Sanyo EP93F manual LC75410E/W0E/W, LA17000M

Car Audio Tuner IC with Built-in PLL Circuit

LA17000M

Overview

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.

Functions

■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)

Block Diagram

■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)

0.022∝F

AM

(STEFEO)

33kΩ

IF OUT

MUTE

0.01∝F

SEP

OFF(RDS)

0.022∝F

10kΩ

+

ADJ

+∝F

+

+

2200pF

+

30kΩ

0.22∝F

∝AFC10F

560Ω

Ω

+

F∝

2.2∝F

PILOT∝1F

24kΩ

100∝F

KEYEDΩ12k

QD

QD

MUTE∝0.47F FM

∝F

33kΩ 56kΩ

82k

10kΩ

50k1000pF Ω

1

62kΩ

MRC

1∝F

AM/FM0.22

micro

IF

AM

C.

FM

F 0.1 ∝

1

DET

+

0.47∝F

+

+

OUT

+

To

AGC

DET

LC

HCC

VCC

AGC

SD

VREF 10kΩ

IN

IN

DRIVE S-METER

OUT

NC

HCC

SNC

OUT

S-METER

PHASE

controller

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

5.6kΩ

COMP

AM DET 61

40

1∝F

0.22∝F

+

+

33Ω			0.022∝F			AM ANTD
						WIDE AGC
0.022∝F	470Ω		1MH				FM MUTE
				100∝H			ON ADJ
						11kΩ
100∝H	FC18					+	RF AGC
					VSM
100∝H 0.022∝F			+			3.3∝F
	100kΩ	47∝F	15pF	15pF	SHIFTER	2nd MIX IN
					51kΩ
						FM IF BYPASS
			510Ω		0.022∝F	FM IF	300Ω
		0.022∝F				IN

62	ANT	OSC	OSC		Q.DET	MUTE					39
	D	BUFF				AMP.	HCC	F.F.19k	PHASE
								90	COMP.
63					HOLE	MUTE	SNC	F.F.19k			38
					DET
						DRIVE		90	VCO
64											37
							VCO
					OC-C	AFC
							STOP
					DET	CI AMP
65									PILOT	TRIG	36
									DET.
66						IF LIMIT					35
						AMP.		F.F.30k	PILOT
67				BUFF				0	CAN.		34
					AM SM	FM SM
				IF
68			DET		AM SD	FM SD		F.F.	UNTVERSAL		33
				AGC
									COUNTER

GND

IF COUNT BUFF

SEEK/STOP Switch

CSB912TF108

MPX VCO

100kΩ

Pdot C

∝ADJ

0.01F

100kΩ	5V
0.47∝F	47kΩ
SEEKSW		47kΩ
	47kΩ

MRC SENOR AUTO ADJ

Electronic Volumeume andand ToneTone ControlControl ICIC forfor Car Audio Systemstems

LC75410E/W0E/W

Overview

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.

Functions

■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

Features

■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)

❋ :CCB is SANYO's original bus format.

All bus addresses are managed by

Block Diagram

SANYO for this format.

4.7kΩ

0.1∝F

[BASS fo

100Hz]

[ M I D

fo

1kHz]

[TREBLE fo

10kHz]

220pF

68kΩ

0.001∝F

10∝F

10∝F

0.1∝F

0.01∝F

0.1∝F

1∝F

+

+

+

+

LSELO

LVROUT

LTOUT

10∝F

LVRIN

LCT

LCOM

LTIN

LF1C1

LF1C2

LF1C3 0.01∝F

LF2C1

LF2C2

LF2C3 001∝F0.

LF3C1

LF3C2

LF3C3

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

1∝F

L5P

LFIN

+

49

-

32

10∝F

1∝F +

L5M

+

+

LFOUT

LVref

31

+

PA

50

-

1∝F

L4

+

LROUT

-

-

-

30

+

PA

+

-+

+

-

51

+

+

+

10∝F

1∝F

L3

-

LVref

LAVSS

+

+

52

+

29

-

1∝F

L2

LVref

-

TEST

+

53

28

∝F

0.022

1000pF

			1st IF OUT
			AM MIX OUT
				AM SD ADJ
			100kΩ	WIDE AGC IN
				1st IF IN
				AM RF AGC OUT
			150Ω	62pF
				N-AGC IN
				MUTE ATT ADJ
		30Ω	15Ω
		0.022∝F		MIX OUT
				FE VCC
				1st IF
				Narrow IN
+	100∝F		8pF	AM 1st
		30Ω		MIX IN
		1000pF	18pF	0.022∝F
	100kΩ			5pF
				FM

69			L.C.								32
					IF BUFFER				DATA SHIFT REGISTER
70	MIX								LATCH		31
						MRC
		RF AGC
				TWEET					12Bits
71		WB AGC									30
									PROGRAMMABLE
									DIVIDER
72	CF									CCB	29
									SWALLOW
	SW		AM/FM
										I/F
			VREF						COUNTER
73											28
					HPH	LPF			1/16,1/17 4Bits
74		W.B AGC							REFERENCE		27
		RF AGC
			Keyed						DIVIDER
75			AGC	F.E	FM/AM						26
				REG	SWITCH
						— +
76	MIX										25
		BUFF
										POWER
77						MAIN					24
			BUFF							ON
						HC	SUB	MAT
										RESET
							DEC	RIX
78			AM								23
			1ST
79			OSC								22
				AGC	TRIG GATE					PHASE
	ANT									DETECTOR
80		OSC								CHARGE	21
	D									PUMP

HCTR

100pF

I/O-1 51kΩ

DO

CL

DI

CE

X' OUT 24pF

10.25 MHz

X' IN24pF 51kΩ

I/O-2

XBUFF

PDS

PLL

VSS

I/O-1

Micro controller

1∝F

L1

LVref

27

DVSS

+

54

10∝F

LVref

Multiplexer

ZERO-CROSS DET

26

CL

CL

+

55

+

CCB

DI

Micro

-

25

DI

VDD

56

CONTROL

LOGIC CIRCUIT

INTERFACE

controller

+

CE

47∝F

Vref

CIRCUIT

24

CE

+

57

-

10∝F

RVref

23

MUTE

+

58

Multiplexer

ZERO-CROSS DET

1∝F

R1

47kΩ

22

RAVSS

+

RVref

59

1∝F

+

R2

NO SIGNAL

21

NC

60

TIMER

RVref

1∝F

R3

-

20

TIM

+

61

+

-

0.033∝F

RVref

+

RROUT

1∝F

R4

+

-+

-

-

19

+

+

+

+

PA

62

+

+

-

-

-

RVref

RFOUT

10∝F

1∝F

R5M

-

+

CC	IN
	AM ANT
AM V

FM BF GND

6pF	1000pF
		37pF
		30kΩ

FM ANT IN

Ω		MIX IN
100k	220Ω	1000pF
		200kΩ
0.1∝F		100Ω
		0.022∝F

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

10kΩ

∝F

FM

FM RF

FE

FM

AM/FM

AM

NC

NC

AM

Gore

MPX

SD

PLL IN

PD1

0.01

5V

ANTD

AGC

GND

OSC

10pF 0.022∝F

SW

0.022∝F

OSC

Sens

AGC

+

OSC

OUT

Pdot IN

0.015∝F

0.015∝F

ST-IND

100pF

10kΩ

Ω100kSEEK

AM/FM SD

3.3∝F

5pF

30kΩ

300pF

0.01∝F 1MΩ

150pF

350Ω

GND

F 0.47 ∝

10kΩ

+

30kΩ

6800pF

0.01∝F

0.22∝F

+∝1F

10kΩ

22kΩ

30pF

51kΩ

NC MPX

STOP

FM ST IND

SDSTSW

∝F

VCC=8V

CF SW

L-CH

R-CH

0.022

PLL VDD=5V

FMIF AMNC FM/AM

FMIF AM

MPX VCC

VT

GND

	+	63	+	18		PA
						10∝F
1∝F	R5P	+			RFIN
	+	-		17
		64

1

RSELO

2

RVRIN

3

RCT

4

RCOM

5

RVROUT

6

RTIN

7

RF1C1

8

RF1C2

9

RF1C3

10

RF2C1

11

RF2C2

12

RF2C3

13

RF3C1

14

RF3C2

15

RF3C3

16

RTOUT

+

10∝F

1∝F

+

+

+

10∝F

0.1∝F

0.1∝F 0.01∝F

.010 ∝F 0010. ∝F

0.001∝F

220pF

10∝F

68kΩ

4.7kΩ

[BASS fo

100Hz]

[ M I D

fo

1kHz]

[TREBLE fo

10kHz]

0.1∝F

43 Car Audio 44 Car Audio