Analog Devices Inc. AD9528BCPZ-REEL7

The AD9528BCPZ-REEL7, produced by Analog Devices Inc., is a highly advanced clock generator and phase-locked loop (PLL) device. It features a two-stage PLL architecture, which includes an integrated JESD204B/JESD204C SYSREF generator. This device is designed to provide low jitter and low phase noise clock signals, making it ideal for applications requiring precise timing and synchronization.

The AD9528 includes a first-stage PLL (PLL1) that conditions the input reference clock to reduce jitter, and a second-stage PLL (PLL2) that generates high-frequency clocks with minimal integrated jitter and broadband noise. The device also incorporates an on-chip voltage-controlled oscillator (VCO) that tunes from 3.450 GHz to 4.025 GHz and supports external VCXO for low noise reference.

• Two-stage PLL architecture with PLL1 for input reference conditioning and PLL2 for high-frequency clock generation.
• Integrated JESD204B/JESD204C SYSREF generator for multiple device synchronization.
• On-chip VCO tuning from 3.450 GHz to 4.025 GHz.
• External VCXO support for low noise reference.
• Fourteen output channels with configurable sources (PLL1, PLL2, or SYSREF generator).
• Each output channel includes a divider with coarse digital phase adjustment and an analog fine phase delay block.
• Support for single shot, N-shot, or continuous SYSREF signals.
• Dual input flexible buffer capability to distribute 14 device clock and/or SYSREF signals.

• LTE and multicarrier GSM base stations.
• Wireless and broadband infrastructure.
• Medical instrumentation.
• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs.
• Low jitter, low phase noise clock distribution.
• ATE (Automated Test Equipment) and high-performance instrumentation.
• Spectrum analyzers and data acquisition systems.
• Military electronics applications such as radar and jamming/anti-jamming measures.

1. What is the primary function of the AD9528?

   The AD9528 is a two-stage PLL with an integrated JESD204B/JESD204C SYSREF generator, designed to provide low jitter and low phase noise clock signals for multiple device synchronization.

2. What are the key components of the AD9528's PLL architecture?

   The AD9528 features a first-stage PLL (PLL1) for input reference conditioning and a second-stage PLL (PLL2) for high-frequency clock generation, along with an on-chip VCO and external VCXO support.

3. How many output channels does the AD9528 have, and what are their maximum frequencies?

   The AD9528 has 14 output channels, with six outputs capable of up to 1.25 GHz and eight outputs capable of up to 1 GHz.

4. What is the role of the SYSREF generator in the AD9528?

   The SYSREF generator outputs single shot, N-shot, or continuous signals synchronous to the PLL1 and PLL2 outputs to time align multiple devices.

5. What types of applications is the AD9528 suited for?

   The AD9528 is suited for applications such as LTE and multicarrier GSM base stations, wireless and broadband infrastructure, medical instrumentation, and high-speed data acquisition systems.

6. What is the package type and number of pins for the AD9528BCPZ-REEL7?

   The AD9528BCPZ-REEL7 comes in an LFCSP-72 (10x10) package with 72 pins.

7. What is the operating temperature range for the AD9528?

   The AD9528 operates over an ambient temperature range of -40°C to +85°C.

8. Can the AD9528 be used as a flexible buffer?

   Yes, the AD9528 can be used as a dual input flexible buffer to distribute 14 device clock and/or SYSREF signals.

9. How does the AD9528 handle power-up?

   At power-up, the AD9528 sends the VCXO signal directly to Output 12 and Output 13 to serve as the power-up ready clocks.

10. What are the typical supply voltage and current requirements for the AD9528?

    The typical supply voltage is 3.3 V ± 5%, and the specific current requirements can be found in the detailed specifications section of the datasheet.