dallas semiconductor DS1000 service manual

DS1000

DS1000

5-Tap Silicon Delay Line

www.dalsemi.com

FEATURES

All-silicon time delay

5 taps equally spaced

Delays are stable and precise

Both leading and trailing edge accuracy

Delay tolerance ± 5% or ± 2 ns, whichever is greater

Low-power CMOS

TTL/CMOS-compatible

Vapor phase, IR and wave solderable

Custom delays available

Fast turn prototypes

Extended temperature range available (DS1000-IND)

PIN ASSIGNMENT

IN			1	14				VCC
										1		8		VCC
								IN
NC			2	13				NC		2		7		TAP 1
								TAP 2
NC			3	12				TAP 1		3
								TAP 4				6		TAP 3
TAP 2			4	11				NC		4		5
								GND						TAP 5
NC			5	10				TAP 3

TAP 4			6		9			NC	DS1000M 8-Pin DIP (300-mil)
									See Mech. Drawings Section
GND				7	8			TAP 5
DS1000							(300-mil)
				14-Pin DIP					IN			1	8		VCC
See Mech. Drawings Section									TAP 2			2	7		TAP 1
									TAP 4			3	6		TAP 3
									GND			4	5		TAP 5

DS1000Z 8-Pin SOIC (150-mil)

See Mech. Drawings Section

PIN DESCRIPTION

TAP 1-TAP 5 - TAP Output Number

VCC	- +5 Volts
GND	- Ground
NC	- No Connection
IN	- Input

DESCRIPTION

The DS1000 series delay lines have five equally spaced taps providing delays from 4 ns to 500 ns. These devices are offered in a standard 14-pin DIP that is pin-compatible with hybrid delay lines. Alternatively, 8-pin DIPs and surface mount packages are available to save PC board area. Low cost and superior reliability over hybrid technology is achieved by the combination of a 100% silicon delay line and industry standard DIP and SOIC packaging. In order to maintain complete pin compatibility, DIP packages are available with hybrid lead configurations. The DS1000 series delay lines provide a nominal accuracy of ± 5% or ± 2 ns, whichever is greater. The DS1000 5-Tap Silicon Delay Line reproduces the input logic state at the output after a fixed delay as specified by the extension of the part number after the dash. The DS1000 is designed to reproduce both leading and trailing edges with equal precision. Each tap is capable of driving up to ten 74LS loads. Dallas Semiconductor can customize standard products to meet special needs. For special requests and rapid delivery, call 972-371-4348.

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111799

DS1000

LOGIC DIAGRAM Figure 1

																																					DS1000
PART NUMBER DELAY TABLE (all values in ns) Table 1
PART #			TAP 1									TAP 2										TAP 3									TAP 4								TAP 5
			TOLERANCE									TOLERANCE										TOLERANCE									TOLERANCE								TOLERANCE
DS1000-	Nom								Nom									Nom									Nom										Nom
			Init		Temp							Init		Temp								Init		Temp							Init		Temp						Init		Temp
-20	4		2		1				8			2	1					12				2	1				16				2		1				20	2			1
-25	5		2		1				10			2	1					15				2	1				20				2		1				25	2			1
-30	6		2		1				12			2	1					18				2	1				24				2		1				30	2			1
-35	7		2		1				14			2	1					21				2	1				28				2		1				35	2			1.1
-40	8		2		1				16			2	1					24				2	1				32				2		1				40	2			1.2
-45	9		2		1				18			2	1					27				2	1				36				2		1.1				45	2.3			1.4
-50	10		2		1				20			2	1					30				2	1				40				2		1.2				50	2.5			1.5
-60	12		2		1				24			2	1					36				2	1.1				48				2.4		1.5				60	3			1.8
-75	15		2		1				30			2	1					45				2.3	1.4				60				3		1.8				75	3.8			2.3
-100	20		2		1				40			2	1.2					60				3	1.8				80				4		2.4				100	5			3
-125	25		2		1				50			2.5	1.5					75				3.8	2.3				100				5		3				125	6.3			3.8
-150	30		2		1				60			3	1.8					90				4.5	2.7				120				6		3.6				150	7.5			4.5
-175	35		2		1.1				70			3.5	2.1					105				5.3	3.2				140				7		4.2				175	8.8			5.3
-200	40		2		1.2				80			4	2.4					120				6	3.6				160				8		4.8				200	10			6
-250	50		2.5		1.5				100			5	3					150				7.5	4.5				200				10		6				250	12.5			7.5
-500	100		5		3				200			10	6					300				15	9				400				20		12				500	25			15
DC ELECTRICAL CHARACTERISTICS																									(0°C to 70°C; VCC = 5.0V ± 5%)
PARAMETER							SYM					TEST										MIN			TYP					MAX					UNITS				NOTES
												CONDITION
Supply Voltage							VCC															4.75		5.00						5.25							V			6
High Level Input							VIH															2.2							VCC + 0.5								V			6
Voltage
Low Level Input							VIL															-0.5								0.8							V			6
Voltage
Input Leakage							II					0.0V ≤		VI ≤ VCC								-1.0								1.0						uA
Current
Active Current							ICC					VCC=Max;												35						75						mA				7, 9
												Period=Min.
High Level Output							IOH					VCC=Min.																		-1						mA
Current												VOH=4
Low Level Output							IOL					VCC=Min.										12														mA
Current												VOL=0.5
AC ELECTRICAL CHARACTERISTICS																											(TA = 25°C; VCC = 5V ± 5%)
PARAMETER									SYMBOL									MIN							TYP						MAX				UNITS				NOTES
Input Pulse Width											tWI			40% of Tap 5 tPLH																						ns				8
Input to Tap Delay										tPLH															Table 1											ns		1, 2, 3, 4,
(leading edge)																																						5, 10
Input to Tap Delay										tPHL															Table 1											ns		1, 2, 3, 4,
(trailing edge)																																						5, 10
Power-up Time											tPU																			100						ms
Input Period									Period									4 (tWI)																		ns				8

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