Sanyo EP93F Car Stereo System User Manual


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LC72350LA1776M LC72350 SeriesSeriesLA1776M
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+
+
+
+
+
+
+
+
+
+
+
+
+
0.022
µ
F
0.022
µ
F
100
0.022
µ
F
0.022
µ
F
0.022
µ
F
3p
0.022
µ
F
0.001
µ
F
22
µ
F
0.1
µ
F
0.01
µ
F
0.47
µ
F
0.015
µ
F
0.015
µ
F
AGC ADJ
AM/FM
OSC BUFF
100k
220k
100
180
100k
100k
100k
100k
SVC208
0.022
µ
F
FC18G
+
+
+
+
75
620
1M
100k
min:5k
100
µ
F
470
100
µ
F
100
µ
F
200
100k
220
30M
15p
RF-AGC
AM-MIX-OUT
AM-IF-OUT
AM-IF-IN
FM-IF-IN2
FM-IF-OUT
15p
30
1000p
1000p
1000p
1000p
1000p
15p
AM VCC 8V AM ANTAM/FM ANT IN AM/FM VTFE GND AM/FM SW 10.25kHz IN L-ch R-ch GND VCC FM/AM VSMAM/FM
OSC BUFF
FE VCC
10p
10p
MIX-IN
MIX-IN
AM-MIX-IN
AM-NB-AGC
AM-IF-IN1
FM-WB-AGC
AM-SD-ADJ
FM-IF-IN1
MUTE-ATT
FE
VCC
33
MIX-OUT
MIX-OUT
6p
IN
100k
100k
AM 2nd
MIX IN
VCC
BV
30k
8p
150k
33k
18p
33p
1000p
AM OSC
LPF OUT
HOLD
PLL IN
10.25M IN
NC,MPX GND
MPX OUT L
MPX OUT R
300p
22p
FM ANT D
SVC208
NOISE AGC
SEN
FM RF1-AGC
FM OSC
FE GND
AGC
6800p
PI-CAN
OUT
PI-CAN
IN
0.01
µ
F
0.047
µ
F
0.022
µ
F
3.3
µ
F
3.3
µ
F
0.22
µ
F
0.22
µ
F
0.022
µ
F
0.022
µ
F
0.022
µ
F
100
µ
F
3.3
µ
F
1
µ
F
FM-SD-ADJ
PILOT-DET
AM LC
VCC
1
µ
F
1
µ
F
2.2
µ
F
0.022
µ
F
100k
47k
20k
SEP-ADJ
CSB
912kHz
VCO
PHASE-
COM
PHASE-COM IF Buffer
5/2.5/0V
IF COUNT
BUFFER
AM/FM VSM
GND
51k
GAD
SNC
HCC
NC-IN
FM-VSM
DET-OUT
MRC-OUT
MRCADJ
30k
68k
8200p
1000p
MUTE-DRIVE
VREF
AFC-IN
2.7V
1.3k
30k
100k
10k
KEYED AGC
MUTE-ON
ADJ
ST IND
AM/FM SD
AM/FM SD
ST IND
5V
AM-IF-AGC
56k
AM-IFT
AM-ANT-D
RF-AGC
BYPASS
AM-WAGC-IN
ANT-D
FM OSC
BUFF
AM OSC
BUFF
FM RF
AGC
AM OSC
FM OSC
N-AGC
W-AGC
AM/FM MIX
AM MIX
LEVEL
DET
AM
W-AGC
AM
N-AGC
AM
Vsm
AMIF
AGC
AMDET
AMLC
AM
IF1
AM
IF2
AM
X OSC
1ST
IF
AMP
MUTE
ANT D
AM
AGC
drive
KEYED
AGC
IF-AMP
IF-AMP
IF-AMP
IF-AMP
IF-AMP
IF-AMP
Zap
MUTE
drive
1
3
2
FM AFC
H det
s mute
FM Vsm
Q.DET
MUTE
AMP.
REG
BUFF
Mute
ATT
control
REG
2.7V
REG
NC.MPX
REG
FM IF
REG
AM
REG
FE
SW
IF
count AMP
IF
count SW
FM/AM
SD-ST IND
AM/FM
SW
MRC
out2
time
const
MRC
noise
amp
tri
ger
pilot
det
pilot
can
phase
comp
VCO
stop
HCC
SNC
FF 38k
FF
19k
FF
VCO
Main
HC
Sud De
coder
MATRIX
NC
HPF
NC
LPF
AGTETRIG
NC
AGC
ECL
ECL
ECL
ECL
ECL
+
-
XIN
XOUT
FMIN
SNS
AMIN
HCTR
LCTR
PH2/ADI2
PH1/ADI1
PH0/ADI0
PI1/ADI5
PI0/ADI4
ALU
TIMER 0
TIMER 1
LATCE
B
LATCE
A
read/sritc
status
register
read only
status
register
ADC
(6 bits)
JUDGE
INTERRUPT
CSUST DO
JDC CCD
BANK CFSTACK
PROGRAM COUNTER
INSTRU-
CTION
DECODER
BUS
CONTROL
SKIP
JMP
CAL
RETURN
INTERRUPT
RESET
ROM
RAM
ADDRESS DECODER
8k 16bits
(LC72358)
12k 16bits
(LC72362)
16k 16bits
(LC72366)
512k 4bits
(LC72358/362)
1024k 4bits
(LC72366)
BANK
ADDRESS
DECODER
Time PHASE
CONTROL
UNIVERSAL COUNTER
(20 bits)
DIVIDER
SYSTEM CLOCK
GEMERATOR
SNS F/F
RESET
RESET
VDET
PROGRAMABLE DIVIDER
1/114,1/124
1/16,1/17
MPX
PH3/ADI3
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
BUS
DRIVR.
IOS
ISO
IOS
DATA
LATCH
BUS
DRIVR.
IOS
PJ3
PJ2
PJ1
PJ0
PK3
PK2
PG0
PK1/INT1
PK0/INT0
INTERUPT
DATA
LATCH
BUS
DRIVR.
IOS
PL3
PL2
PL1
PL0
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
IOS
DATA
LATCH
BUS
DRIVR.
IOS
PM3
PN3
PN2
PN1
PN0/BEEP
PM2
PM1
PM0
DATA
LATCH
BUS
DRIVR.
PO3
PO2
PO1
PO0
DATA
LATCH
BUS
DRIVR.
PP3
PPQ
EO1
EO2
BUSPD
EO3
PP2
PP1
PP0
MPX
BEEP TONE
PHASE
DETECTOR
REFERENCE DIVIDER
PLL Data Latch
PHASE
DETECTOR
SUB C.P
PCK0/PG1
SO0/PG2
SI0/PG3
IOS
PF0
PCK1/PF1
SO1/PF2
SI1/PF3
IOS
PE0
PD0
PC0
PB0
BUS
DRIVR.
PA0
TEST2
TEST1
MOLD
PA1
PA2
PA3
PB1
PB2
PB3
PC1
PC2
PC3
PD1
PD2
PD3
PCK2/PE1
SO2/PE2
SI2/PE3
3
SNS
VDD
VSS
1/2
PLL CONTROL
DATA BUS
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
DATA
LATCH
BUS
DRIVR.
14
14
9p
51 Car Audio 52 Car Audio
System-on-Chip Tuner IC for Car Stereo SystemsSystem-on-Chip Tuner IC for Car Stereo Systems
New
product
New
product
New
product
Overview
Functions
Overview
Functions
Features
Block Diagram Block Diagram
Electronic Tuning ETR ControllersElectronic Tuning ETR Controllers
The LC72350 Series (LC72358N, LC72362N, and LC72366) are system-on-chip electronic tuning
microcontrollers with a 1.33 µs instruction execution time.
These devices include both a high-speed locking circuit and a high-performance direct PLL circuit that can control
the local oscillator C/N characteristics.
■ ROM: 16 KB (LC72358N)
24 KB (LC72362N)
32 KB (LC72366)
■ RAM: 512 nibbles (LC72358N and LC72362N)
1024 nibbles (LC72366)
■ A/D converter: 6-bit successive approximation A/D converter with 6 input channels
■ PLL: Built-in sub-charge pump for high-speed locking, built-in dead zone control
■ Serial I/O: Three channels (8-bit 3-wire serial I/O)
■ Multiple interrupt support: 4 levels
■ Cycle time: 1.33 µs (4.5 MHz)
■ QTP version: LC72P366
■ Package: QIP80E (14 20 mm)
■ Characteristics improved by new noise prevention measures in the mixer and amplifier blocks
■ Three-signal characteristics improved due to increased dynamic range in the FM front end mixer
■ Improved AM practical sensitivity and saturation signal-to-noise ratio
■ FM S-meter shifter function can adjust for sample-to-sample variations in the S-meter
(Fixed resistors are used for SD, KEYEDAGC, MUTE ON ADJ, MUTE ATT, SNC, and HCC.)
■ High-speed search is possible using the FM band muting time constant switching function
■ The low power consumption of the earlier device has been reduced even further
■ Increased flexibility in the MRC setting
■ Package: QIP64E (14 14 mm)
■ FM front end
■ Multiplex
■ Noise canceller
■ FM/AM switch
■ FM IF
■ AM upconversion
■ MRC
The LA1776M is a car radio AM/FM tuner IC that is based on the current LA1787M but features improved AM
upconversion (for improved reception characteristics) and improvements in most other characteristics as well.
The LA1776M pin arrangement is only slightly changed from the LA1787M for easy printed circuit board pattern
design.
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