XK21 datasheet(7/29 Pages) RENESAS

Part #	XK21

Description	Ultra-low Phase Noise Quartz-based PLL Oscillator

PDF	29 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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7 / 29 page

R31DS0145EU0116 Rev. 1.16

Page 7

Sep 24, 2025

XK Datasheet

Figure 5. Phase Jitter Test Circuit

Table 5. Configurations for AC/DC Tests

Output Type

V+ (V)

V- (V)

Ro (ohms)

Rs (ohms)

Zo (ohms)

L (cm)

CML

-1.8 ± 5%

2.5

-2.5 ± 5%

-3.3 ± 5%

HCSL

1.8 ± 5%

2.5

2.5 ± 5%

3.3 ± 5%

LVCMOS

0.9 ± 5%

(VDD/2 ± 5%)

-0.9 ± 5%

(-VDD/2 ± 5%)

2.5

LVDS

1.8 ± 5%

2.5

2.5 ± 5%

3.3 ± 5%

LVPECL

-1.3 ± 5%

2.5

Table 6. Configurations for Phase Jitter Measurements

Output Type

V+ (V)

V- (V)

RT (ohms)

CAC

Zo (ohms)

L (cm)

CML

-1.8 ± 5%

Not Used

2.5

-2.5 ± 5%

-3.3 ± 5%

HCSL

1.8 ± 5%

Not Used

2.5

2.5 ± 5%

3.3 ± 5%

LVCMOS

0.9 ± 5%

(VDD/2 ± 5%)

-0.9 ± 5%

(-VDD/2 ± 5%)

Not Used

2.5

V+

V-

PNA

Balun

Coax

CAC

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