Sony MZ-300 MZ-E300 SECTION DIAGRAMS, Explanation Of Ic Terminals, IC601 LC89642-8B-E, Pin No

MZ-E300

SECTION 5

DIAGRAMS

5-1. EXPLANATION OF IC TERMINALS

• IC601 LC89642-8B-E

(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, ATRAC ENCODER/DECODER, 8MBIT D-RAM, D/A CONVERTER)

Pin No.	Pin name	I/O	Description
1	FR	I	Connected to Bias resistor for VTEC oscillating frequency
2	ISET	I	Connected to Bias resistor for VTEC current charge pump
3	VCVDD	—	Power supply for VTEC
4	PDD	O	VTEC current charge pump output
5	TEST3	I	Input for test
6	TEST2	I	Input for test
7	SLCO	O	Slice level output for HF signal
8	SLCIST	I	Connected to Bias resistor for the slice level adjusting amplifier
9	EFMIN	I	HF signal input
10	RESETB	I	System reset
11	TEST1	I	Input for test
12	HFL	I	Track detection signal input
13	VDD2	—	Power supply
14	VSS	—	Ground
15	VDD1	—	Internal power supply
16	AVSS1	—	Ground for digital servo
17	PEAK	I	PEAK signal input
18	BOTTOM	I	BOTTOM signal input
19	ABCD	I	Main beam quantity signal input
20	TE	I	Tracking error signal input
21	FE	I	Focus error signal input
22	VC	I	Center potential input
23	AVDD1	—	Power supply for digital servo
24	MAD9	O*	Address output to DRAM (NC)
25	DSW1	O*	Disc mode select output
26	MAD8	O*	Address output to DRAM (NC)
27	DSW0	O*	Disc mode select output
28	MAD7	O*	Address output to DRAM (NC)
29	SGC	O*	AGC control signal output
30	MAD6	O*	Address output to DRAM (NC)
31	AOFFSET	O*	ABCD offset control signal output
32	MAD5	O*	Address output to DRAM (NC)
33	FOFFSET	O*	Focus offset control signal output
34	TOFFSET	O*	Tracking offset control signal output
35	MAD4	O*	Address output to DRAM (NC)
36	TBAL	O*	Tracking balance control signal output
37	LDREF	O*	Laser control signal output
38	FBAL	O*	Focus balance control signal output
39	VDD1	—	Internal power supply
40	VSS	—	Ground
41	VDD2	—	Power supply
42	MAD3	O*	Address output to DRAM (NC)
43	SPPWMF	O*	Spindle PWM output
44	SPPWMR	O*	Spindle PWM output
45	SLPWMF	O*	Sled PWM output

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