Designe in progress VDH-Type BGA Differential Variable Delay Line Features Small Foot Print 6.3mm×6.3mm 30ps Continuous Variable Range Differential 100W In/Out Impedance 15GHz (Typ.) Band Width Compatible with CDKF Pin Configuration Suitable for Interpolation of CDKF Incremental Steps It is examining it the sample shipment time. Specifications (Provisional) Part Number: VDH-F30 Variable Delay Time Range: 30ps±5ps Incremental Resolution: 1ps or less, Continuously Inherent Delay Time: 65ps±10ps Inter-line Delay Difference: 5ps Max Output Rise Time(20%-80%): 35ps Max In/Out Impedance: Single-ended 50W±10% Differential 100W±10% -3dB Pass band: 15GHz Typ., 10GHz Min. Temperature Coefficient: 0~200ppm/deg. C Insulation Resistance: DC 50V, over 100MW Operating Temperature Range: -15°C~+85°C Storage Temperature Range: -40°C~+120°C Outer Dimensions and Pin Configuration (Provisional) Unit:mm(inch) Tolerance:±0.1(±0.004) Printable Version - High Resolution PDF

VDH Type : Suggested land pattern (Provisional)

Unit:mm(inch)
Tolerance:±0.1(±0.004)

Characteristics of Prototype and EM Simulation

Measurements Circuit and Data Plot Procedure

(1) Minimum Delay

Sdd21 Amplitude-Frequency

Differential Group Delay

Sdd11 Return Loss

5GHz Clock Response ( Prototype )

(2) Maximum Delay

Sdd21 Amplitude-Frequency

Differential Group Delay

Sdd11 Return Loss

5GHz Clock Response ( Prototype)

Land Pattern Example for VDH-CDKF Connection

Unit:mm(inch)

Land Pattern Example for VDH-CDKD Connection

Unit:mm(inch)

Typical Applications and Termination Methods

(1) PECL

(2) LVPECL

(3) Twisted Pair Termination

(4) LVDS