AD9531BCPZ Clock Generator 1.6GHz Output Jitter <1ps 3.3V/5V Supply SPI Control LVDS/PECL Outputs Industrial Temp for 5G/Wireless/Networking

AD9531BCPZ Clock Generator 1.6GHz Output Jitter <1ps 3.3V/5V Supply SPI Control LVDS/PECL Outputs Industrial Temp for 5G/Wireless/Networking

 FEATURES

3 fully integrated PLL/VCO cores (PLL1, PLL2, and PLL3) Jitter performance: 0.462 ps rms typical

  PLL1, fractional-N mode, 12 kHz to 20 MHz bandwidth

Loss of reference and lock detection for each PLL

Pin-configurable common frequency translations

Automatic synchronization of all outputs on power-up

Manual output synchronization capability

Package available in an 88-lead LFCSP

PLL1 details

  Fractional-N/integer-N modes

  Optional external VCXO

  Fixed delay mode for constant static phase offset

  2 reference clock inputs

    Input format: differential/single-ended

    Frequency range: 9.5 MHz to 260 MHz

    Reference switching: manual/automatic

  10 ultralow jitter HSTL/CMOS outputs up to 400 MHz PLL2 details

  Integer-N mode (1 reference clock input)

    Input format: differential/single-ended/crystal1

    Frequency range: 9.5 MHz to 250 MHz

  12 HSTL/CMOS outputs up to 400 MHz

PLL3 details

  Integer-N mode (1 reference clock input)

    Input format: differential/single-ended/crystal1

    Frequency range: 9.5 MHz to 250 MHz

  12 HSTL/CMOS outputs up to 400 MHz

PLL3 details

  Integer-N mode (1 reference clock input)

    Frequency range: 9.5 MHz to 100 MHz

Input format: differential/crystal (supports a 25 MHz to

  50 MHz AT-cut quartz crystal resonator)

  2 HSTL/LVDS/CMOS outputs to 400 MHz/150 MHz (differential/CMOS)

APPLICATIONS

Radio equipment controller clocking

Low jitter/phase noise clock generation and distribution

Clock generation and translation for SONET, 10GE, 10G FC, and other 10 Gbps protocols

40 Gbps/100 Gbps networking line cards, including SONET, synchronous ethernet, OTU2/3/4

Forward error correction (G.710)

High performance wireless transceivers

ATE and high performance instrumentation

Broadband infrastructures

Ethernet line cards, switches, and routers

SATA and PCI-express

DESCRIPTION

The AD9531 provides a multioutput clock generator function and three on-chip phase-locked loop (PLL) cores with SPI programmable output frequencies and formats.

PLL1 provides two reference inputs and 10 outputs and includes four user selectable loop configurations. The PLL has a fully integrated loop filter requiring only a single external capacitor (or a series RC network). PLL1 provides a wide range of output frequencies up to 400 MHz and is capable of operating with an external voltage controlled crystal oscillator (VCXO) and loop filter, instead of the integrated voltage controlled oscillator (VCO) and loop filter.

PLL2 is an integer-N PLL providing a single reference input and 12 outputs. PLL2 synthesizes output frequencies up to 400 MHz from the REF2_x source and synchronizes the output clocks to the input reference.

PLL3 provides a single reference input and two outputs. PLL3 synthesizes output frequencies up to 400 MHz from the REF3_x source and synchronizes the output clocks to input reference. The AD9531 is available in an 88-lead LFCSP and is specified over the −40°C to +85°C operating temperature range.

Throughout this data sheet, multifunction pins, such as LOR/M4, are referred to either by the entire pin name or by a single function of the pin (for example, LOR, when only that function is relevant). In other cases, the text and figures of this data sheet contain references to a channel rather than a pin. For example, REF_A refers to the REF_A channel rather than the REF_AP and REF_AN pins. Likewise, OUT3_1 refers to Channel 1 of PLL3 rather than the OUT3_1P and OUT3_1N pins. Additionally, an abbreviated notation for a pin pair replaces an explicit reference to a each pin (for example, REF_Ax signifies the REF_AN and REF_AP pins.).

INFORMATION

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