ZL30252 Series

2-In/3-Out Any-to-Any Clock Mult/Jitter Atten

Catalog

2-In/3-Out Any-to-Any Clock Mult/Jitter Atten

Part	Ratio - Input:Output	Number of Circuits	Differential - Input:Output [custom]	Differential - Input:Output [custom]	Input	Mounting Type	Package / Case	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Frequency - Max [Max]	PLL	Output	Operating Temperature [Max]	Operating Temperature [Min]
Microchip Technology ZL30252LDG1	4:3	1			CML, CMOS, Crystal	Surface Mount	32-VFQFN Exposed Pad	32-QFN (5x5)	3.465 V	1.71 V	1.035 GHz	Yes with Bypass	CML, CMOS	85 °C	-40 °C
Microchip Technology ZL30252LDG1

Catalog

2-In/3-Out Any-to-Any Clock Mult/Jitter Atten

Key Features

• Three Input Clocks* Two Differential/CMOS inputs

• * One single-ended/CMOS input

• * Any input frequency from 1kHz to 1250MHz (1kHz to 300MHz for CMOS)

• * Inputs continually monitored for activity and frequency accuracy

• * Automatic or manual reference switching

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• Low-Bandwidth DPLL* Programmable bandwidth, 14Hz to 500HzClose

• * Attenuates jitter up to several UI

• * Freerun or digital hold on loss of all inputs

• * Digitally controlled phase adjust

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• Low-Jitter Fractional-N APLL and 3 Outputs* Any Output Frequency from <1Hz to 1035MHz

• * High-resolution fractional frequency conversion with 0ppm error

• * Easy-to-configure, encapsulated design requires no external VCXO or loop filter components

• * Each output has independent dividers

• * Output Jitter Typically 0.16 to 0.28ps RMS (12kHz to 20MHz integration band)

• * Outputs are CML or 2xCMOS, can interface to LVDS, LVPECL, HSTL, SSTL and HCSL

• * In 2xCMOS mode, the P and N pins can be different frequencies (e.g. 125MHz and 25MHz)

• * Per-output supply pin with CMOS output voltages from 1.5V to 3.3V

• * Precise output alignment circuitry and per-output phase adjustment

• * Per-output enable/disable and glitchless start/stop (stop high or low)

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• General Features* Automatic self-configuration at power-up from external (ZL30252) or internal (ZL30253) EEPROM; up to four configurations, pin-selectable

• * Numerically controlled oscillator mode

• * Spread-spectrum modulation mode

• * SPI or I2C processor Interface

• * Tiny 5x5mm QFN package

• * Easy-to-use evaluation software

Description

The ZL30252 is a flexible, high-performance, clock multiplier/jitter attenuator IC. From any input clock frequency 1kHz to 1250MHz the ZL30252 can produce frequency-locked output frequencies from 1Hz to 1035MHz and as many as 3 differential or 6 CMOS output clock signals. Output jitter is typically 0.16 to 0.28ps RMS (12kHz to 20MHz). Automatic self-configuration from external EEPROM allows clock signals to be available immediately after power-up or reset.