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參數(shù)資料
| 型號(hào)： | CY22381SC |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | MS (MIL-C-5015)/97 SERIES 3108B SPLIT SHELL ANGLE PLUGS, RIGHT ANGLE BODY STYLE, SOLDER TERMINATION, 16S SHELL SIZE, 16S-1 INSERT ARRANGEMENT, PLUG GENDER, 7 CONTACTS |
| 中文描述： | 三鎖相環(huán)通用閃存可編程時(shí)鐘發(fā)生器 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 143K |
| 代理商： | CY22381SC |
CY22381
Document #: 38-07012 Rev. *D
Page 2 of 8
Pin Configuration
Operation
The CY22381 is an upgrade to the existing CY2081. The new
device has a wider frequency range, greater flexibility,
improved performance, and incorporates many features that
reduce PLL sensitivity to external system issues.
The device has three PLLs that allow each output to operate
at an independent frequencies. These three PLLs are
completely programmable.
Configurable PLLs
PLL1 generates a frequency that is equal to the reference
divided by an eight-bit divider (Q) and multiplied by an 11-bit
divider in the PLL feedback loop (P). The output of PLL1 is sent
to the crosspoint switch. The frequency of PLL1 can optionally
be changed by using the external CMOS general purpose
input. See the following section on “General-Purpose Input” for
more detail.
PLL2 generates a frequency that is equal to the reference
divided by an eight-bit divider (Q) and multiplied by an 11-bit
divider in the PLL feedback loop (P). The output of PLL2 is sent
to the crosspoint switch.
PLL3 generates a frequency that is equal to the reference
divided by an eight-bit divider (Q) and multiplied by an 11-bit
divider in the PLL feedback loop (P). The output of PLL3 is sent
to the cross-point switch.
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.
The Frequency Select can change the following; the frequency
of PLL1, the output divider of CLKB, and the output divider of
CLKA. Any divider change as a result of switching the FS input
is guaranteed to be glitch free.
The general-purpose input can simultaneously control the
Suspend feature, turning off a set of PLLs and outputs deter-
mined during programming.
When programmed as an Output Enable (OE) the input forces
all outputs to be placed in a three-state condition when LOW.
When programmed as a Shutdown, the input forces a full chip
shutdown mode when LOW.
Crystal Input
The input crystal oscillator is an important feature of this device
because of its flexibility and performance features.
The oscillator inverter has programmable drive strength. This
allows for maximum compatibility with crystals from various
manufacturers, processes, performances, and qualities.
The input load capacitors are placed on-die to reduce external
component cost. These capacitors are true parallel-plate
capacitors for ultra-linear performance. These were chosen to
reduce the frequency shift that occurs when non-linear load
Selector Guide
Part Number
CY22381FC
Outputs
3
Input Frequency Range
8 MHz – 30 MHz (external crystal)
1 MHz – 166 MHz (reference clock)
8 MHz – 30 MHz (external crystal)
1 MHz – 150 MHz (reference clock)
Output Frequency Range
Up to 200 MHz
Specifics
Commercial Temperature
CY22381FI
3
Up to 166 MHz
Industrial Temperature
Pin Summary
Name
CLKC
GND
XTALIN
XTALOUT
CLKB
CLKA
V
DD
FS/SUSPEND/
OE/SHUTDOWN
Pin Number
Description
Configurable clock output C
Ground
Reference crystal input or external reference clock input
Reference crystal feedback (float if XTALIN is driven by external reference clock)
Configurable clock output B
Configurable clock output A
Power supply
General Purpose Input. Can be Frequency Control, Suspend mode control, Output
Enable, or full-chip shutdown.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
CLKC
GND
XTALIN
XTALOUT
FS/
SUSPEND
/OE/
SHUTDOWN
V
CLKA
CLKB
8-pin SOIC
CY22381
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CY22381SC-CKN | Circular Connector; MIL SPEC:MIL-C-5015 A/B/C; Body Material:Aluminum Alloy; Series:97-3108B; No. of Contacts:7; Connector Shell Size:16S; Connecting Termination:Solder; Circular Shell Style:Right Angle Plug RoHS Compliant: No |
| CY22381SC-CKNT | Circular Connector; MIL SPEC:MIL-C-5015 A/B/C; Body Material:Aluminum Alloy; Series:97-3108; No. of Contacts:7; Connector Shell Size:16S; Connecting Termination:Solder; Circular Shell Style:Right Angle Plug; Body Style:Right Angle RoHS Compliant: No |
| CY22381SC-JWK | Three-PLL General Purpose FLASH Programmable Clock Generator |
| CY22381SC-JWKT | Three-PLL General Purpose FLASH Programmable Clock Generator |
| CY22381SXC-RBI | AB 10C 10#16 PIN PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY22381SC-128 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cypress Semiconductor 功能描述: |
| CY22381SC-132 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY22381SC-153 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY22381SC-153T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY22381SC-154 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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