IC4
RESET
BU5V
IC
Operation / Condition / Compatibility
J1
CH
(LX-BUS I/F)
BU
Lch2
AGND2
Rch2
MUTE2
CLK2
DATAH2
DATAC2
REQH2
REQC2
CHCON2
RESET2
IC13
BPF
J2
MIC INPUT
Q13
CN1
H/U
(LX-BUS I/F)
BU
GND
Lch0
AGND0
Rch0
Q3
MUTE0
CHCON CLK0
DATAH0
DATAC0
REQH0
Q5
REQC0
BU DET
CHCON0
Q6,16
RESET0
BU5V BU5V
Q9,10
A8V
A8V
IC10
SW5V
5V SW REG
IC9
SW3.3V 3.3V REG