CY2308 Cypress Semiconductor, CY2308 Datasheet

CY2308

Manufacturer Part Number

CY2308

Description

3.3V Zero Delay Buffer

Manufacturer

Cypress Semiconductor

Datasheet

1.CY2308.pdf (14 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY23085XC-1

Manufacturer:

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

CY2308AZC-1H

Manufacturer:

CYPRESS/赛普拉斯

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY2308AZC-2

Manufacturer:

Quantity:

1 869

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY2308AZXC-20

Manufacturer:

Cypress

Quantity:

428

Company:

Meier Automation Equipment Co., Limited

Part Number:

CY2308S-2

Manufacturer:

CYPRESS/赛普拉斯

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY2308S1-1

Manufacturer:

Quantity:

313

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY2308SC-1

Manufacturer:

ROHM

Quantity:

203

Company:

BOSTOCK HK LIMITED

Part Number:

CY2308SC-1

Manufacturer:

Quantity:

1 000

Company:

BOSTOCK HK LIMITED

Part Number:

CY2308SC-1

Manufacturer:

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

CY2308SC-1

Manufacturer:

CYPRESS/赛普拉斯

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

CY2308SC-1H

Manufacturer:

CYPRESS/赛普拉斯

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

CY2308SC-1HT

Manufacturer:

CYPRESS/赛普拉斯

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

CY2308SC-2

Manufacturer:

OKI

Quantity:

119

Company:

BOSTOCK HK LIMITED

Part Number:

CY2308SC-2

Manufacturer:

Quantity:

1 000

Current page: 1 of 14
Download datasheet (204Kb)

Cypress Semiconductor Corporation

Document #: 38-07146 Rev. *C

Features

Functional Description

The CY2308 is a 3.3V Zero Delay Buffer designed to distribute

high-speed clocks in PC, workstation, datacom, telecom, and

other high-performance applications.

The part has an on-chip PLL which locks to an input clock

presented on the REF pin. The PLL feedback is required to be

driven into the FBK pin, and can be obtained from one of the

outputs. The input-to-output skew is guaranteed to be less

than 350 ps, and output-to-output skew is guaranteed to be

less than 200 ps.

REF

Block Diagram

• Zero input-output propagation delay, adjustable by

• Multiple configurations, see “Available CY2308

• Multiple low-skew outputs

• 10-MHz to 133-MHz operating range

• Low jitter, less than 200 ps cycle-cycle (–1, –1H, –4, –5H)

• Space-saving 16-pin 150-mil SOIC package or 16-pin

• 3.3V operation

• Industrial Temperature available

capacitive load on FBK input

Configurations” table

— Output-output skew less than 200 ps

— Device-device skew less than 700 ps

— Two banks of four outputs, three-stateable by two

TSSOP

Extra Divider (–5H)

select inputs

Extra Divider (–3, –4)

Extra Divider (–2, –3)

Select Input

Decoding

PLL

MUX

•

3901 North First Street

FBK

CLKA1

CLKA2

CLKA3

CLKA4

CLKB1

CLKB2

CLKB3

CLKB4

The CY2308 has two banks of four outputs each, which can

be controlled by the Select inputs as shown in the table “Select

Input Decoding.” If all output clocks are not required, Bank B

can be three-stated. The select inputs also allow the input

clock to be directly applied to the output for chip and system

testing purposes.

The CY2308 PLL enters a power-down state when there are

no rising edges on the REF input. In this mode, all outputs are

three-stated and the PLL is turned off, resulting in less than

50 µA of current draw. The PLL shuts down in two additional

cases as shown in the “Select Input Decoding” table.

Multiple CY2308 devices can accept the same input clock and

distribute it in a system. In this case, the skew between the

outputs of two devices is guaranteed to be less than 700 ps.

The CY2308 is available in five different configurations, as

shown in the “Available CY2308 Configurations” table on page

2. The CY2308–1 is the base part, where the output

frequencies equal the reference if there is no counter in the

feedback path. The CY2308–1H is the high-drive version of

the –1, and rise and fall times on this device are much faster.

The CY2308–2 allows the user to obtain 2X and 1X

frequencies on each output bank. The exact configuration and

output frequencies depends on which output drives the

feedback pin. The CY2308–3 allows the user to obtain 4X and

2X frequencies on the outputs.

The CY2308–4 enables the user to obtain 2X clocks on all

outputs. Thus, the part is extremely versatile, and can be used

in a variety of applications.

The CY2308–5H is a high-drive version with REF/2 on both

banks.

•

San Jose

3.3V Zero Delay Buffer

CLKA1

CLKA2

CLKB1

CLKB2

GND

•

REF

Pin Configuration

CA 95134

Top View

SOIC

Revised June 16, 2004

•

408-943-2600

FBK

CLKA4

CLKA3

GND

CLKB4

CLKB3

CY2308

Related parts for CY2308

Related keywords

CY2308 datasheet
CY2308 data sheet
CY2308 pdf datasheet
CY2308 component
CY2308 part
CY2308 distributor
CY2308 RoHS
CY2308 datasheet download