LC78628E datasheet(11/40 Pages) SANYO

Nome de Peças	LC78628E

Descrição Electrónicos	Compact Disc Player DSP with Built-in HDCD Decoder

Download	40 Pages

Scroll/Zoom	100%

Fabricante Electrônico	SANYO [Sanyo Semicon Device]

Página de início	https://www.sanyo-av.com/us/

Logo

11 / 40 page

No. 6329-11/40

LC78628E

Internal Functions

1. HF signal input circuit — Pin 11: EFMIN, pin 10: EFMO, pin 1: DEFI, pin 13: CLV+

When an HF signal is input to the EFMIN pin, an

EFM signal (NRZ) sliced at the optimal level is

acquired. As a measure to handle defects, when the

DEFI pin (pin 1) goes high, the slice level

controller output from the EFMO pin (pin 10) goes

to the high-impedance state, and the slice level is

held. However, this is only valid when the CLV

circuit is in phase control mode, that is, when the

V/P pin (pin 15) is outputting a low level.

This function can be implemented in combination

with the DEF pin from an LA9230/9240 series

product.

*: If the EFMIN and CLV+ lines are run close

together, the error rate may increase due to

spurious radiation. We recommend inserting

either a ground or VDD shield line between these

lines.

2. PLL clock regeneration circuit — Pin 3: PDO, pin 5: ISET, pin 7: FR, pin 21: PCK

The LC78628E includes a built-in VCO circuit,

and a PLL circuit is formed by adding external

resistors and capacitors. The ISET pin sets the

charge pump reference current, PDO sets the VCO

circuit loop filter, and FR sets the VCO frequency

range.

Sample values for reference purposes:

R1 = 68 k

Ω, C1 = 0.1 µF

R2 = 680

Ω, C2 = 0.1 µF

R3 = 1.2 k

Ω

+

–

SLC

SLI

VREF

11

10

EFMIN

EFMO

HF signal

A12803

VDD

R1

C2

R2

R3

C1

5 ISET

EFM(NRZ)

PDO

FR

PCK

VCO

1/N

Charge pump

Frequency

and phase

comparator

3

21

7

A12804

Code

Command

Frequency divisor

RES = low

$AC

VCO

× 2 SET

1

$AD

VCO

× 1 SET

2

$AE

VCO

× 0.5 SET

0.5

q

The divisor used by the divider to create PCK from the VCO can be set using the VCO

× 2, VCO × 1, and VCO × 0.5 SET instructions. Normally, the circuit

operates in the VCO

× 0.5 SET state after a reset.

Nº de peça semelhante - LC78628E

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Sanyo Semicon Device	LC78620E	478Kb / 34P	Compact Disc Player DSP
	LC78621E	418Kb / 34P	Compact Disc Player DSP
	LC78622E	379Kb / 29P	Compact Disc Player DSP
	LC78622NE	325Kb / 31P	Compact Disc Player DSP
	LC78624E	358Kb / 27P	Compact Disc Player DSP

More results

Descrição semelhante - LC78628E

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Sanyo Semicon Device	LC78605E	89Kb / 11P	Compact Disc Player DSP with Built-in Microcontroller
	LC78602NE	177Kb / 11P	Compact Disc Player DSP with Built-in Microcontroller
	LC78601E	146Kb / 11P	Compact Disc Player DSP with Built-in Microcontroller
	LC78622E	379Kb / 29P	Compact Disc Player DSP
	LC78624E	358Kb / 27P	Compact Disc Player DSP
	LC78622NE	325Kb / 31P	Compact Disc Player DSP
	LC78621E	418Kb / 34P	Compact Disc Player DSP
	LC78620E	478Kb / 34P	Compact Disc Player DSP
	LC78625E	440Kb / 35P	Compact Disc Player DSP
	LC78630E	433Kb / 33P	Compact Disk Player DSP

More results

LC78628E Folha de dados(PDF) 11 Page - Sanyo Semicon Device

LC78628E Folha de dados(HTML) 11 Page - Sanyo Semicon Device

Nº de peça semelhante - LC78628E

Descrição semelhante - LC78628E

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Folha de dados Download

Ligação URL