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. It is a RoHS-compliant component.
Care and Handling of LTCC Products
| Impedance: |
50 W ±10%
|
| 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 |
|
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. |
DC～15GHz |
DC～3GHz |
DC～3GHz |
1.0 W Max. |
| CDM0205 |
200ps ±50ps |
100ps Max. |
DC～10GHz |
DC～3GHz |
DC～3GHz |
1.0 W Max. |
| CDM0305 |
300ps ±50ps |
100ps Max. |
DC～10GHz |
DC～3GHz |
DC～3GHz |
1.0 W Max. |
| CDM0405 |
400ps ±50ps |
100ps Max. |
DC～7.5GHz |
DC～3GHz |
DC～3GHz |
1.5 W Max. |
| CDM0505 |
500ps ±50ps |
100ps Max. |
DC～6GHz |
DC～3GHz |
DC～3GHz |
1.5 W Max. |
| CDM0605 |
600ps ±50ps |
100ps Max. |
DC～5GHz |
DC～3GHz |
DC～3GHz |
3.0 W Max. |
| CDM0705 |
700ps ±50ps |
110ps Max. |
DC～4.3GHz |
DC～3GHz |
DC～3GHz |
3.0 W Max. |
| CDM0805 |
800ps ±50ps |
120ps Max. |
DC～3.8GHz |
DC～3GHz |
DC～3GHz |
3.0 W Max. |
| CDM0905 |
900ps ±50ps |
130ps Max. |
DC～3.3GHz |
DC～3GHz |
DC～2.7GHz |
3.5 W Max. |
| CDM1005 |
1.0ns ±50ps |
150ps Max. |
DC～3GHz |
DC～3GHz |
DC～2.4GHz |
3.5 W Max. |
| CDM1205 |
1.2ns ±60ps |
180ps Max. |
DC～2.5GHz |
DC～2.5GHz |
DC～2GHz |
4.0 W Max. |
| CDM1305 |
1.3ns ±65ps |
190ps Max. |
DC～2.3GHz |
DC～2.3GHz |
DC～1.9GHz |
4.5 W Max. |
| CDM1405 |
1.4ns ±70ps |
210ps Max. |
DC～2.1GHz |
DC～2.1GHz |
DC～1.7GHz |
4.5 W Max. |
| CDM1505 |
1.5ns±75ps |
220ps Max. |
DC～2GHz |
DC～2GHz |
DC～1.6GHz |
4.0 W Max. |
| CDM1605 |
1.6ns±80ps |
240ps Max. |
DC～1.8GHz |
DC～1.8GHz |
DC～1.5GHz |
4.5 W Max. |
| CDM1805 |
1.8ns ±90ps |
270ps Max. |
DC～1.7GHz |
DC～1.7GHz |
DC～1.3GHz |
4.5 W Max. |
| CDM2005 |
2.0ns ±100ps |
300ps Max. |
DC～1.5GHz |
DC～1.5GHz |
DC～1.2GHz |
5.0 W Max. |
CDM2505 |
2.5ns ±125ps |
360ps Max. |
DC～1.2GHz |
DC～1.2GHz |
DC～960MHz |
5.0 W Max. |
| CDM3005 |
3.0ns ±150ps |
400ps Max. |
DC～1.1GHz |
DC～1.1GHz |
DC～880MHz |
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.
|
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. |
DC～750MHz |
10.0 W Max. |
| CDKD2505 (2 Line Connection) |
5.0±0.25 ns |
0.4ns Typ. |
DC～600MHz |
10.0 W Max. |
| CDKD3005 (2 Line Connection) |
6.0±0.3 ns |
0.5ns Typ. |
DC～500MHz |
10.0 W Max. |
| CDKD3505 (2 Line Connection) |
7.0±0.35 ns |
0.65ns Typ. |
DC～350MHz |
12.0 W Max. |
| CDKD4005 (2 Line Connection) |
8.0±0.4 ns |
0.8ns Typ. |
DC～300MHz |
15.0 W Max. |
| CDKD4505 (2 Line Connection) |
9.0±0.45 ns |
0.9ns Typ. |
DC～250MHz |
15.0 W Max. |
| CDKD5005 (2 Line Connection) |
10.0±0.5 ns |
1.0ns Typ. |
DC～200MHz |
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.
|
Unit:mm(inch)
Tolerance:±0.1(±0.004)
|
Part Number |
Dimension of T |
| CDM0105~CDM0505 |
1.0Max(0.039Max) |
| CDM0605~CDM2005 |
2.0Max(0.079Max) |
| CDM2505, CDM3005 |
2.5Max(0.098Max) |
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)
|
|
|
|
Part Number
|
Dimension of T |
| CDM0105~CDM0505 |
1.0(0.039) |
| CDM0605~CDM3005 |
2.4(0.094) |
Unit:mm (inch)
Tolerance:±0.1(±0.004)
|
|
Unit:mm(inch)
Tolerance:±0.1(±0.004)
(1) Land Pattern #1 (CDM only)
|
(2) Land Pattern #2 (CDM/CDKD common land)
|
|
Conditions for 50Ω Line
Line width: 0.76mm(0.03inch)
Line thickness: 10～55μm
PWB εr: 4.0
Distance from GND plane: 0.4mm
|
(3) CDM-type mounting configuration, land pattern #2
|
Top View
|
|
Pad Position
| |
Solder Paste Mask
|
|
|
(4) CDKD-type mounting configuration for 2-Line Connection,
land pattern #2
|
|
Top View |
|
Pad Position
| |
Solder Paste Mask
|
|
 |
Storage conditions are as per MSL1. These component families are not moisture-sensitive. Baking prior to reflow is not required.
J-STD-020C Pb-Free Standard
|
(1) Analog circuit
|
r: Signal Source Impedance
Rin: Input Adjustment Resistance
Zo: Characteristic Impedance of Internal
Elements (=Output Impedance)
Ro:Internal Adjustment Resistance (=Zo)
r+Rin=Zo=R
|
(2) PECL
|
(3) LVPECL
|
(4) TTL/CMOS
Ro should be adjusted to a value near Zo.
|
|
|
|
0.5ns CDM0505, Land Pattern #1 |
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(1GHz Clock)
|
|
Group Delay
|
 |
|
 |
1ns CDM1005, Land Pattern #1
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(1GHz Clock)
|
|
Group Delay
|
 |
|
 |
2ns CDM2005, Land Pattern #1
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(500MHz Clock)
|
|
Group Delay
|
 |
|
 |
3ns CDM3005, Land Pattern #1
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(333MHz Clock)
|
|
Group Delay
|
 |
|
 |
4ns CDKD2005 (2 Line Connection) , Land Pattern #2
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(250MHz Clock)
|
|
Group Delay
|
 |
|
 |
6ns CDKD3005 (2 Line Connection) , Land Pattern #2
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(167MHz Clock)
|
|
Group Delay
|
 |
|
 |
10ns CDKD5005 (2 Line Connection) , Land Pattern #2
|
Output waveform
(Step function)
|
|
S21 Amplitude/Frequency
|
 |
|
 |
Output waveform
(100MHz Clock)
|
|
Group Delay
|
 |
|
 |
Initially developed only as a RoHS-compliant component.
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