Sanyo EP93F - Manual (Page 24)

LA17000M LC75410E/W LC75410E/W LA17000M
1
FM
ANTD
ANT D
2
FM RF
AGC
3
FE
GND
4
FM
OSC
5 6
AM/FM
SW
7
AM
OSC
8
NC
Sens
9
NC
AGC
10
AM
OSC
11
Gore
OUT
12 13
MPX
Pdot IN
14
NC MPX GND
15 16 17
SD
ST-IND
18
PLL IN
19 20
PD1
41
AM/FM
S-METER
42 43
MRC
OUT
44 SNC HCC NC 45 46 47
DET
OUT
SEP
ADJ
48
FM
S-METER
49
MUTE
DRIVE
50
AFC
IN
51
QD
OUT
52
QD
IN
53
VREF
54
FM
SD
55
KEYED
AGC
56
VCC
57
C.
HCC
58
AM
LC
59
PILOT
DET
60
IF
AGC
21
PLL
VSS
22 PDS
23 XBUFF
24 I/O-2
25 X' IN
26 X' OUT
27 CE
28 DI
29 CL
30 DO
31 I/O-1
32 HCTR
33 SEEKSW
34
35
36
37
MPX VCO
38
IF COUNT BUFF
SEEK/STOP Switch
CSB912TF108
39 GND
40
PHASE
COMP
61 AM DET
62
AM ANTD
WIDE AGC
63
FM MUTE
ON ADJ
64 RF AGC
65 2nd MIX IN
66 FM IF BYPASS
VSM
SHIFTER
67
FM IF
IN
68
69 1st IF OUT
70 AM MIX OUT
71 AM SD ADJ
WIDE AGC IN
72 1st IF IN
73 AM RF AGC OUT
74
75
N-AGC IN
MUTE ATT ADJ
76 MIX OUT
77 FE VCC
78
1st IF
Narrow IN
79
AM 1st
MIX IN
80 FM
MIX IN
3.3
µ F
0.022
µ F
0.022
µ F 0.01
µ F 0.47
µ F
1 µ F
0.01
µ F
0.022
µ F
0.015
µ F
6800pF 0.01 µ F 30k Ω 1M Ω
350
Ω 51k Ω
30k Ω
10k Ω
22k Ω
51k Ω
10k Ω
11k Ω
300 Ω
51k Ω
470
Ω
100k
Ω
510 Ω
33 Ω
10k Ω
10k Ω
24k Ω
30k
Ω
12k
Ω
62k Ω 82k
Ω
560
Ω
56k Ω
33k
Ω
33k Ω
1000pF
10k
Ω
50k Ω
5.6k
Ω
47k
Ω
47k
Ω 47k Ω
100k Ω
100k
Ω
51k Ω
5V
10k
Ω 100k
Ω
10k Ω
10pF 300pF
150pF
100pF
30pF
VCC=8V
FM ANT IN
5pF
AGC
HPH
HOLE DET
F.F.19k 90 PHASE
COMP.
VCO
PILOT
DET.
CCB I/F
POWER ON RESET
PHASE DETECTOR CHARGE PUMP
F.F.19k 90
F.F.30k 0
F.F.
PILOT CAN.
UNTVERSAL COUNTER
DATA SHIFT REGISTER LATCH
12Bits PROGRAMMABLE DIVIDER
SWALLOW
COUNTER
1/16,1/17 4Bits
REFERENCE DIVIDER
TRIG
HCC
SNC
VCO STOP OC-C DET AFC CI AMP
LPF
TRIG GATE
+ —
MIX
MIX
ANT D OSC BUFF OSC Q.DET MUTE AMP.
MUTE
DRIVE
DET IF AGC
L.C.
BUFF
OSC
BUFF
AM
1ST
OSC
BUFF
IF LIMIT AMP.
Keyed AGC
MAIN HC SUB
DEC MAT RIX
F.E
REG
FM/AM
SWITCH
AM/FM VREF
CF
SW
W.B AGC
RF AGC
AM SM
AM SD
FM SM
FM SD
IF BUFFER
MRC RF AGC
WB AGC TWEET
+
+ +
+
+ +
+ + +
+ +
+
+
+
+
+
0.015
µ F
0.22 µ F
3.3 µ F
15pF 15pF
0.022 µ F
0.022
µ F
100 µ H
100
µ H
0.022
µ F
0.022
µ F
47 µ F
FC18
100 µ H 1MH
0.022 µ F
1 µ F
0.022
µ F
100
µ F
+ 2.2 µ F
0.47 µ F
1 µ F
10 µ F
0.22
µ F
2200pF
0.1 µ F 0.47
µ F 0.01
µ F
0.22
µ F
1 µ F 1 µ F
0.22
µ F
1 µ F
0.47 µ F
0.01 µ F
0.022 µ F
Pdot C
ADJ
100pF
5V
24pF
24pF
10.25
MHz
PLL VDD=5V
FM BF GND
L-CH CF SW R-CH FMIF AMNC MPX VCC FM/AM VT FMIF AM GND
SEEK AM/FM SD
STOP FM ST IND
SDSTSW
I/O-1
To
micro
controller
MUTE
OFF(RDS)
AM
(STEFEO)
IF OUT
MRC
SENOR
AUTO ADJ
+ 30 Ω
200k Ω
100 Ω
100k
Ω
100k
Ω
220
Ω
30k
Ω
15 Ω 30 Ω
100k Ω
150
Ω
0.022 µ F 5pF
0.022
µ F
0.022
µ F
0.1 µ F
0.022
µ F
100
µ F
1000pF 1000pF
37pF
6pF
1000pF
8pF
1000pF
18pF
62pF
AM ANT IN AM V
CC
49
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
32
31
+ L5P
50 + L5M
51 + L4
52 + L3
+
L2
54 + L1
55 +
+
LVref
56
57
Vref
VDD
58
RVref
59 + R1
+ R2
61 + R3
62 +
R4
63 + R5M
64 + R5P
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
1 µ F
PA
10 µ F
1 µ F
LVref
LVref
10 µ F
47 µ F
+ 10 µ F
LSELO LVRIN LCT LCOM LTIN LF1C1 LF1C2 LF1C3 LF2C3 LVROUT
220pF
68k
Ω
4.7k Ω 0.1 µ F
10 µ F 0.1
µ F 0.1
µ F 10 µ F 10 µ F
LF2C1 LF2C2
0.01
µ F
0.01
µ F
0.001
µ F
0.001
µ F
LF3C3 LTOUT LF3C1 LF3C2
[BASS fo 100Hz] [ M I D fo 1kHz] [TREBLE fo 10kHz]
LFIN
LFOUT
30
29
28
PA
10 µ F
LROUT
LAVSS
TEST
PA
0.033 µ F
RROUT
TIM
NC
18
19
21
20
17
PA
10 µ F
10 µ F
10 µ F
10 µ F
10 µ F RFOUT
RFIN
16 15 14 13
RTOUT RF3C3 RF3C2 RF3C1
12 11 10
RF2C3 RF2C2 RF2C1
0.1 µ F
1 µ F
RVref RVref
RVref
9 8 7
RF1C3 RF1C2 RF1C1
6
RTIN
5
RVROUT
4
RCOM
3
RCT
2
RVRIN
1
RSELO
27
DVSS
26
CL
25
DI
24
CE
47k Ω
23
MUTE
22
RAVSS
CL
DI
CE
RVref
NO SIGNAL
TIMER
ZERO-CROSS DET
ZERO-CROSS DET
CONTROL
CIRCUIT
4.7k Ω 68k Ω
220pF
60
LVref
LVref
53
0.1
µ F
0.1
µ F
0.01
µ F
0.01
µ F
0.001
µ F
0.001
µ F
Micro
controller CCB
INTERFACE
Multiplexer
Multiplexer
- +
- +
- + +
+
+
- +
- +
- +
+ + +
- +
- +
- +
+
+
- +
- + - +
+ +
+
+
- +
-+
-+
LOGIC CIRCUIT
[BASS fo 100Hz] [ M I D fo 1kHz] [TREBLE fo 10kHz]
- +
- +
- +
- +
- +
- +
- +
43 Car Audio 44 Car Audio
The LA17000M is a car audio system tuner IC that integrates both a PLL frequency synthesizer and all AM/FM
functions on a single chip. The LA17000M combines the functions of two ICs, a PLL IC (such as the LC72144)
and an FM tuner IC (such as the LA1781M) on a single chip that provides PLL, AM (upconversion), FM FE, FM IF,
NC, MCP, and MRC functions. The LA17000M achieves increased performance, adjustment-free manufacturing,
and high reliability at low cost in car tuner systems by providing an optimal functional allocation in the IC.
Car Audio Tuner IC with Built-in PLL Circuit Car Audio Tuner IC with Built-in PLL Circuit
■ Built-in PLL
◆ A/D converter (6 bits, 1 channel)
◆ IF counter and I/O ports for simplified interface
design
◆ Supports AM double conversion reception
■ Strengthened noise reduction
◆ Superlative three-signal characteristics
◆ Improved weak and medium-field NC
characteristics
◆ Improved separation characteristics
◆ Built-in anti-birdie filter (analog and digital outputs)
◆ Anti-multipath sensor outputs
(analog and digital outputs)
■ Support for lower costs
◆ AM double conversion (upconversion)
◆ Improved FM IF circuit (automatic wide/narrow
ceramic filter switching under adjacent channel
interference conditions)
◆ IF gain sample-to-sample variations reduced to 1/3
that in previous devices. This simplifies end product
adjustment during manufacture. Furthermore,
a shifter pin is provided for VSM adjustment.
■ Supports end product miniaturization
◆ High-frequency signal lines can be handled within
the tuner pack.
◆ Easily meets FCC requirements
■ Package: QFP80 (14 14 mm)
Micro controller
Block Diagram
Block Diagram
The LC75410E/W is an electronic volume and tone control IC that implements a rich set of audio control
functions with a minimal number of external components. Functions include volume, balance, fader,
bass/midrange/treble, and loudness controls, as well as input selection/switching functions and an input
gain control.
Electronic Volume and Tone Control IC for
Car Audio Systems Electronic Volume and Tone Control IC for
Car Audio Systems
Overview Overview
Functions
Functions
Features
:CCB is SANYO's original bus format.
All bus addresses are managed by
SANYO for this format.
■ On-chip buffer amplifiers reduce the number of external components
■ Internal switches are implemented in a silicon gate CMOS process that minimizes the noise generated when switching.
This results in low noise even when switching in the no-signal state.
■ Zero-cross switching circuits used for low noise even when input signals are present
■ Built-in VDD/2 reference voltage generation circuit
■ All functions are controlled using serial data (CCB)
■ Packages: LC75410E: QIP64E (14 14 mm)
LC75410W: SQFP64 (10 10 mm)
■ Volume control: A total of 161 positions from 0 dB to -79.5 dB in 0.5 dB steps and - ∞ dB.
A balance function can be implemented by controlling the left and right channel volume controls separately.
■ Fader control: The rear or front outputs can be attenuated by one of 16 levels
(A total of 16 settings with attenuations of 0 to -2 dB in 1dB steps, -2 to -20 dB in 2 dB steps, -20 to -30 dB in 10 dB steps,
and -45, -60, and -
∞ dB settings.)
■ Bass/midrange/treble controls: Each band can be controlled in 1 dB steps from 0 dB to ± 6 dB, and in 2 dB steps from
± 8 dB to ± 12 dB
■ Input gain control: The input signal can be amplified by 0 to +18.75 dB in 1.25 dB steps
■ Input switching: One of five input systems (left and right channels) can be selected
(Four of the input systems are single-ended inputs, one uses differential inputs.)
■ Loudness control: The -32 dB position of the 2 dB step volume control ladder resistor can be tapped and a loudness
function implemented with external capacitor and resistor components
❋