Differential Delay Lines

CDLF

0805 Size Differential Chip Delay LineFEATURES
・

Smaller & lower cost than our existing products

・

10ps increments

・

15GHz Band width, available for 10Gbps data signals

・

Suitable for inter-lane de-skew on multi-lane high speed serialtransmission

・Solves the problems of space usage and the characteristic
degradation of the substrate trace.
( P l e a s e S e e Te c h n i c a l N o t e )・Based on your requirements, 2012 size single-ended Delay Lines
are also possible.

SPECIFICATIONS
Input/Output Impedance:
Differential 100ȍ±10% *Waveform Distortion:
Overshoot/preshoot under ±20%
Insulation Resistance:
DC50V, over 100Mȍ
Durable Voltage:
DC50V, 1 minuteRated Current:
50mA
Rated Voltage:
5V
Operating Temperature Range: -40°C to +85°C
Storage Temperature Range: -40°C to +120°C* Single-ended operation will not produce usable waveforms.
Part Number
CDLF01C
CDLF02C
CDLF03C
CDLF04C
CDLF05C
CDLF10C
CDLF15C

Delay Time

10ps±5ps
20ps±5ps
30ps±5ps
40ps±5ps
50ps±5ps
100ps±10ps
150ps±10ps
200ps
CDLF20C
䋫10ps/䋭20ps
300ps
CDLF30C
䋫10ps/䋭20psRise/Fall Time(1)*Actual(2)*Guarantee(3)*20ps Typ.
40ps Max.
20ps Typ.
40ps Max.
20ps Typ.
40ps Max.
20ps Typ.
40ps Max.
20ps Typ.
40ps Max.
20ps Typ.
40ps Max.
25ps Typ.
50ps Max.

-3dB Passband
DCActual(2)*Guarantee(3)* ResistanceDC㨪20GHz DC㨪15GHz 0.5ȍ Max.
DC㨪20GHz DC㨪15GHz 0.5ȍ Max.
DC㨪20GHz DC㨪15GHz 1.0ȍ Max.
DC㨪20GHz DC㨪15GHz 1.0ȍ Max.
DC㨪20GHz DC㨪15GHz 1.0ȍ Max.
DC㨪20GHz DC㨪15GHz 1.5ȍ Max.
DC㨪18GHz DC㨪12GHz 1.8ȍ Max.

25ps Typ.

50ps Max.

DC㨪15GHzDC㨪11GHz 2.5ȍ Max.

30ps Typ.

60ps Max.

DC㨪10GHz

DC㨪7GHz3.5ȍ Max.

(1)* 20%-80%(2)* Using the recommended Land Pattern, when there is no skew in the differential input signal.
(3)* Restricted value due to the test fixture.

Recommended combination for 60ps䌾90ps, 110ps䌾140ps and 160ps䌾190ps interpolation
Delay
Delay
Delay
Combination
Combination
Combination
TimeTime
Time
CDLF03C ×2
110ps
CDLF01C+CDLF10C
160ps
CDLF01C+CDLF15C
60ps
70ps
CDLF03C+CDLF04C
120ps
CDLF02C+CDLF10C
170ps
CDLF02C+CDLF15C
80ps
CDLF04C ×2130ps
CDLF03C+CDLF10C
180ps
CDLF03C+CDLF15C
90ps
CDLF04C+CDLF05C
140ps
CDLF04C+CDLF10C
190ps
CDLF04C+CDLF15C
We can provide the products for delay times shown in the table above, subject to volume requirements.

Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02

Differential Delay Lines

CDLF

0805 Size Differential Chip Delay Line

PACKAGE DIMENSIONS & PIN CONFIGURATION
Unit:mm (inch)
To l e r a n c e : ± 0 . 1 ( ± 0 . 0 0 4 )     Di r e ct i on marking㪥㫆㪅㪈㩷㫇㫀㫅SUGGESTED LAND PATTERN
Unit:mm (inch)
To l e r a n c e : ± 0 . 1 ( ± 0 . 0 0 4 )Example for Dielectric Layer

Solder Resist

Dielectric Layer (εr)

GND Plane

ε r, t a n d Wǭr    t
3.5
4.1

0.3(0.012)
W=0.44(0.017)
W=0.38(0.015)

0.4(0.016)
W=0.50(0.020)
W=0.46(0.018)

0.5(0.020)
W=0.52(0.020)
W=0.50(0.020)

SUGGESTED REFLOW SOLDERING CONDITIONSJ-STD-020C Pb-Free Standard
Storage conditions are as per MSL1. These component families are notmoisture-sensitive. Baking prior to reflow is not required.
Maximum Cycles: 2x

Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02

Differential Delay Lines

CDLF

0805 Size Differential Chip Delay LineTYPICAL APPLICATIONS AND TERMINATION METHODS㪧㪜㪚㪣㪣㪭㪧㪜㪚㪣

㪫㫎㫀㫊㫋㪼㪻㩷㪧㪸㫀㫉㩷㪫㪼㫉㫄㫀㫅㪸㫋㫀㫆㫅

㪣㪭㪛㪪

㪚㪤㪣

Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02

Differential Delay Lines

CDLF

0805 Size Differential Chip Delay LineOUTPUT WAVEFORMS (1)(1) CDLF05C (Actual measurement)
10Gbps PRBS Response

Differential Transmission / Reflection㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴㪇㪇                 Sdd21(Transmission)㪄㪈㪇㪄㪈㪇
Sdd11(Reflection)㪄㪉㪇㪄㪉㪇
㪄㪊㪇㪄㪊㪇㪄㪋㪇㪄㪋㪇
㪇㪇

[X-axis: 25ps/Div, Y-axis: 50mV/Div]

㪌㪌

㪈㪇
㪈㪇
㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌
㪈㪌

㪉㪇
㪉㪇

Differential Group Delay 16Gbps
     PRBS    Response 㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴

㪇㪅㪉
㪇㪅㪉
㪇㪅㪈㪌
㪇㪅㪈㪌
㪇㪅㪈
㪇㪅㪈
㪇㪅㪇㪌
㪇㪅㪇㪌
㪇㪇
㪇㪇

[X-axis: 15.625ps/Div, Y-axis: 50mV/Div](2) CDLF10C (Actual measurement)
10Gbps PRBS Response㪌㪌㪈㪇㪈㪇㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌㪈㪌㪉㪇㪉㪇Differential Transmission / Reflection㪤㪸㪾㫅㫀㫋㫌㪻㪼㩷㪲㪻㪙㪴㪤㪸㪾㫅㫀㫋㫌㪻㪼㩷㪲㪻㪙㪴㪇㪇

Sdd21(Transmission)㪄㪈㪇㪄㪈㪇

Sdd11(Reflection)㪄㪉㪇㪄㪉㪇
㪄㪊㪇㪄㪊㪇㪄㪋㪇㪄㪋㪇㪇㪇

[X-axis: 25ps/Div, Y-axis: 50mV/Div]

16Gbps PRBS Response㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㩷㪲㫅㫊㪴㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㩷㪲㫅㫊㪴

㪇㪅㪉
㪇㪅㪉

㪌㪌㪈㪇
㪈㪌
㪈㪇㪈㪌㪝㫉㪼㫈㫌㪼㫅㪺㫐㩷㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㩷㪲㪞㪟㫑㪴㪉㪇㪉㪇

Differential Group Delay㪇㪅㪈㪌
㪇㪅㪈㪌
㪇㪅㪈
㪇㪅㪈
㪇㪅㪇㪌
㪇㪅㪇㪌
㪇
㪇

[X-axis: 15.625ps/Div, Y-axis: 50mV/Div]

㪇㪇

㪌
㪌

㪈㪇
㪈㪌
㪈㪇
㪈㪌
㪝㫉㪼㫈㫌㪼㫅㪺㫐㩷㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㩷㪲㪞㪟㫑㪴㪉㪇㪉㪇Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02

Differential Delay LinesCDLF

0805 Size Differential Chip Delay LineOUTPUT WAVEFORMS (2)(3) CDLF20C (Actual measurement)
10Gbps PRBS Response

Differential Transmission / Reflection㪇           㪇 Sdd21(Transmission)㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴          㪄㪈㪇 Sdd11(Reflection)㪄㪈㪇㪄㪉㪇
㪄㪉㪇㪄㪊㪇㪄㪊㪇㪄㪋㪇㪄㪋㪇 㪇㪇[X-axis: 25ps/Div, Y-axis: 50mV/Div]

㪌㪌

㪈㪇
㪈㪇
㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌㪈㪌㪉㪇㪉㪇                 PRBS    Response 12.5GbpsDifferential Group Delay㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴㪇㪅㪋㪇㪅㪋㪇㪅㪊㪇㪅㪊㪇㪅㪉㪇㪅㪉㪇㪅㪈㪇㪅㪈㪇㪇 㪇㪇㪌㪌

[X-axis: 20ps/Div, Y-axis: 50mV/Div](4) CDLF30C (Actual measurement)
10Gbps PRBS Response㪈㪇㪈㪇㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌㪈㪌㪉㪇㪉㪇

Differential Transmission / Reflection㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴㪤㪸㪾㫅㫀㫋㫌㪻㪼㪲㪻㪙㪴㪇㪇                                

Sdd21(Transmission)㪄㪈㪇㪄㪈㪇㪄㪉㪇㪄㪉㪇㪄㪊㪇㪄㪊㪇

Sdd11(Reflection)      㪄㪋㪇       㪄㪋㪇 [X-axis: 25ps/Div, Y-axis: 50mV/Div]㪇㪇㪌㪌㪈㪇㪈㪇㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌㪈㪌㪉㪇㪉㪇Differential Group Delay

12.5Gbps PRBS Response㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴㪞㫉㫆㫌㫇㩷㪛㪼㫃㪸㫐㪲㫅㫊㪴㪇㪅㪌㪇㪅㪌㪇㪅㪋㪇㪅㪋㪇㪅㪊㪇㪅㪊㪇㪅㪉㪇㪅㪉㪇㪅㪈㪇㪅㪈

[X-axis: 20ps/Div, Y-axis: 50mV/Div]

㪇㪇

㪌
㪌

㪈㪇
㪈㪇
㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪝㫉㪼㫈㫌㪼㫅㪺㫐㪲㪞㪟㫑㪴㪈㪌㪈㪌㪉㪇㪉㪇Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02

Differential Delay Lines

CDLF

0805 Size Differential Chip Delay Line㪫㪼㪺㪿㫅㫀㪺㪸㫃㩷㪥㫆㫋㪼Within tens of picoseconds of delay time adjustment, a substrate trace can be usedfor the return circuit. For a 100ps adjustment, either a substrate trace of a coupledd i f f e r e n t i a l p a i r, a s s h o w n i n F i g . 1 , o r a s u b s t r a t e t r a c e o f a n u n c o u p l e d d i f f e r e n t i a lp a i r, a s s h o w n i n F i g . 2 c a n b e a s s u m e d . H o w e v e r, t h e t r a c e a r e a i n e i t h e r c a s e w i l lb e c o m e v e r y l a r g e . M o r e o v e r, a s s h o w n i n F i g . 1 , a t i m e l a g a r i s e s b e t w e e n t h ed i f f e r e n t i a l p a i r s d u e t o t h e i m b a l a n c e a t t h e c o r n e r. C o m m o n m o d e n o i s e w i l l o c c u r
at the mid-point, as will the fear of noise radiation. It is very likely that high-quality
10GHz+ band width characteristics cannot be obtained for the circuit shown in Fig.2.
Fig.1 and Fig.2 are verified with an electromagnetic simulator and the characteristics
are compared to the results utilizing the CDLF10C. The published Recommended Land
Pattern is assumed for the substrate: W=0.38mm, t=0.3mm, and εr=4.1. The underside㩷

of the substrate is GND plane.
Mid-point

Fig.1 Trace example of a coupled
differential pair
(Trace area: 40mm2)

Fig.3 CDLF10C
Mounting Image(Footprint: 2.5mm2)

Fig.2 Trace example of an uncoupled
differential pair
(Trace area: 30mm2)

Coupled Trace Comparison (Fig.1) and CDLF10C (Fig.3)
Common-mode Waveform

Common-mode Spectrum
0.03

0.50

Mid-point of Coupled Trace
Output of Coupled Traceg()[V]Magnitude

Magnitude [V]Mid-point of Coupled Trace
0.25
0.00
-0.25

CDLF10C

0.02

CDLF10C
0.01

Output of Coupled Trace

-0.50

0.00
56789100246Time [ns]8101214161820

Frequency [GHz]Uncoupled Trace Comparison (Fig.2) and CDLF10C (Fig.3)
Differential Transmission

Differential Group Delay

Magnitude [dB]Group Delay [ps]CDLF10C0-1-2-3-4-5-6-7-8-9-10

Uncoupled Trace

0246810 12 14
Frequency [GHz]161820018016014012010080604020020

Uncoupled Trace

CDLF10C0246810 12 14
Frequency [GHz]1618

20024616

1820

1.5

1.5
02468101214161820

1.5

1.5

1.0

1.0

0.5

Magnitude [V]Magnitude [V]Differential Output Eye-Pattern (10Gbps PRBS, tr/tf=20ps(20%-80%))

Uncoupled Trace

0.0-0.5-1.08101214

CDLF10C

0.5
0.0-0.5-1.0-1.5-1.50204060

80 100 120 140 160 180 200
Time [ps]0204060

80 100 120 140 160 180 200
Time [ps]Note: Published speciﬁcations are subject to change without prior notice.
WN154013N/15.02