Sharp XL-3000V service manual IC14V VHiES3883F/-1 Video CD Encoder ES3883F 2/2

XL-3000V

IC14V VHiES3883F/-1: Video CD Encoder (ES3883F) (2/2)

Pin No.	Terminal Name	Input/Output	Function
45	AOR +	Output	Right channel output.
46	AOR -	Output	Right channel output.
47	AOL -	Output	Left channel output.
48	AOL +	Output	Left channel output.
49*	MIC1	Input	Microphone input 1.
50*	MIC2	Input	Microphone input 2.
51	VSSAA	Input	Audio Analog ground.
52	VREF	Input	Internal resistor divider generates Common Mode Reference (CMR) voltage.
			Bypass to analog ground with 0.1 μF.
53	VREFM	Input	DAC and ADC minimum reference. Bypass to VCMR with 10 μF in parallel with 0.1 μF.
54	RSET	Input	Full scale DAC current adjustment.
55	COMP	Input	Compensation pin.
56, 57	VSSAV	Input	Video Analog ground.
58*	CDAC	Output	Modulated chrominance output.
59, 60	VCCAV	Input	Video VCC, 5V.
61*	YDAC	Output	Y luminance data bus for screen video port.
62, 63	VSSAV	Input	Video Analog ground.
64	VDAC	Output	Composite video output.
65	ACAP	Input	Audio CAP.
66	VCC	Input	Voltage supply, 5V.
67*	AUX6	Input/Output	Servo XLAT or Control pin/VFD_DO.
68*	AUX5	Input/Output	Servo Data or Control pin.
69	AUX4	Input/Output	Servo CCW/Close or Control pin.
70	AUX3	Input/Output	Servo CW/Limit or Control pin.
71	XOUT	Output	Crystal output.
72	VSS	Input	Ground.
73	VCC	Input	Voltage supply, 5V.
74	XIN	Input	27 MHz crystal input.
75	VSS	Input	Ground.
76*	NC	—	No connect. Do not connect to these pins.
77	VSS	Input	Ground.
78	VCC	Input	Voltage supply, 5V.
79	PCLK	Input/Output	13.5 MHz pixel clock.
80	2XPCLK	Input/Output	27 MHz (2 times pixel clock).
81	DSC_D7	Input/Output	Data for programming to access internal registers.
82	HSYN_B	Output	Horizontal sync (active low).
83	DSC_D6	Input/Output	Data for programming to access internal registers.
84	VSYN_B	Output	Vertical sync (active low).
85	DSC_D5	Input/Output	Data for programming to access internal registers.
86-89	YUV7-YUV4	Input	YUV data bus for screen video port.
90	VCC	Input	Voltage supply. 5V.
91	VSS	Input	Ground.
92	YUV3	Input	YUV data bus for screen video port.
93	DSC_D4	Input/Output	Data for programming to access internal registers.
94	YUV2	Input	YUV data bus for screen video port.
95	DSC_D3	Input/Output	Data for programming to access internal registers.
96	YUV1	Input	YUV data bus for screen video port.
97	DSC_D2	Input/Output	Data for programming to access internal registers.
98	YUV0	Input	YUV data bus for screen video port.
99	DSC_D1	Input/Output	Data for programming to access internal registers.
100	VSS	Input	Ground.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 58 –