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Name: CDCE949PW
Brand: Texas Instruments
SKU: CDCE949PW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments CDCE949PW

Part No.:: CDCE949PW

Manufacturer:: Texas Instruments

Package:: 24-TSSOP (0.173, 4.40mm Width)

Datasheet:: CDCE949PW.pdf

Description:: IC 4-PLL VCXO LVCMOS 24-TSSOP

In Stock:: 2919

Quantity:: Add To Cart

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CDCE949PW Specifications

Package/Case:
24-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
PLL Clock Generator
PLL:
Yes with Bypass
Input:
LVCMOS, Crystal
Output:
LVCMOS
NumberofCircuits:
1
Ratio-Input:Output:
1:9
Differential-Input:Output:
No/No
Frequency-Max:
230MHz
Divider/Multiplier:
Yes/No
Voltage-Supply:
1.7V ~ 1.9V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

CDCE949PW this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including CDCE949PW price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for CDCE949PW to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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CDCE949PW information

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CDCE949PW Typical application Circuitry

CDCE949PW

A single input reference clock can be used to create several output clocks using the programmable clock synthesizer chip CDCE949PW. It is intended to offer accurate and adaptable clocking solutions for a variety of uses, such as digital multimedia, networking, and telecommunications.

Key Specifications of the CDCE949PW:

1. Input Frequency Range: Supports a wide range of input frequencies, from a few kHz to several MHz.

2. Output Frequency Range: Capable of generating output frequencies up to 230 MHz.

3. Programmability: Offers programmable dividers, phase-locked loop (PLL) multipliers, and output dividers to create a variety of clock frequencies.

4. Jitter Performance: Provides low-jitter output clocks, essential for high-speed digital systems.

5. Supply Voltage: Operates with a supply voltage of 3.3V.

Application Scenario: Network Router Clock Generation

In this example, we'll design a circuit using the CDCE949PW to generate multiple clock frequencies for a network router.

1. Reference Clock Input:

- Crystal Oscillator Connection (Pins 1, 2 - XI, XO): Connect a 25 MHz crystal oscillator between these pins to provide a stable reference clock to the chip.

2. Output Clocks Configuration:

- Output Clock 1 (Pin 21 - Y1): Configure this output to provide a 50 MHz clock for the router's CPU.

- Output Clock 2 (Pin 23 - Y3): Configure this output to provide a 125 MHz clock for the router's Ethernet PHY.

3. Power Supply and Grounding:

- Supply Voltage (Pin 11 - VDD): Connect to a 3.3V power source to power the chip.

- Ground Connection (Pins 5, 14, 24 - GND): Connect to the ground of the power supply.

4. Programming Interface:

- I2C Interface (Pins 6, 7 - SDA, SCL): Connect these pins to a microcontroller to configure the chip's settings via the I2C serial interface.

Circuit Design Considerations of the CDCE949PW:

When designing the circuit, consider the following factors:

1. Stable Power Supply: Use bypass capacitors near the VDD pin to filter out noise and ensure a stable power supply.

2. Reference Clock Quality: Select a high-quality crystal oscillator for the XI and XO pins to minimize jitter in the reference clock.

3. I2C Communication: Ensure proper pull-up resistors are used on the SDA and SCL lines for reliable I2C communication with the microcontroller.

4. Output Clock Routing: Minimize the length of traces carrying the output clocks to reduce signal degradation and crosstalk.

5. Thermal Management: Provide adequate cooling for the chip, especially when operating at high frequencies, to prevent overheating.

By using the CDCE949PW clock synthesizer in a network router, you can achieve precise and stable clocking for various subsystems, ensuring optimal performance and reliable operation.

CDCE949PW FAQ

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6. What is the process for return or replacement of CDCE949PW?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the CDCE949PW we delivered, we will accept the replacement or return of the CDCE949PW only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of CDCE949PW.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations