Sanyo DC-DA370 service manual IC102 LC78622NE Digital Signal Processor, Function

IC BLOCK DIAGRAM & DESCRIPTION

IC102 LC78622NE (Digital Signal Processor)

No.	Pin Name	I/O	Function
1	DEFI	I	Input terminal for detect signal of defect
2	TAI	I	Input terminal for test.
3	PDO	O	The phase comparison output terminal for
			external VCO control.
4	VVSS	-	Ground terminal for built-in VCO
5	ISET	I	Resistance connection terminal for
			electric current adjustment of PDO output.
6	VVDD	-	Built-in VCO power supply terminal.
7	FR	I	VCO frequency range adjustment.
8	VSS	-	Ground for Digital
9	EFMO	O	EFM signal output terminal for slice level control.
10	EFMIN	I	EFM signal input terminal for slice level control.
11	TEST2	I	TEST pin. Normal time is non connection.
12	CLV+	O	Output terminal for Disc motor control.
13	CLV-	O	Output terminal for Disc motor control.
14	V/P	O	Change of rough servo / phase control
			Rough servo : "H", Phase control : "L"
15	HFL	I	Input terminal of track search signal.
16	TES	I	Input terminal of tracking error signal.
17	TOFF	O	Output terminal of tracking off.
18	TGL	O	Output terminal for change of tracking gain.
19	JP+	O	Output terminal for tracking jump control.
20	JP-	O	Output terminal for tracking jump control.
21	PCK	O	Clock monitor output terminal for EFM data
			playback. (4.3218 MHz)
22	FSEQ	O	Output terminal for detect of SYNC signal.
23	DVDD	-	+5V
24	CONT1	I/O
25	CONT2	I/O	This output can control at serial control from
26	CONT3	I/O	micro processor.
27	CONT4	I/O
28	CONT5	I/O
29	EMPH	O	Output terminal of de-emphasis monitor .
			"H" : de-emphasis
30	C2F	O	Output terminal of C2 flag
31	DOUT	O	Output terminal of digital out

No.	Pin Name	I/O	Function
32	TEST3	I	Test pin.
33	TEST4	I	Test pin.
34	NC	-	Non connection.
35	MUTEL	O	Mute output terminal for L-ch
36	LVDD	-	Power supply for L-ch
37	LCHO	O	Output terminal for L-ch
38	LVSS	-	GND for L-ch
39	RVSS	-	GND for R-ch
40	RCHO	O	Output terminal for R-ch
41	RVDD	-	Power supply for R-ch
42	MUTER	O	Mute output terminal for R-ch
43	XVDD	-	Power supply of crystal oscillation
44	XOUT	O	Connection terminal of crystal oscillation (16.9344MHz)
45	XIN	I	Connection terminal of crystal oscillation (16.9344MHz)
46	XVSS	-	GND of crystal oscillation
47	SBSY	O	Output terminal for synchronizing signal of
			sub-cord block
48	EFLG	O	Output terminal for correction monitor of C1, C2,
			Single and Double
49	PW	O	Output terminal for sub-cord of P, Q, R, S, T, U and W
50	SFSY	O	Output terminal for synchronizing signal of
			sub-cord frame
51	SBCK	I	Input terminal for readout clock of sub-cord
52	FSX	O	Output terminal of Synchronizing signal (7.35kHz)
53	WRQ	O	Output terminal for standby of sub-cord Q output
54	RWC	I	Input terminal of read / write control
55	SQOUT	O	Output terminal of sub-cord Q
56	COIN	I	Input terminal of command from micro processor
57	CQCK	I	Clock input for reading sub-cord from SQOUT
58	RES	I	Reset (turn on : L)
59	TST11	O	Test pin
60	16M	O	16.9344MHz
61	4.2M	O	4.2336MHz
62	TEST5	I	Test pin
63	CS	I	Chip select terminal
64	TEST1	I	Test pin

								TST11			TEST2		TEST4
	EFMO	VVDD	VVSS	PDO ISET FR			PCK	TAI	TEST1			TEST3		TEST5	VDD VSS
	9	6	4	3	5	7	21	2	59	64	11	32	33	62	23	8
DEFI 1	Slice level		VCO Clock Oscillator							2KA~8bit						RAM Address
EFMIN 10	Control			& Clock Control							RAM					Generatorl

FSEQ 22	Syncrnous Detect																								Interpolalation Mute					30 C2F
	EFM Demodulation
																									Billingual
																													Digital Out	31 DOUT
CLV+ 12			CLV											C1 C2 Error Detect &
CLV- 13	Digital Servo													Correct Control Flag											Digital Attenuator
V/P 14
PW 49
SBCK 51	Subcode Dxract																						Quadruple Over Sampling
SBSY 47		QCRC
																									Digital Filter
SFSY 50
CS 63
WRQ 53		∝ COM																							1bit DAC					34 (NC)
SQOUT 55		Inter Fase
CQCK 57
COIN 56	Servo Commander							General Ports									X'tal Root									L.P.F
RWC 54																Timing Generator
	15	16	17	20	19	58	18	24	25	26	27	28	29	48	60	61	46	52	45	44	43	39	41	42	40	37	35	38	36

				RVDD
HFL TES TOFF JP- JP+ RES TGL CONT1 CONT3 CONT5 EMPH EFLG		16M 4.2M FSX XIN XVDD			RCHO	LCHO MUTEL	LVDD
	CONT2 CONT4	XVSS	XOUT	RVSS MUTER		LVSS

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