Z9973

Features: • Output frequency up to 125 MHz• 12 clock outputs: frequency configurable• 350 ps max output-to-output skew• Configurable output disable• Two reference clock inputs for dynamic toggling• Oscillator or PECL reference input• Spread spectrum-compat...

product image

Z9973 Picture
SeekIC No. : 004550495 Detail

Z9973: Features: • Output frequency up to 125 MHz• 12 clock outputs: frequency configurable• 350 ps max output-to-output skew• Configurable output disable• Two reference clock...

floor Price/Ceiling Price

Part Number:
Z9973
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/3/27

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

• Output frequency up to 125 MHz
• 12 clock outputs: frequency configurable
• 350 ps max output-to-output skew
• Configurable output disable
• Two reference clock inputs for dynamic toggling
• Oscillator or PECL reference input
• Spread spectrum-compatible
• Glitch-free output clocks transitioning
• 3.3V power supply
• Pin-compatible with MPC973
• Industrial temperature range: 40 to +85
• 52-pin TQFP package




Pinout

  Connection Diagram


Specifications

Maximum Input Voltage Relative to VSS: ............. VSS 0.3V
Maximum Input Voltage Relative to VDD: ..............VDD + 0.3V
Storage Temperature: .................................65to + 150
Operating Temperature: ................................40 to +85
Maximum ESD protection .................................................2 kV
Maximum Power Supply: .................................................5.5V
Maximum Input Current:............................................±20 mA

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).




Description

The Z9973 has an integrated PLL that provides low-skew and low-jitter clock outputs for high-performance microprocessors. Three independent banks of four outputs as well as an independent PLL feedback output, FB_OUT, provide exceptional flexibility for possible output configurations. The PLL is ensured stable operation given that the VCO is configured to run between 200 MHz to 480 MHz. This allows a wide range of output frequencies up to125 MHz.

The phase detector compares the input reference clock to the external feedback input. For normal operation, the external feedback input, FB_IN, is connected to the feedback output, FB_OUT. The internal VCO is running at multiples of the input reference clock set by FB_SEL(0:2) and VCO_SEL select inputs (see Table 1). The VCO frequency is then divided to provide the required output frequencies. These dividers are set by SELA(0,1), SELB(0,1), SELC(0,1) select inputs (see Table 2). For situations in which the VCO needs to run at relatively low frequencies and hence might not be stable, assert VCO_SEL LOW to divide the VCO frequency by 2. This will maintain the desired output relationships, but will provide an enhanced PLL lock range.

The Z9973 is also capable of providing inverted output clocks. When INV_CLK is asserted HIGH, QC2 and QC3 output locks are inverted. These clocks could be used as feedback outputs to the Z9973 or a second PLL device to generate early or late clocks for a specific design. This inversion does not affect the output to output skew.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
Undefined Category
Static Control, ESD, Clean Room Products
Crystals and Oscillators
Cable Assemblies
Batteries, Chargers, Holders
Motors, Solenoids, Driver Boards/Modules
View more