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CY22050KFZXI Datasheet(PDF) 5 Page - Cypress Semiconductor

Part # CY22050KFZXI
Description  One-PLL General Purpose Flash Programmable Clock Generator
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY22050KFZXI Datasheet(HTML) 5 Page - Cypress Semiconductor

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CY22050,
CY220501
Document #: 38-07006 Rev. *G
Page 5 of 10
Reference Crystal Input
The input crystal oscillator of the CY22050 is an important
feature because of the flexibility it allows the user in selecting a
crystal as a reference clock source. The oscillator inverter has
programmable gain, allowing for maximum compatibility with a
reference
crystal,
based
on
manufacturer,
process,
performance, and quality.
The value of the input load capacitors is determined by eight bits
in a programmable register. Total load capacitance is determined
by the formula:
CapLoad = (CL – CBRD – CCHIP)/0.09375 pF
In CyClocksRT, enter the crystal capacitance (CL). The value of
CapLoad is determined automatically and programmed into the
CY22050.
If you require greater control over the CapLoad value, consider
using the CY22150 for serial configuration and control of the
input load capacitors. For an external clock source, the default is
0.
Input load capacitors are placed on the CY22050 die to reduce
external
component
cost.
These
capacitors
are
true
parallel-plate capacitors, designed to reduce the frequency shift
that occurs when non-linear load capacitance is affected by load,
bias, supply, and temperature changes.
Note
3. Rated for 10 years
Absolute Maximum Conditions
Parameter
Description
Min
Max
Unit
VDD
Supply Voltage
–0.5
7.0
V
VDDL
I/O Supply Voltage
–0.5
7.0
V
TS
Storage Temperature[3]
–65
125
°C
TJ
Junction Temperature
125
°C
Package Power Dissipation—Commercial Temp
450
mW
Package Power Dissipation—Industrial Temp
380
mW
Digital Inputs
AVSS – 0.3
AVDD + 0.3
V
Digital Outputs referred to VDD
VSS – 0.3
VDD + 0.3
V
Digital Outputs referred to VDDL
VSS – 0.3
VDDL +0.3
V
ESD
Static Discharge Voltage per MIL-STD-833, Method 3015
2000
V
Recommended Operating Conditions
Parameter
Description
Min
Typ.
Max
Unit
VDD
Operating Voltage
3.135
3.3
3.465
V
VDDLHI
Operating Voltage
3.135
3.3
3.465
V
VDDLLO
Operating Voltage
2.375
2.5
2.625
V
TAC
Ambient Commercial Temp
0
70
°C
TAI
Ambient Industrial Temp
–40
85
°C
CLOAD
Max. Load Capacitance VDD/VDDL = 3.3V
15
pF
CLOAD
Max. Load Capacitance VDDL = 2.5V
15
pF
fREFD
Driven REF
1
133
MHz
fREFC
Crystal REF
8
30
MHz
tPU
Power up time for all VDDs to reach minimum specified
voltage (power ramps must be monotonic)
0.05
500
ms
[+] Feedback


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