ASNT6162-KMM


ASNT6162-KMM View full size
  • DC to 24GHz broadband operation
  • Two differential CML-type input ports and two differential CML-type output ports
  • Temperature-stabilized differential gain of approximately 0dB
  • 1dB compression point of 0dBm
  • DC-to-1GHz broadband channel selector port
  • Low jitter and limited temperature variation over industrial temperature range
  • Single +4.5V or -4.5V power supply
  • Power consumption: 1.26W
  • Fabricated in SiGe for high performance, yield, and reliability
  • Custom CQFP 44-pin package

Function Operating Frequency Power, mW Package
Linear Non-Blocking Cross-Switch 2x2 DC-24 GHz 1260 44-pin CQFP

DESCRIPTION

Fig. 1 Functional Block Diagram

The temperature stable ASNT6162-KMM linear non-blocking cross-switch is intended for use in high-speed systems. The IC shown in Fig. 1 can deliver two different broad-band analog differential signals d0p/d0n and d1p/d1 to two differential outputs q0p/q0n and q1p/q1n with a nominal gain of 0dB. The gain can be fine-tuned using the 3-pin control port gncrl0/1/2 with accuracy of 0.5dB as shown in Table 1.

 

Table 1. Gain Control

gncrl2

gncrl1

gncrl0

Gain, dB

0

0

0

-1.0

0

0

1

-0.5

0

1

0

-0.5

0

1

1

0

1

0

0

0.5

1

0

1

0.5

1

1

0

1.0

1

1

1

1.0

The assignment of inputs to outputs is performed through the external high-speed dual port sel1/sel2 that can be referenced to either vcc or vee depending on the state of the single-ended control signal lvlcrl. The assignment logic is shown in Table 2.

 

Table 2. Channel Selection

sel1

sel2

Input connected to q0

Input connected to q1

0

0

d0

d0

0

1

d0

d1

1

0

d1

d0

1

1

d1

d1

The part’s I/Os support CML-type differential interface with on-chip 50Ohm termination to vcc, and may be used differentially, AC/DC coupled, single-ended, or in any combination (see POWER SUPPLY CONFIGURATION). In the DC-coupling mode, the input signal’s common mode voltage should comply with the specifications shown in ELECTRICAL CHARACTERISTICS. 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. In particular, the specified output common-mode voltage level is guaranteed only in case of external single-ended 50Ohm DC termination to vcc.

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