LV25200M Under, LA2655V V Product Product

Bus Control Tuner IC

LV25200M Under

development

Overview

The LV25200M integrates an optimal reception system for varying reception conditions plus AM NC functions that support reception worldwide. It also reduces the number of external components required.

Clear Surround Controlontrol ICIC IncludesIncludes PlusPlus SoundSound AlgorithmAlgorithm

LA2655VV ProductProduct	❋❋ :: UseUse ofof conditionalconditional productsproducts requiresrequires
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Overview

The LA2655V is a sound field recreation IC that is optimal for audio equipment and that includes the Plus Sound algorithm.

Functions

■FM front end

■Multiplex

■PLL

■FM IF

■AM upconversion

■Autoalignment

■Noise canceller

■FM/AM switch

■MRC

❋: CCB is SANYO's original bus format.

All bus addresses are managed by SANYO for this format.

Block Diagram

Features

■Image rejection mixer adopted

■Built-in IF band filter

■Supports reception in all areas worldwide

■Crystal oscillator: 20.5 MHz

PLL

■Supports high-speed locking

■Serial bus control circuit (SANYO CCB bus)

■Increased mixer dynamic range, improved noise filter

■Increased IF amplifier dynamic range, improved noise filter

■Built-in noise canceller

MC, MPX, and MRC

■Built-in MPX VCO (Obviates the need for a ceramic oscillator)

■Package: QFP80 (14 14 mm)

The LA2655V is optimal for use in radio/cassette players, personal computers, TV sets, and other consumer audio products including mini-compo systems.

The Plus Sound algorithm corrects for both delays and attenuations of the high and low frequency signals due to the characteristics of the speakers and creates audio with extreme clarity.

Functions

■Plus Sound algorithm

■Clear Surround signal processing

■Variable clear level effect (using external components)

■Package: SSOP20 (225 mil)

10K

C57

R57

R56

4.7U+

3.3U

C50B

3.3U

R55

C51

0.22∝F

10U

C47

8200p

C46 R43

C43

C42

68K

IN-IF

AGC-RF BYPASS

-W-AMAGC

C56

10K

TESTPLL

OUT-ROS 0.02U Undesire

out-Det

MOD

R47 0.1∝F

0.47∝F

0.22∝F

AGCIF

-PILOTDET

AMCL

TESTPLL

INDEX

IN-NC

OUTDET

VREF

INAFC

MUTE DRIVE

INMRC

R41

C59

C50

10K

3300p

450K

C49

C48

1000p

C44

C41

0.022∝F

C40

C61

rey2.7V

AFC

40 VSM-2

10.7MS3

IF-IN2 61

AM low cut

N amc

R40

FM-IF-IN2

AM IF AMP

det

Mute

Time

MRC-OUT C39

C62

0.022∝F

AMP

CF10.7

MIX

AM/FM C38

FM-IF-IN

0.22U

∝

BPF

VSM

0.022 F

AM RF-AGC

NC in

Gtime

NOISE R37

delay

C58

IF AGC

s-meter

Mute

Ccont

AGC C37

0.47U

NOISE10K

C36

1ST-IF-OUT

MIX

36 SENC R381000p

AM-MI 2

35 CHCC

C35

L_MI

2 OUT

N AGC

R66

10∝F

+ Vref

reg4.9V

LPF

AGC

MPX

2200p

R58

L_AM3

RF AGC

BUFF

C34

C67

4.9V

W AGC

PLL-IN

620

L_AM4

AM-MI

2-IN

AM NC 0.47∝F

HPF

Trig

Gate

0.022∝F

Triger OUT

AM-MI 2 69

anp

FET

32 GND

C69

Phase

19K<90

FM cut

CPH5905

BYPASS

select

R31

P-DET

MPX VCC 19K<0

RF-DAC 70

DAC

0.47∝F

Lodins coil

8bit AD

C35

0.022∝F IF-IN

ANT d

TRIG

C30

0.022∝F

100K

47U

C71

BIAS 71

38K<0

10.7MS3

IN3-1

IN3-3

C29

P-CAN

HCC

1SV234

Pin_D

470

FM1stIF-IN

HCC R29

15K

R73

CF10.7 TEST

IN3-2

IN3-4

SNC

82K

C78

AM-ANT-D 73

Keyed AGC

28 SNC R280.22∝F

N AGC

Sub

C73

0.022∝F

C74

30P

C27

N-AGC

W AGC

decorder

VDD

0.022∝F

L_MIX

MIX-OUT 75

IN1/IN2

bus

MATRIX

R-OUT

C26

32K

C75

OSC BUFFER

∝

R101

orogramable

ohase

reference

L-OUT0.015

R102

R70

MIX-OUT

swallow

C25

330

counter

divider

detector

counter

0.015∝F

C105

2.2k C106

L104

0.025∝F

0 FE-VCC

1/10.1/8div

24 X' TAL GND

2200P

C77

2200P

0.075∝F

R77

0.022∝F

MIX

1/6.1/4

X TAL IN

C23

L102

C102

L103

SVC203

FM-MIX-IN 78

CP1

SD Stereo

18pF

Pin_D

1000P

0.047

∝

FM-MIX

IQ MIX

div

OSC

20.5M

C22

0.47∝F

Vref 3V

C79

Vo1.

18pF

C101

C103

FM-MIX

ANT

RF AGC

X TAL OUT

18P

C104

1000P

IN 80

500K

21 X' TAL V

L101

OSC

12P

C105

0.22∝F

C80

ANT D

RF AGC

GND AM-MIX

IN2

OSC-GND 2p

FM OSC

TEST

sep adj.

GND

DO100K

C107

C109

R103

C11B

C12B

1 F

F0.22∝

C12 C15

100

+C2

0.022∝F

L_OSC

C10AF0.039∝

R11

CPAM

4700p

0.47∝F

p11 up

∝

VCD_OSC

2200P

0.01∝F

100K

R20

R13

30K

2.4K

R12

SD Stereo IND.

Lch

Rch AM-NC RDS-OUT

C9A

VCC

6.8K

TEST

OUT

OUT Gate-OUT

1000p

220pF

GND

TEST

VDD

EEPROM

VCC2 VCC

TUNER EEPROM

❋:This product is subject to change without notice for improvement. When considering the use of this product, first refer to the latest SANYO "Semiconductor News" publication related to this device and finally refer to the latest specifications for the device.

Block Diagram

VCC

Lch-IN

Lch-OUT

2200pF

C11

4.7∝F

C10

C12

C13

∝

+ 1∝F

1 F

4.7∝F

2200pF

82000pF

N.C

VCC

AGND

L-IN

LC1

LV1

LC2

LC3

LV2

L-OUT

Brightness control

(L-ch)

On/off control

Brightness control

(R-ch)

BSW

CONT1

GND

VREF

R-IN

RC1

RV1

RC2

RC3

RV2

R-OUT

+ C

+ 1∝F

4.7∝F

1∝F

2200pF

82000pF

2200pF

L/H

Rch-IN

Rch-OUT

	37 Car Audio	38 Car Audio

Sanyo EP93F manual LV25200M Under, LA2655V V Product Product

LV25200M Under

development

Overview

LA2655VV ProductProduct

ConditionalConditional

Overview

Functions

■MRC

Block Diagram

Features

PLL

Functions

VREF

INAFC

C41

0.022∝F

PLL-IN

HCC R29

R-OUT

X TAL IN

X TAL OUT

21 X' TAL V

C105

0.22∝F

L_OSC

GND

TEST

VDD

Block Diagram

+ 1∝F