Sanyo LC78601E Specifications

Ordering number : EN6020

D1898RM (OT) No. 6020-1/11

Overview

The LC78601E CMOS IC implements compact disc player signal processing, servo control, LCD display, key input acquisition, and remote controller processing without requiring control by a separate microcontroller. The basic functions provided include demodulation of the EFM signal from the optical pickup, deinterleaving, error detection and correction, 8× oversampling digital filters, D/A converter (with built-in analog low-pass filter), LCD driver, remote controller processing, key acquisition, and control processing. Thus this IC can provide excellent cost/performance characteristics when implementing a low-end CD player.

Functions

• Implements CD play/pause, disc stop, track selection, fast forward, reverse, repeat mode playback of 1 track or the whole disc, programmed play (setup, play, and clear) of up to 16 tracks, and random repeat play under the control of key input or remote controller input. <Signal-Processing Block>

• Slices an input high-frequency signal at an accurate level, converts the EFM signal, and generates a clock with an average frequency of 4.3218 MHz using a PLL circuit that performs a phase comparison with an internal VCO.

• Accurately generates not only the reference clock but also all necessary internal timings using an external

16.9344MHz crystal.

• Controls the disc motor speed using a frame difference signal created based on the reproduced clock signal and a reference clock.

• Performs detection, protection, and interpolation for the frame synchronizing signal to assure stable data readout.

• Demodulates the EFM signal, converting it to 8-bit symbol data.

• Separates the subcode data from the EFM signal and outputs that data to the internal control processing block.

• After applying a CRC check to the subcode Q signal, outputs that signal to the internal control processing block.

• Buffers the demodulated EFM signal data in internal RAM and compensates for ±4 frames of jitter due to disc speed fluctuations.

• Performs unscrambling and deinterleaving by reordering the demodulated EFM signal data to the stipulated order.

• Performs error detection and correction and flag processing (C1: dual errors, C2: dual errors)

• The C2 flags are set based on the C1 flags and the result of the C2 processing, and the signal is interpolated or previous value hold is applied based on the C2 flags. Dual interpolation is adopted in the interpolation circuit. Previous value hold is applied if two or more consecutive errors are indicated by the C2 flags.

• Performs track jump, focus start, disc motor start/stop, muting on/off, track count, and other operations under control of the internal control processing block.

• Provides digital outputs.

• Generates D/A converter input signals with continuity improved by 8× oversampling digital filters.

• Includes on-chip third-order noise shaper delta-sigma D/A converters with built-in analog low-pass filter.

• Digital deemphasis circuit

• Adopts zero-cross muting.

• On-chip LCD drivers for 2-digit display plus play, program, repeat, and random indicators

• On-chip bias voltage generator

• Key matrix circuit with 4 inputs and 2 outputs for an 8-key matrix

• Supports remote controller input.

LC78601E

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Compact Disc Player DSP with

Built-in Microcontroller

CMOS IC

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

Features

• Package: 64-pin QFP

• 5-V single-voltage power supply

No. 6020-2/11

LC78601E

Equivalent Circuit Block Diagram

Package Dimensions

unit: mm

3159-QFP64E

SANYO: QFP64E(QIP64E)

[LC78601E]

Slice level

control

VCO clock

oscillator

Clock control

Synchronization

detection

EFM demodulation

CLV digital

servo

Subcode

separator QCRC

Servo commander

C1 and C2 error detection

and correction

Flag processing

RAM address

generator

Interpolation

and muting

Bilingual support circuit

8 × oversampling

digital filters

Digital output circuit

Digital

attenuator

Crystal oscillator

circuit

Timing generator

System control

LCD driver

Pin Assignment

No. 6020-3/11

LC78601E

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

max VSS– 0.3 to VSS+ 7.0 V

Input voltage V

VSS– 0.3 to VSS+ 0.3 V

Output voltage V

OUT

VSS– 0.3 to VSS+ 0.3 V Allowable power dissipation Pd max 300 mW Operating temperature Topr –20 to +75 °C Storage temperature Tstg –40 to +125 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V

Parameter Symbol Conditions

Ratings

Unit

min typ max

Supply voltage V

VDD, XVDD, L/RVDD, VV

4.5 5.5 V

Normal speed playback

1 DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES 0.7 V

High-level input voltage

2 *KEYI1 to 4 0.8 V

3 EFMIN 0.6 V

4 PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF 0.8 V

1 DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES 0 0.3 V

Low-level input voltage

2 *KEYI1 to 4 0 0.5 V

3 EFMIN 0 0.4 V

4 PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF 0 0.2 V

Input level

1 EFMIN: Slice level control 1.0 Vp-p

2 XIN: Capacitor coupled input 1.0 Vp-p

Operating frequency range f

EFMIN 10 MHz

Crystal oscillator frequency fX X

, X

OUT

16.9344 MHz

Input voltage V

LCD1

0.5 V

Allowable Operating Ranges at Ta = –20 to +75°C, VDD= 4.5 to 5.5 V, VSS= 0 V

Top view

No. 6020-4/11

LC78601E

Parameter Symbol Applicable pins Conditions

Ratings

Unit

min typ max

Current drain I

VDD, XVDD, L/RVDD, VV

35 55 mA

DEFI, 3 V/*5 V, EFMIN, TMOD, HFL,

High-level input current

IIH1 TES, PUIN, *KEYI1 to 4, RMTSL1 to 3, VIN= V

5 µA

REMOTE, CLOSE, *RES, DRF

IIH2 LASER, FSTA, EFBAL, SP8 VIN= V

250 500 1000 µA

DEFI, 3 V/*5 V, EFMIN, TMOD, HFL,

Low-level input current

IIL1 TES, RMTSL2 to 3, REMOTE, *RES, VIN= 0 V –5 µA

DRF

IIL2 PUIN, *KEYI1 to 4, RMTSL1, CLOSE VIN= 0 V –25 –50 –100 µA

EFMO, CLV, TOFF, TGL, JP, LASER,

FSTA, EFBAL, SP8, FSEQ, PCK,

IOH= –1 mA 0.8 V

SLOF, SLED+, SLED–, EFLG, FSX,

High-level output voltage

*AMUTE

2 S1 to 6 IOH= –0.02 mA 0.8 V

3 COM1 to 3 IOH= – 0.1 mA 0.8 V

4 DOUT IOH= –12 mA 0.9 V

EFMO, CLV, TOFF, TGL, JP, FSEQ,

PCK, SLOF, SLED+, SLED–,

IOL= 1 mA 0.2 V

*KEYO1 to 2, EFLG, FSX, RMTSL2 to 3, *AMUTE

Low-level output voltage VOL2 *RANDOM IOL= 8 mA 0.2 V

3 S1 to 6 IOL= 0.02 mA 0.2 V

4 COM1 to 3 IOL= 0.1 mA 0.2 V

5 DOUT IOL= 12 mA 0.1 V

OFFH

PDO, CLV, JP, *KEY01 to 2,

OUT

= V

5 µA

Output off leakage current

*RANDOM

OFFL

PDO, CLV, JP, *KEY01 to 2,

OUT

= 0 V –5 µA

*RANDOM

Pull-up resistance R

PUIN, *KEYI1 to 4, RMTSL1, CLOSE,

100 kΩ

*RES

Pull-down resistance R

LASER, FSTA, EFBAL, SP8 10 kΩ

Charge pump output current

PDOH

PDO R

ISET

= 68 kΩ 64 80 96 µA

PDOL

PDO R

ISET

= 68 kΩ –96 –80 –64 µA

Electrical Characteristics at Ta = –20 to +75°C, VDD= 4.5 to 5.5 V, VSS= 0 V

Parameter Symbol Applicable pins Conditions

Ratings

Unit

min typ max

Total harmonic distortion THD+N LCHO, RCHO

1 kHz: 0dB data input

0.02 0.035 %

20kHz low-pass filter used (built-in AD725D)

Dynamic range DR LCHO, RCHO

1 kHz: –60dB data input

86 88 dB

20kHz low-pass filter and A filter used (built-in AD725D)

Signal-to-noise ratio S/N LCHO, RCHO

1 kHz: 0dB data input

96 98 dB

20kHz low-pass filter and A filter used (built-in AD725D)

Crosstalk CT LCHO, RCHO

1 kHz: 0dB data input

80 82 dB

20kHz low-pass filter used (built-in AD725D)

1-Bit D/A Converter Analog Characteristics at Ta = 25°C, VDD= L/RVDD= 5 V, VSS= L/RVSS= 0 V

Note: Measure in normal speed playback mode with the Sanyo 1-bit D/A converter block reference circuit.

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