AD9523-1BCPZ

Overview

The AD9523-1BCPZ is a low jitter clock generator featuring 14 configurable outputs supporting LVPECL, LVDS, HSTL, and LVCMOS standards. It integrates a dual PLL architecture with an on-chip VCO tuning from 2.94 GHz to 3.1 GHz. The device provides absolute output jitter below 150 fs at 122.88 MHz (12 kHz to 20 MHz integration) and supports zero-delay operation with adjustable delay steps of half the VCO divider period. Operating voltage ranges from 1.768 V to 3.465 V across multiple supplies, housed in a 72-LFCSP-VQ package.

Feature Summary

• Dual PLL architecture with integrated VCO (2.94 GHz to 3.1 GHz)
• 14 outputs configurable for LVPECL, LVDS, HSTL, or LVCMOS
• Absolute output jitter <150 fs at 122.88 MHz (12 kHz–20 MHz)
• Zero-delay operation with 63-step adjustable delay

Applications

• LTE and multicarrier GSM base stations
• Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, MxFE s
• SONET, 10Ge, and 10G FC protocol clock generation
• Medical instrumentation and ATE systems

Procurement Notes

Verify the specific suffix BCPZ corresponds to the 72-LFCSP-VQ package variant. Confirm supply voltage requirements match the 3.3 V and 1.8 V rails specified in the datasheet. Ensure ESD precautions are observed during handling due to sensitivity ratings.

Selection Notes

Select this component when low phase noise is critical for data converter SNR performance. The dual VCO dividers allow flexible frequency synthesis. Verify that the required output swing modes (LVPECL, LVDS, etc.) align with system termination requirements.

Part Context

This part belongs to the AD9523 family, specifically designed for LTE/GSM base station applications. It differs from the standard AD9523 by utilizing a lower frequency VCO range (2.94–3.1 GHz vs. 3.6–4.0 GHz) and offering 63 resolution steps for adjustable delay compared to 8 steps in the base model.

Replacement Considerations

The AD9523BCPZ is a related variant within the same family but features a different VCO range (3.6–4.0 GHz) and fewer delay resolution steps (8 vs. 63). Substitution requires verification of VCO frequency compatibility and timing alignment specifications.