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参数资料
| 型号： | CS2000P-DZZR |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | PLL合成/DDS/VCOs |
| 中文描述： | PHASE LOCKED LOOP, 30 MHz, PDSO10 |
| 封装： | 3 MM, LEAD FREE, MO-187, MSOP-10 |
| 文件页数： | 1/26页 |
| 文件大小： | 251K |
| 代理商： | CS2000P-DZZR |
Copyright
Cirrus Logic, Inc. 2010
(All Rights Reserved)
Fractional-N Clock Synthesizer & Clock Multiplier
Features
Delta-Sigma Fractional-N Frequency Synthesis
–
Generates a Low Jitter 6 - 75 MHz Clock
from an 8 - 75 MHz Reference Clock
Clock Multiplier / Jitter Reduction
–
Generates a Low Jitter 6 - 75 MHz Clock
from a Jittery 50 Hz to 30 MHz Clock
Source
Highly Accurate PLL Multiplication Factor
–
Maximum Error Less Than 1 PPM in High-
Resolution Mode
One-Time Programmability
–
Configurable Hardware Control Pins
–
Configurable Auxiliary Output
Flexible Sourcing of Reference Clock
–
External Oscillator or Clock Source
–
Supports Inexpensive Local Crystal
Minimal Board Space Required
–
No External Analog Loop-filter
Components
General Description
The CS2000-OTP is an extremely versatile system
clocking device that utilizes a programmable phase lock
loop. The CS2000-OTP is based on a hybrid analog-
digital PLL architecture comprised of a unique combina-
tion
of
a
Delta-Sigma
Fractional-N
Frequency
Synthesizer and a Digital PLL. This architecture allows
for both frequency synthesis/clock generation from a
stable reference clock as well as generation of a low-jit-
ter clock relative to an external noisy synchronization
clock with frequencies as low as 50 Hz. The CS2000-
OTP has many configuration options which are set once
prior to runtime. At runtime there are three hardware
configuration pins available for mode and feature
selection.
The CS2000-OTP is available in a 10-pin MSOP pack-
age in Commercial (-10°C to +70°C) and Automotive
(-40°C to +85°C) grades. Customer development kits
are also available for custom device prototyping, small
production
programming,
and
device
evaluation.
Please see “Ordering Information” on page 29 for com-
plete details.
Hardware Configuration
Auxiliary
Output
6 to 75 MHz
PLL Output
Frequency Reference
3.3 V
Hardware Control
8 MHz to 75 MHz
Low-Jitter Timing Reference
Fractional-N
Frequency Synthesizer
Digital PLL & Fractional
N Logic
Output to Input
Clock Ratio
N
Timing Reference
PLL Output
Lock Indicator
50 Hz to 30 MHz
Frequency Reference
Output to Input
Clock Ratio
MAY '10
DS758F2
CS2000-OTP
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