ASNT6161-KMM

Analog Signal Selector 1-of-4

DC to 17GHz broadband operation
Four differential CML-type input ports and one differential CML-type output port
Temperature-stabilized differential gain of approximately 0dB
1dB compression point of 0dBM
DC-to-1GHz broadband channel selector ports
Low jitter and limited temperature variation over industrial temperature range
Show all features
Frequency (min): DC
Frequency (max): 17 GHz
Power: 2100 mW
Package: 44-pin CQFP
Price: Request

Product Details

asnt6161-desc

Fig. 1 Functional Block Diagram

The temperature stable ASNT6161-KMM analog signal selector 1-of-4 is intended for use in high-speed systems. The IC shown in Fig. 1 can deliver one of four different broad-band analog differential signals d0p/d0n, d1p/d1n, d2p/d2n, and d3p/d3n to its differential output qp/qn with a nominal gain of 0dB. The gain can be fine-tuned using the 4-pin control port gncrl0/1/2/3 with accuracy of 0.5dB as shown in Table 1.

gncrl3

gncrl2

gncrl1

gncrl0

Gain, dB

0

0

0

0

-2.0

0

0

0

1

-1.5

0

0

1

0

-1.0

0

0

1

1

-0.5

0

1

0

0

0.5

0

1

0

1

1.0

0

1

1

0

1.5

0

1

1

1

2.0

1

X

X

X

0

Table 1. Gain Control

The active input selection 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 selection logic is shown in Table 2.

sel1

sel2

Input connected to output

0

0

d0

0

1

d1

1

0

d2

1

1

d3

Table 2. Channel Selection

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.