Sanyo LC7441NE Specifications

Ordering number:ENN*3941B

CMOS IC

LC7441N, 7441NE

Picture-in-picture Controller for TVs and VCRs

Preliminary

Overview

The LC7441N, 7441NE are picture-in picture (PIP) system controller ICs for use in NTSC, PAL or multi-system (both NTSC and PAL) TVs and VCRs. The LC7441 PIP system configuration requires discrete LC7480 A/D converter and memory ICs.

The LC7441 system controller IC provides nested-picture main-screen/sub-screen video signal control. Single or multiple (2) sub-screens occupying 11.11% (one-third height, one-third width) of the main-screen can be constructed and controlled. Features include still/active display, white/color frame, fixed/variable (screen) positioning, and wipe function for gradual sub-screen display and erasure. Sub-screen horizontal resolution is achieved by 248 6-bit, 64-level samples.

The LC7441 construction includes A/D interface, vertical(VERT) filter, memory controller, odd-field decision circuits, read/write PLLs and D/A converters.

The LC7441 operates from a 5 V supply and is available in 64-pin DIPs and 64-pin QIPs.

Features

•NTSC, PAL and multi-system compatibility.

•TV and VCR signals.

•Forms component-based PIP controller system.

•One or two (nested) sub-screens occupying 11.11% of main-screen.

•Still and active video display control.

•White and colored screen frames.

•Fixed and variable screen positioning.

•Gradual sub-screen display and erasure (wipe) function.

•A/D interface, vertical (VERT) filter, memory controller.

•Three D/A converters.

•5 V supply.

•64-pin DIP and 64-pin QIP.

Package Dimensions

unit:mm
3071-DIP64S
					[LC7441N]
64						33
								19.05	16.8
									0.25
1						32
			57.2
								4.0	5.0max
									3.2
			0.95		0.48	1.78	1.01	0.51min
							SANYO : DIP64S
unit:mm
3159-QIP64E
				[LC7441NE]
					17.2
					14.0	1.6
			1.0	0.8	0.35	1.0	0.15
					33
	1.6	1.0	48
						32
			49
17.2	14.0
		0.8
						17
		1.0	64			3.0max
			1		16			0.1
								2.7
					15.6	0.8
							SANYO : QIP64E

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 Company

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

O3101TN (KT)/51595TH(ID)/4212JN No.3941–1/20

LC7441N, 7441NE

Pin Assignments

Top view

No.3941–2/20

LC7441N, 7441NE

Block Diagram

No.3941–3/20

LC7441N, 7441NE

PIP System Diagram

Pin Functions

											Function
QIP
1											TV/VCR select, CMOS input
2											NTSC/PAL select, CMOS input
3	11
					DT
4	12
				WE
5	13										Dual-port memory control outputs
			RAS
6	14
				CAS
7	15			SC

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LC7441N, 7441NE

Continued from preceding page.

	Number		Name			Equivalent circuit		Function
QIP		DIP
8		16	SODI3
9		17	SODI2				4-bit, dual-port memory serial output data, TTL
10		18	SODI1				inputs
11		19	SODI0
12		20	WDO3
13		21	WDO2				4-bit, dual-port memory input data output lines
14		22	WDO1
15		23	WDO0
16		24		A7
17		25		A6
18		26		A5
19		27		A4			8-bit, dual-port memory address output lines
20		28		A3			The msb is A7, and the lsb, A0
21		29		A2
22		30		A1
23		31		A0
24		32	DVDD				5 V digital supply
25		33	DVSS				Digital ground
26		34		AD5
27		35		AD4
28		36		AD3			6-bit, sampled digital data TTL inputs
29		37		AD2			The msb is AD5, and the lsb, AD0
30		38		AD1
31		39		AD0
32		40	YSW				A/D interface Y-select output
33		41	RSW				A/D interface R –	Y select output
34		42	BSW				A/D interface B –	Y select output
35		43	ADCLK				Sampling-clock output
36		44	CLAMPAD				A/D conversion clamp pulse output
37		45		KH			Sub-screen horizontal sync input
38		46		KV			Sub-screen vertical sync, Schmitt-trigger input
39		47		OH			Main-screen horizontal sync input
40		48		OV			Main-screen vertical sync, Schmitt-trigger input
41		49	PLLOH				Read-PLL horizontal sync signal select, CMOS input
42		50		SBY			Active-LOW standby mode set, CMOS input
43		51		WK			Sub-screen frame ON/OFF select, CMOS input
44		52	KDIS				Sub-screen display ON/OFF select, CMOS input

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LC7441N, 7441NE

Continued from preceding page.

	Number			Name				Equivalent circuit	Function
QIP		DIP
									Serial data enable and still picture select, CMOS
45		53		SDE/STL
									input
46		54		SER/PIN					Serial data and pin data select, CMOS input
47		55		SD/FHP					Serial data and sub-screen horizontal position
									select, CMOS input
48		56	SCK/FVP						Serial data clock and sub-screen vertical position
									select, CMOS input
49		57		WAKU					Frame output
50		58		KOUT					Main-screen/sub-screen switch, blanking signal
									output
51		59							Active-LOW reset, CMOS input
					RES
52		60	CLAMPDA						D/A converter clamp-pulse output
53		61		AVDD					5 V analog supply
54		62		AVSS					Analog ground
55		63		BAOUT					B – Y D/A converter output
56		64		YAOUT					Y D/A converter output
57		1		RAOUT					R – Y D/A converter output
58		2			NC				No connection
59		3		VREF					D/A converters reference voltage input
60		4		BIAS					D/A converters bias capacitor connection
61		5		KLPFO					Sub-screen horizontal sync PLL charge-pump,
									tristate output
62		6		KLPFI					Sub-screen horizontal sync PLL VCO clock input
63		7		OLPFI					Sub-screen horizontal sync PLL VCO clock input
64		8		OLPFO					Main-screen horizontal sync PLL charge-pump,
									tristate output

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