7B991RPFS datasheet(4/17 Pages) MAXWELL

Part #	7B991RPFS

Description	Programmable Skew Clock Buffer (PSCB)

Download	17 Pages

Scroll/Zoom	100%

Manufacturer	MAXWELL [Maxwell Technologies]

Direct Link	http://www.maxwell.com

Logo

4 / 17 page

4

All data sheets are subject to change without notice

Programmable Skew Clock Buffer (PSCB)

7B991

09.23.02 Rev 4

Input HIGH Current (Test, FS, xFn)

I

IH

V

IN = VCC

1, 2, 3

--

200

µ A

Input MID Current (Test, FS, xFn)

I

IMM

V

IN = 2.75

1, 2, 3

-200

200

µ A

Input LOW Current (Test, FS, xFn)

I

ILL

V

IN = GND

1, 2, 3

--

-200

µ A

Output Short Circuit (Test, FS, xFn)

2

I

OS

V

CC = Max., VOUT = GND

(25 °C only)

1

--

-250

mA

Operating Current used by Internal

Circuitry

I

CCQ

V

CCN = VCCQ = Max, all input

selects open

1, 2, 3

--

90

mA

Output Buffer Current per Output

Pair 3

I

CCN

V

CCN = VCCQ = Max,

I

OUT = 0 mA,

Input selects open, fMAX

1, 2, 3

--

14

mA

Power Dissipation per Output Pair 4

P

D

V

CCN = VCCQ = Max,

I

OUT = 0 mA

Input selects open, fMAX

1, 2, 3

--

78

mW

1. These inputs are normally wired to V

CC,GND, or left unconnected (actual threshold voltages vary as a percentage of VCC). Inter-

nal termination resistors hold unconnected inputs at V

CC/2. If these inputs are switched, the function and timing of the outputs

may glitch and the PLL may require an additional t

LOCK time before all datasheet limits are achieved.

2. This device should be tested one output at a time, output shorted for less than one second, less than 10% duty cycle. Room

temperature only.

3. Total output current per output pair can be approximated by the following expression that includes device current plus load cur-

rent:

ICCN = [(4 + 0.11F) + [((835-3F)/Z) + (.0022FC)]N] x 1.1

Where:

f = frequency in MHz

C = capacitive load in pF

Z = line impedance in ohms

N = number of loaded outputs; 0, 1, or 2

FC = F * C

4. Total power dissipation per output pair can be approximated by the following expression that includes device power dissipation

due to the load circuit:

PD = [(22 + 0.61F) + [((1550-2.7F)/Z) + (.0125FC)]N] x 1.1

TABLE 6. 7B991 CAPACITANCE1

1. Guaranteed by design.

PARAMETER

SYMBOL

TEST CONDITIONS

MAX

UNIT

Input Capacitance

C

IN

T

A = 25

°C, f = 1 MHz, V

CC = 5.0V

10

pF

TABLE 5. 7B991 DC ELECTRICAL CHARACTERISTICS

(V

CC = 5V ±10%, TA = -40 TO 85° C, UNLESS OTHERWISE SPECIFIED)

PARAMETER

SYMBOL

TEST CONDITIONS

SUBGROUPS

MIN

MAX

UNIT

Similar Description - 7B991RPFS

Manufacturer	Part #	Datasheet	Description
Cypress Semiconductor	CY7B9911	244Kb / 12P	Programmable Skew Clock Buffer (PSCB)
	CY7B9911V	223Kb / 11P	High-Speed Low-Voltage Programmable Skew Clock Buffer LV-PSCB
	CY7B991.2JC	519Kb / 19P	Programmable Skew Clock Buffer
	CY7B9911	392Kb / 13P	Programmable Skew Clock Buffer
	CY7B991	515Kb / 19P	Programmable Skew Clock Buffer
	CY7B991	520Kb / 21P	Programmable Skew Clock Buffer
	CY7B991	288Kb / 15P	Programmable Skew Clock Buffer
	CY7B9911	491Kb / 13P	Programmable Skew Clock Buffer
Exar Corporation	XRK4993	268Kb / 13P	3.3V PROGRAMMABLE SKEW CLOCK BUFFER
Cypress Semiconductor	CY7C9915	309Kb / 14P	3.3V Programmable Skew Clock Buffer

More results

7B991RPFS Datasheet(PDF) 4 Page - Maxwell Technologies

7B991RPFS Datasheet(HTML) 4 Page - Maxwell Technologies

Similar Description - 7B991RPFS

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Datasheet Download

Link URL