ZL40272 datasheet(40/54 Pages) MICROCHIP

Part #	ZL40272

Description	Low-Skew, Low Additive Jitter, 12 Output HCSL/LVDS/ LVPECL Fanout Buffer with Per-Output Enable Control

PDF	54 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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40 / 54 page

ZL40272

DS20006408B-page 40



2020 - 2021 Microchip Technology Inc. and its subsidiaries

FIGURE 4-5:

Differential Measurement Points for Ringback.

FIGURE 4-6:

PCIe Test Circuit.

TABLE 4-16: LVPECL OUTPUT PHASE NOISE WITH 25 MHZ XTAL

Note 1

Characteristics

Min.

Typ.

Max.

Units

Notes

Jitter RMS in 12 kHz to 5 MHz

Band

—

265

—

VDD = 3.3V, VDDO = 3.3V

—

213

—

VDD = 2.5V, VDDO = 2.5V

Noise Floor

—

–102

—

dBc/Hz @100 Hz, VDD = 3.3V, VDDO = 3.3V

—

–127

—

dBc/Hz @1 kHz, VDD = 3.3V, VDDO = 3.3V

—

–153

—

dBc/Hz @10 kHz, VDD = 3.3V, VDDO = 3.3V

—

–158

—

dBc/Hz @100 kHz, VDD = 3.3V, VDDO = 3.3V

—

–158

—

dBc/Hz @1 MHz, VDD = 3.3V, VDDO = 3.3V

—

–158

—

dBc/Hz @5 MHz, VDD = 3.3V, VDDO = 3.3V

—

–96

—

dBc/Hz @100 Hz, VDD = 2.5V, VDDO = 2.5V

—

–122

—

dBc/Hz @1 kHz, VDD = 2.5V, VDDO = 2.5V

—

–151

—

dBc/Hz @10 kHz, VDD = 2.5V, VDDO = 2.5V

—

–160

—

dBc/Hz @100 kHz, VDD = 2.5V, VDDO = 2.5V

—

–160

—

dBc/Hz @1 MHz, VDD = 2.5V, VDDO = 2.5V

—

–160

—

dBc/Hz @5 MHz, VDD = 2.5V, VDDO = 2.5V

Note 1: Values are over Recommended Operating Conditions.

OUTx_p - OUTx_n

DUT

15 dB loss at 4 GHz

2 pF 5%

CK#

Di eren al PCB trace

ZDIFF = 100 ±10%

Refclk Margins

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