Analog Devices Inc. AD9516-5BCPZ-REEL7

Overview

AD9516-5BCPZ-REEL7 from Analog Devices is a 14-output, low-jitter clock generator IC with integrated PLL and external VCO/VCXO support up to 2.4 GHz. It delivers six 1.6 GHz LVPECL outputs (grouped in three pairs), four 800 MHz LVDS outputs (in two pairs, each reconfigurable as two 250 MHz CMOS outputs), additive output jitter as low as 225 fs rms (LVPECL), and channel-to-channel skew <10 ps. It is used in high-speed data converter clocking and 10/40/100 GbE line cards.

For engineers reviewing the AD9516-5BCPZ-REEL7 datasheet, AD9516-5BCPZ-REEL7 pinout, AD9516-5BCPZ-REEL7 application, or AD9516-5BCPZ-REEL7 equivalent, key selection criteria include subpicosecond jitter performance, programmable coarse/fine delay per output group, automatic power-up synchronization, industrial temperature range (−40°C to +85°C), and 64-lead LFCSP packaging with single 3.3 V supply operation.

Technical Context

The AD9516-5BCPZ-REEL7 implements a low-phase-noise PLL core with programmable PFD frequency (up to 100 MHz), selectable antibacklash pulse width (1.3–6.0 ns), and digital lock detect with configurable window (3.5–15 ns). Its clock distribution architecture separates LVPECL and LVDS/CMOS paths, each with cascaded dividers: LVPECL groups use 1-to-32 dividers with coarse phase delay; LVDS groups use two-stage 1-to-32 dividers (max 1024 total) plus fine Δt delay per output.

It supports dual reference inputs (differential REFIN/REFIN or single-ended REF1/REF2), automatic/manual reference switchover, holdover modes, and serial control via 25 MHz SPI-compatible port. The device accommodates external VCOs up to 2.4 GHz using dedicated VCP supply (up to 5.25 V), while LVPECL outputs operate from 2.375 V to 3.6 V and core logic runs at 3.3 V ±5%.

Key Specifications

Pinout & Package

The AD9516-5BCPZ-REEL7 is housed in a 64-lead, 9 mm × 9 mm LFCSP package with exposed thermal pad. Pin functions are defined per Analog Devices AD9516-5 Rev. A datasheet (Pages 16–17).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock generation applications.

Compared with AD9516-5BCPZ-REEL7, AD9517-5BCPZ-REEL7 offers identical timing performance with added EEPROM-based configuration retention, while LMK04832RHAT provides lower jitter and JESD204B features at the cost of architectural divergence and no CMOS output flexibility.

Availability

AD9516-5BCPZ-REEL7 is available at Aetrix Electronics and suitable for 10/40/100 GbE networking, high-speed data converter clocking, and wireless transceiver timing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for AD9516-5BCPZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD9516 family was designed specifically for ultra-low-jitter clock distribution and generation in demanding data converter, communications, and instrumentation systems - prioritizing phase noise, additive jitter, and deterministic delay control.

FAQ

What is the maximum supported VCO frequency for AD9516-5BCPZ-REEL7?

The AD9516-5BCPZ-REEL7 supports external VCOs or VCXOs up to 2.4 GHz on its CLK/CLK differential input. This is confirmed in the General Description and Specifications sections of the Rev. A datasheet, where "External VCO/VCXO to 2.4 GHz optional" is explicitly stated. Operation above 1.6 GHz requires enabling the VCO divider path, and the prescaler supports up to 3000 MHz input when configured for P = 32 DM mode.

Does AD9516-5BCPZ-REEL7 support both LVDS and CMOS outputs simultaneously?

Yes, AD9516-5BCPZ-REEL7 supports simultaneous LVDS and CMOS outputs: its four LVDS outputs (OUT6–OUT9) can each be independently reconfigured as two 250 MHz CMOS outputs (e.g., OUT6 → OUT6A/OUT6B), yielding up to eight CMOS outputs. This is documented in the General Description ("Each LVDS output can be reconfigured as two 250 MHz CMOS outputs") and Table 4 (CMOS CLOCK OUTPUTS section).

What is the additive jitter specification for AD9516-5BCPZ-REEL7 LVPECL outputs?

The AD9516-5BCPZ-REEL7 specifies 225 fs rms additive output jitter for its LVPECL outputs under distribution-only conditions (VCO divider not used), as stated in the FEATURES list and verified in Table 7 (CLOCK OUTPUT ADDITIVE TIME JITTER). This value is measured over a 12 kHz to 20 MHz integration bandwidth using the rising edge of the clock signal.

How many total clock outputs does AD9516-5BCPZ-REEL7 provide?

The AD9516-5BCPZ-REEL7 provides 14 clock outputs: six LVPECL (OUT0–OUT5), four LVDS (OUT6–OUT9), and - when all LVDS outputs are reconfigured - eight CMOS outputs (OUT6A/B, OUT7A/B, OUT8A/B, OUT9A/B). However, the total concurrent active outputs remain 14: either six LVPECL + four LVDS, or six LVPECL + eight CMOS, depending on configuration.

Is AD9516-5BCPZ-REEL7 compatible with a 3.3 V only supply system?

Yes, AD9516-5BCPZ-REEL7 operates from a single 3.3 V supply (VS = 3.3 V ±5%) for core logic and LVPECL outputs. The LVPECL supply (VS_LVPECL) can range from 2.375 V to 3.6 V, and the charge pump supply (VCP) may be extended to 5.25 V only if an external VCO requires higher voltage - but this is optional. For pure clock distribution (no external VCO), 3.3 V suffices for all supplies.