Sanyo LC78601E Specifications

Ordering number : EN6020

CMOS IC

LC78601E

Compact Disc Player DSP with

Built-in Microcontroller

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.

<Display Block>

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

•On-chip bias voltage generator

<Control Processing Block>

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

•Supports remote controller input.

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.

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

D1898RM (OT) No. 6020-1/11

	LC78601E
Features		Package Dimensions
• Package: 64-pin QFP		unit: mm
• 5-V single-voltage power supply		3159-QFP64E
		[LC78601E]

SANYO: QFP64E(QIP64E)

Equivalent Circuit Block Diagram

	Slice level	VCO clock
		oscillator
	control
		Clock control

Synchronization detection

EFM demodulation

CLV digital servo

Subcode separator QCRC

Servo commander

C1 and C2 error detection and correction

Flag processing

8 × oversampling digital filters

RAM address generator

Interpolation

and muting

Bilingual support circuit

Digital output circuit

Digital attenuator

Crystal oscillator circuit

Timing generator

System control

LCD driver

No. 6020-2/11

LC78601E

Pin Assignment

Top view

Specifications

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

Parameter	Symbol	Conditions	Ratings	Unit
Maximum supply voltage	VDD max		VSS – 0.3 to VSS + 7.0	V
Input voltage	VIN		VSS – 0.3 to VSS + 0.3	V
Output voltage	VOUT		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

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

	Parameter	Symbol	Conditions		Ratings		Unit
				min	typ	max
	Supply voltage	VDD	VDD, XVDD, L/RVDD, VVDD	4.5		5.5	V
			Normal speed playback
		VIH1	DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES	0.7 VDD		VDD	V
	High-level input voltage	VIH2	*KEYI1 to 4	0.8 VDD		VDD	V
		VIH3	EFMIN	0.6 VDD		VDD	V
		VIH4	PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF	0.8 VDD		VDD	V
		VIL1	DEFI, 3 V/*5 V, TMOD, *RES, HFL, TES	0		0.3 VDD	V
	Low-level input voltage	VIL2	*KEYI1 to 4	0		0.5 VDD	V
		VIL3	EFMIN	0		0.4 VDD	V
		VIL4	PUIN, RMTSL1 to 3, REMOTE, CLOSE, DRF	0		0.2 VDD	V
	Input level	VIN1	EFMIN: Slice level control	1.0			Vp-p
		VIN2	XIN: Capacitor coupled input	1.0			Vp-p
	Operating frequency range	fOP	EFMIN			10	MHz
	Crystal oscillator frequency	fX	XIN, XOUT		16.9344		MHz
	Input voltage	VLCD1			0.5 VDD	VDD	V

No. 6020-3/11

LC78601E

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
	Current drain	IDD	VDD, XVDD, L/RVDD, VVDD			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 = VDD			5	µA
			REMOTE, CLOSE, *RES, DRF
		IIH2	LASER, FSTA, EFBAL, SP8	VIN = VDD	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,
		VOH1	FSTA, EFBAL, SP8, FSEQ, PCK,	IOH = –1 mA	0.8 VDD			V
			SLOF, SLED+, SLED–, EFLG, FSX,
	High-level output voltage		*AMUTE
		VOH2	S1 to 6	IOH = –0.02 mA	0.8 VDD			V
		VOH3	COM1 to 3	IOH = – 0.1 mA	0.8 VDD			V
		VOH4	DOUT	IOH = –12 mA	0.9 VDD			V
			EFMO, CLV, TOFF, TGL, JP, FSEQ,
		VOL1	PCK, SLOF, SLED+, SLED–,	IOL = 1 mA			0.2 VDD	V
			*KEYO1 to 2, EFLG, FSX,
			RMTSL2 to 3, *AMUTE
	Low-level output voltage	VOL2	*RANDOM	IOL = 8 mA			0.2 VDD	V
		VOL3	S1 to 6	IOL = 0.02 mA			0.2 VDD	V
		VOL4	COM1 to 3	IOL = 0.1 mA			0.2 VDD	V
		VOL5	DOUT	IOL = 12 mA			0.1 VDD	V
		IOFFH	PDO, CLV, JP, *KEY01 to 2,	VOUT = VDD			5	µA
	Output off leakage current		*RANDOM
		IOFFL	PDO, CLV, JP, *KEY01 to 2,	VOUT = 0 V	–5			µA
			*RANDOM
	Pull-up resistance	RPU	PUIN, *KEYI1 to 4, RMTSL1, CLOSE,			100		kΩ
			*RES
	Pull-down resistance	RPD	LASER, FSTA, EFBAL, SP8			10		kΩ
	Charge pump output current	IPDOH	PDO	RISET = 68 kΩ	64	80	96	µA
		IPDOL	PDO	RISET = 68 kΩ	–96	–80	–64	µA

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

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

No. 6020-4/11