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Z9974, Z9975, Z9975BAB

Z9974, Z9975, Z9975BAB Selling Leads, Datasheet

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Z9974, Z9975, Z9975BAB Datasheet download

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Part Number: Z9974

 

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Package Cooled: N/A

D/C: 09+

 

 

 
 
 
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About Z9974

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Datasheet: Z9974

File Size: 15383 KB

Manufacturer: CYPRESS

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About Z9951

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Datasheet: Z9951

File Size: 15383 KB

Manufacturer: CYPRESS

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About Z9951

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Datasheet: Z9951

File Size: 15383 KB

Manufacturer: CYPRESS

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Z9974 General Description

The Z9974 is a low cost 3.3V zero delay clock driver for high speed signal buffering and redistribution.


It provides the designer with the flexibility of selecting various Output/Input Frequency ratios selected by fsela, fselb, fselc, fselFB(0:1), and VCO_sel input settings.

The Z9974 integrates PLL technology for Zero delay propagation from Input to Output. The PLL feedback is externally available for propagation delay tuning and divide ratio alternatives as per table 1.

The Z9974 has three banks of outputs with independent divider stages. These dividers allow the banks to have different frequencies as per table 2.

TCLK0 and TCLK1 one are selectable input reference clocks and may be toggled dynamically during operation to provide modulation and phase shifting designs.

This device includes a Master Reset signal, which disables the outputs into Tristate (Hi-Z) mode, and reset all internal digital circuitry (excluding the PLL).

An Output Enable, OE, input pin is available for shutting Qa(0:4), Qb(0:4), and Qc(0:3) outputs in a low state. All outputs are held low with input clock turned off.

Z9974 Maximum Ratings

Input Voltage Relative to VSS: ........VSS-0.3V
Input Voltage Relative to VDD........ VDD+0.3V
Storage Temperature: .......-65°C to + 150°C
Operating Temperature:....... -40°C to +85°C
Maximum Power Supply:.............. 5.5V

This device contains circuitry to protect the inputs against damage due to high static voltages or electric field; however, precautions should be taken to avoid application of any voltage higher than the maximum rated voltages to this circuit. For proper operation, Vin and Vout should be constrained to the range: VSS<(Vin or Vout)<VDD
Unused inputs must always be tied to an appropriate logic voltage level (either VSS or VDD).

Z9974 Features

• Output Frequency up to 125MHz
• Supports Power PC TM, and Pentium TM Processors
• 15 Clock Output: Frequency Configurable
• Two Reference Clock Inputs for Dynamic Toggling
• Output Tri-State Control
• Spread Spectrum Compatible
• 3.3V Power Supply
• Pin Compatible with MPC974
• Industrial Temp. Range: -40°C to +85°C
• 52 Pin TQFP Package

Z9974 Connection Diagram

Z9975 General Description

The Z9975 is a low cost 3.3V zero delay clock driver for high speed signal buffering and redistribution.

It provides the designer with the flexibility of selecting various Output/Input Frequency ratios selected by fsela, fselb, fselc, fselFB(0:1), and VCO_sel input settings.

The Z9975 integrates PLL technology for Zero delay propagation from Input to Output. The PLL feedback is externally available for propagation delay tuning and divide ratio alternatives as per table 1.

The Z9975 has three banks of outputs with independent divider stages. These dividers allow the banks to have different frequencies as per table 2.

TCLK0 and TCLK1 one are selectable input reference clocks and may be toggled dynamically during operation to provide modulation and phase shifting designs.

This device includes a Master Reset signal that disables the outputs into Tristate (Hi-Z) mode, and reset all internal digital circuitry (excluding the PLL).

An Output Enable, OE, input pin is available for shutting Qa(0:4), Qb(0:4), and Qc(0:3) outputs in a low state. All outputs are held low with input clock turned off.

Z9975 Maximum Ratings

Input Voltage Relative to VSS: ....VSS-0.3V
Input Voltage Relative to VDD: ... VDD+0.3V
Storage Temperature: ..  -65°C to + 150°C
Operating Temperature: ..  -40°C to +85°C
Maximum Power Supply: ......... 5.5V

Z9975 Features

• Output Frequency up to 150MHz
• Supports Power PC TM, and Pentium TM Processors
• 15 Clock Output: Frequency Configurable
• Two Reference Clock Inputs for Dynamic Toggling
• Output Tri-State Control
• Spread Spectrum Compatible
• 3.3V Power Supply
• Industrial Temp. Range: -40°C to +85°C
• 52 Pin TQFP Package

Z9975 Connection Diagram

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