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參數(shù)資料
| 型號： | CY2037BWAF |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | High - Accuracy EPROM Programmable PLL Die for Crystal Oscillators |
| 中文描述： | 133 MHz, OTHER CLOCK GENERATOR, UUC11 |
| 封裝： | WAFER-11 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 209K |
| 代理商： | CY2037BWAF |
High - Accuracy EPROM Programmable
PLL Die for Crystal Oscillators
CY2037
Cypress Semiconductor Corporation
Document #: 38-07354 Rev. *D
198 Champion Court
San Jose
,
CA 95134-1709
408-943-2600
Revised February 26, 2007
Features
EPROM-programmable die for in-package programming of
crystal oscillators
High resolution PLL with 12-bit multiplier and 10-bit divider
EPROM-programmable capacitor tuning array with Shadow
register
Twice programmable die (CY2037A, CY2037B
[1]
and
CY2037-2).
Simple 4-wire programming interface
On-chip oscillator runs from 10–30 MHz fundamental tuned
crystal
EPROM-selectable TTL or CMOS duty cycle levels
Operating frequency
— 1–133 MHz at 5V
— 1–100 MHz at 3.3V
— 1–66.6 MHz at 2.7V
Sixteen selectable post-divide options, using either PLL or
reference oscillator output
Programmable power down (PD#) or OE pin (CY2037A,
CY2037B, and CY2037-2)
Frequency Select (CY2037-3)
Programmable asynchronous or synchronous OE and
power down (PD#) modes (CY2037A, CY2037B and
CY2037-2)
Low Jitter outputs typically
— < ± 100 ps (pk-pk) at 5V and f>33 MHz
— < ± 125 ps (pk-pk) at 3.3V and f>33 MHz
3.3V or 5V operation
Small Die
Controlled rise and fall times and output slew rate
Benefits
Enables quick turnaround of custom oscillators
Lowers inventory costs through stocking of blank parts
Enables synthesis of highly accurate and stable output clock
frequencies with zero or low PPM
Enables fine-tuning of output clock frequency by adjusting
C
Load
of the crystal
Enables reprogramming of programmed part, to correct
errors, and control excess inventory
Enables programming of output frequency after packaging
Lowers cost of oscillator as PLL can be programmed to a
high frequency using a low-frequency, low-cost crystal
Duty cycle centered at 1.4V or V
DD
/2
Provides flexibility to service most TTL or CMOS applica-
tions
Services most PC, networking, and consumer applications
Provides flexibility in output configurations and testing
Enables low-power operation or output enable function
Enables two frequency options for meeting different industry
standards, i.e., PAL/NTSC
Provides flexibility for system applications, through
selectable instantaneous or synchronous change in outputs
Suitable for most PC, consumer, and networking applica-
tions
Lowers inventory cost as same die services both applica-
tions
Enables encapsulation in small-size, surface mount
packages
Has lower EMI than oscillators
Note
1. The CY2037A and CY2037B are identical. However, the CY2037B is recommended for all new designs
Table 1. Device Functionality: Output Frequencies
Parameter
Fo
Description
Condition
V
DD
= 4.5V–5.5V
V
DD
= 3.0V–3.6V
V
DD
= 2.7V–3.0V
Min.
1
1
1
Max.
133
100
66
Unit
MHz
MHz
MHz
Output frequency
[+] Feedback
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|---|---|
| CY2037BWAF-IL | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:High-Accuracy EPROM Programmable PLL Die for Crystal Oscillators |
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