Analog Signal Adjustable Delay

Broadband (DC-20GHz) tunable analog signal delay
Utilizes discrete and continuous phase adjustment mechanisms
Combined delay adjustment range of 12ps
Utilizes internal peaing control for bandwidth adjustment
Fully differential CML input interface
Single +3.3V or -3.3V power supply
Show all features
Frequency (min): DC
Frequency (max): 20 GHz
Power: 560 mW
Package: 24-pin CQFP
Price: Request

Product Details

Fig. 1 Functional Block Diagram

ASNT6170-KMC is a variable delay line for analog signals fabricated in SiGe technology. The IC shown in Fig. 1 provides an adjustable delay of its differential output signal outp/outn in relation to its broadband input signal inp/inn. The delay is controlled through a DC control switch tlcrl and a DC tuning port phcrl for fine adjustment. The DC tuning port pkcrl may be used to increase the part’s bandwidth at the cost of its delay range. The ports phcrl and pkcrl should be always connected to external voltage sources!

The part’s I/Os support the CML logic interface with on chip 50Ω termination to vcc and may be used differentially, AC/DC coupled, single-ended, or in any combination. In the DC-coupling mode, the input signal’s common mode voltage should comply with the specifications shown in the electrical characteristics section within the part’s datasheet. In the AC-coupling mode, the input termination provides the required common mode voltage automatically. The differential DC signaling mode is recommended for optimal performance.