CY22381 Cypress Semiconductor, CY22381 Datasheet

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CY22381

Manufacturer Part Number
CY22381
Description
Three-PLL General Purpose FLASH Programmable Clock Generator
Manufacturer
Cypress Semiconductor
Datasheet

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Cypress Semiconductor Corporation
Document #: 38-07012 Rev. *D
Features
Benefits
• Three integrated phase-locked loops
• Ultra-wide divide counters (eight-bit Q, eleven-bit P, and
• Improved linear crystal load capacitors
• Flash programmability
• Field programmability
• Low-jitter, high-accuracy outputs
• Power-management options (Shutdown, OE, Suspend)
• Configurable crystal drive strength
• Frequency select option via external LVTTL Input
• 3.3V operation
• Eight-pin SOIC package
• CyClocks RT™ support
• Generates up to three unique frequencies on three
• Allows for 0 ppm frequency generation and frequency
• Improves frequency accuracy over temperature, age,
Logic Block Diagram
seven-bit post divide)
outputs up to 200 MHz from an external source.
Functional upgrade for current CY2081 family.
conversion under the most demanding applications
process, and initial offset
SHUTDOWN/OE
FS/SUSPEND
XTALOUT
XTALIN
CONFIGURATION
FLASH
OSC.
3901 North First Street
11-BIT P
11-BIT P
11-BIT P
8-BIT Q
8-BIT Q
8-BIT Q
PLL1
PLL3
PLL2
Three-PLL General Purpose FLASH
Programmable Clock Generator
• Non-volatile programming enables easy customi-
• In-house programming of samples and prototype
• Performance suitable for high-end multimedia, commu-
• Supports numerous low-power application schemes
• Adjust crystal drive strength for compatibility with
• External frequency select option for PLL1, CLKA, and
• Industry standard supply voltage
• Industry standard packaging saves on board space
• Easy-to-use software support for design entry
zation, ultra-fast turnaround, performance tweaking,
design timing margin testing, inventory control, lower
part count, and more secure product supply. Can also
be programmed multiple times which reduces
programming errors and provides an easy upgrade
path for existing designs
quantities is available using the CY3672 FTG devel-
opment Kit. Production quantities are available through
Cypress’s value-added distribution partners or by
using third party programmers from BP Microsystems,
HiLo Systems, and others.
nications, industrial, A/D converters, and consumer
applications
and reduces EMI by allowing unused outputs to be
turned off
virtually all crystals
CLKB
Crosspoint
Switch
4 × 3
San Jose
Divider
Divider
Divider
7-BIT
7-BIT
7-BIT
,
CA 95134
Revised October 13, 2004
408-943-2600
CY22381
CLKC
CLKB
CLKA

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CY22381 Summary of contents

Page 1

... Easy-to-use software support for design entry PLL1 11-BIT P 8-BIT Q 4 × 3 PLL2 Crosspoint 11-BIT P Switch 8-BIT Q PLL3 11-BIT P 8-BIT Q • 3901 North First Street • San Jose CY22381 Divider CLKC 7-BIT Divider CLKB 7-BIT Divider CLKA 7-BIT , CA 95134 • 408-943-2600 Revised October 13, 2004 ...

Page 2

... General Purpose Input. Can be Frequency Control, Suspend mode control, Output Enable, or full-chip shutdown. General-Purpose Input The CY22381 features an output control pin (pin 8) that can be programmed to control one of four features. When programmed as a Frequency Select (FS), the input can select between two arbitrarily programmed frequency settings. ...

Page 3

... PLL and output frequencies, and different functional options. Data sheet frequency range limitations are checked and performance tuning is automatically applied. You can download a free copy of CyClocks RT on Cypress’s web site at http://www.cypress.com. CY22381 DD Page ...

Page 4

... Capload at maximum setting [3] Except crystal pins CMOS levels CMOS levels – Three-state outputs 3.3 V Power Supply; 3 outputs @ 50 MHz 3.3 V Power Supply; 3 outputs @ 166 MHz Shut-down active CY22381 Min. Typ. Max. 3.135 3.3 3.465 0 – +70 –40 – +85 – – 8 – 1 – ...

Page 5

... Time for output to enter or leave three-state mode after SHUTDOWN/OE switches Peak-to-peak period jitter, CLK outputs measured PLL Lock Time from Power- CY22381 Min. Typ. Max. – – 200 – – 166 ÷ 45% 50% 55 ÷ ...

Page 6

... CY22381SXI-xxxT 8-SOIC – Tape and Reel Notes: 7. The CY22381SC-xxx and CY22381SI-xxx are factory programmed configurations. Factory programming is available for high-volume design opportunities of 100Ku/year or more in production. For more details, contact your local Cypress FAE or Cypress Sales Representative. Document #: 38-07012 Rev. *D NEW SELECT STABLE ...

Page 7

... PACKAGE WEIGHT 0.07gms 0.244[6.197] 8 SEATING PLANE 0.061[1.549] 0.068[1.727] 0.004[0.102] 0.004[0.102] 0°~8° 0.0098[0.249] CY22381 MAX. ROUND ON SINGLE LEADFRAME RECTANGULAR ON MATRIX LEADFRAME PART # S08.15 STANDARD PKG. SZ08.15 LEAD FREE PKG. 0.010[0.254] X 45° 0.016[0.406] ...

Page 8

... Document History Page Document Title: CY22381 Three-PLL General Purpose Flash Programmable Clock Generator Document Number: 38-07012 REV. ECN NO. Issue Date ** 106737 07/03/01 *A 108514 08/23/01 *B 110053 12/10/01 *C 121863 12/14/02 *D 279431 See ECN Document #: 38-07012 Rev. *D Orig. of Change TLG New data sheet JWK Updated based on characterization results Removed “ ...

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