Applications

• Base stations

• Wireless and RF data

• Wireless local loop gain control circuits

Features

• Broadband operation: 0.7 to 4.0 GHz

• Attenuation: 15.5 dB

• LSB attenuation: 0.5 dB

• Low insertion loss: 1 dB @ 900 MHz

• Positive voltage operation: 5 V

• Integrated silicon serial-to-parallel driver

• Small, QFN (24-pin, 4 x 4 mm) package (MSL1, 260 °C per

JEDEC J-STD-020)

Description

The SKY12349-362LF is a GaAs FET five-bit digital attenuator I/C

with a serial-to-parallel driver. The device is provided in a

4 x 4 mm, 24-pin Quad Flat No-Lead (QFN) package.

The SKY12349-362LF is particularly suited for applications in

which high attenuation accuracy, low insertion loss, and low

intermodulation products are required.

A functional block diagram is shown in Figure 1. The pin

configuration and package are shown in Figure 2. Signal pin

assignments and functional pin descriptions are provided in

Table 1.