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CDM-Type LTCC Chip Delay Line
The CDM-type Delay Line is an LTCC (Low-Temperature, Co-fired Ceramic) chip Delay Line. By removing one (1) line from the CDKD-type differential Delay Line, we have been able to accommodate a very compact overall area of only 5mm x 2.5mm. In addition, we have described a CDM/CDKD common land pattern on which the CDM-type should be mounted for delay times within a 3ns delay range, and on which the CDKD-type should be mounted as a single-ended Delay Line, with the 2 differential lines connected in series (CDKD 2-line connection), for delay times over 3ns. We provide a 0.1~10ns delay range using a CDM/CDKD common land pattern.
Common Specifications
| Impedance: |
50 W ±10%
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| Waveform Distortion: |
Overshoot/preshoot under 20% |
| Delay Time Temp. Coefficient: |
0~150ppm/°C |
| Insulation Resistance: |
DC50V, over 100M W |
| Operating Temperature Range: |
-40°C to +85°C |
| Storage Temperature Range: |
-40°C to +120°C |
| Storage Conditions: |
-40°C to +30°C, under 60%RH within 1 year (MSL 2) |
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CDM Product Specifications
Part
Number |
Delay Time |
Rise/Fall
Time
(20-80%) |
-3 dB Passband |
DC
Resistance |
| Actual(1)* |
Actual(2)* |
Guarantee
(3)* |
CDM0105 |
100ps ±50ps |
100ps Max. |
15GHz Typ. |
3GHz Typ. |
3GHz Min. |
1.0 W Max. |
| CDM0205 |
200ps ±50ps |
100ps Max. |
10GHz Typ. |
3GHz Typ. |
3GHz Min. |
1.0 W Max. |
| CDM0305 |
300ps ±50ps |
100ps Max. |
10GHz Typ. |
3GHz Typ. |
3GHz Min. |
1.0 W Max. |
| CDM0405 |
400ps ±50ps |
100ps Max. |
7.5GHz Typ. |
3GHz Typ. |
3GHz Min. |
1.5 W Max. |
| CDM0505 |
500ps ±50ps |
100ps Max. |
6GHz Typ. |
3GHz Typ. |
3GHz Min. |
1.5 W Max. |
| CDM0605 |
600ps ±50ps |
100ps Max. |
5GHz Typ. |
3GHz Typ. |
3GHz Min. |
3.0 W Max. |
| CDM0705 |
700ps ±50ps |
110ps Max. |
4.3GHz Typ. |
3GHz Typ |
3GHz Min. |
3.0 W Max. |
| CDM0805 |
800ps ±50ps |
120ps Max. |
3.8GHz Typ. |
3GHz Typ. |
3GHz Min. |
3.0 W Max. |
| CDM0905 |
900ps ±50ps |
130ps Max. |
3.3GHz Typ. |
3GHz Typ. |
2.7GHz Min. |
3.5 W Max. |
| CDM1005 |
1.0ns ±50ps |
150ps Max. |
3GHz Typ. |
3GHz Typ. |
2.4GHz Min. |
3.5 W Max. |
| CDM1105 |
1.1ns±55ps |
Design in progress, Sample:1Q-2008 |
| CDM1205 |
1.2ns±60ps |
Design in progress, Sample:1Q-2008 |
| CDM1305 |
1.3ns±65ps |
Design in progress, Sample:1Q-2008 |
| CDM1405 |
1.4ns±70ps |
Design in progress, Sample:1Q-2008 |
| CDM1505 |
1.5ns±75ps |
220ps Max. |
2GHz Typ. |
2GHz Typ. |
1.6GHz Min. |
4.0 W Max. |
| CDM1605 |
1.6ns±80ps |
240ps Max. |
1.8GHz Typ. |
1.8GHz Typ. |
1.5GHz Min. |
4.5 W Max. |
| CDM1805 |
1.8ns±90ps |
Design in progress, Sample:1Q-2008 |
| CDM2005 |
2.0ns ±100ps |
300ps Max. |
1.5GHz Typ. |
1.5GHz Typ. |
1.2GHz Min. |
5.0 W Max. |
| CDM2505 |
2.5ns ±125ps |
360ps Max. |
1.2GHz Typ. |
1.2GHz Typ. |
960MHz Min. |
5.0 W Max. |
| CDM3005 |
3.0ns ±150ps |
400ps Max. |
1.1GHz Typ. |
1.1GHz Typ. |
880MHz Min. |
5.0 W Max. |
(1)* Actual (1) is the typical value when utilizing land pattern #1.
(2)* Actual (2) is the prospective value when utilizing land pattern #2, derived from EM Simulation.
(3)* The guaranteed value of -3dB passband is limited by the band width of the pin probe during product inspection.
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Characteristics of CDKD 2-Line Connection on land pattern #2 (For reference only.)
| Part Number |
Delay Time |
Rise/Fall Time (4)*
(20-80%) |
-3 dB Passband
Actual(4)* |
DC
Resistance |
| CDKD2005 (2 Line Connection) |
4.0±0.2 ns |
0.3ns Typ. |
750MHz Typ. |
10.0 W Max. |
| CDKD2505 (2 Line Connection) |
5.0±0.25 ns |
0.4ns Typ. |
600MHz Typ. |
10.0 W Max. |
| CDKD3005 (2 Line Connection) |
6.0±0.3 ns |
0.5ns Typ. |
500MHz Typ. |
10.0 W Max. |
| CDKD3505 (2 Line Connection) |
Design in progress, Sample:1Q-2008 |
| CDKD4005 (2 Line Connection) |
8.0±0.4 ns |
0.8ns Typ. |
300MHz Typ. |
15.0 W Max. |
| CDKD4505 (2 Line Connection) |
Design in progress, Sample:1Q-2008 |
| CDKD5005 (2 Line Connection) |
10.0±0.5 ns |
1.0ns Typ. |
200MHz Typ. |
15.0 W Max. |
(4)* Rise/Fall time and -3dB passband for 2-line connection use are only reference values, as the CDKD-series is inspected and guaranteed as a differential Delay Line.
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Package Dimensions & Pin Configuration
Unit:mm(inch)
Tolerance:±0.1(±0.004)
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Part Number |
Dimension of T |
| CDM0105~CDM0505 |
1.0Max(0.039Max) |
| CDM0605~CDM2005 |
2.0Max(0.079Max) |
| CDM2505, CDM3005 |
2.5Max(0.098Max) |
Printable Version - High Resolution PDF
Packaging of components can be in Tape and Reel for convenience of shipping and storage. The package is embossed with cover tape and contains 500pcs per reel, as shown below. The reel is marked with supplier name, part number, quantities, and lot number.
Unit:mm (inch)
Tolerance:±0.1(±0.004)
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Part Number
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Dimension of T |
| CDM0105~CDM0505 |
1.0(0.039) |
| CDM0605~CDM3005 |
2.4(0.094) |
Printable Version - High Resolution PDF
Unit:mm (inch)
Tolerance:±0.1(±0.004)
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Suggested Land Pattern
Unit:mm(inch)
Tolerance:±0.1(±0.004)
(1) Land Pattern #1 (CDM only)
Printable Version - High Resolution PDF
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(2) Land Pattern #2 (CDM/CDKD common land)
Printable Version - High Resolution PDF
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Conditions for 50Ω Line
Line width: 0.76mm(0.03inch)
Line thickness: 10～55μm
PWB εr: 4.0
Distance from GND plane: 0.4mm
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(3) CDM-type mounting configuration, land pattern #2
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Top View
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Pad Position
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Solder Paste Mask
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(4) CDKD-type mounting configuration for 2-Line Connection,
land pattern #2
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Top View |
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Pad Position
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Solder Paste Mask
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RoHS Compliance Status
1. Compliance StatusCompleted.
2. Terminal Plating
External: 100% Au
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