CBA8472B

DESCRIPTION

The CBA8472B is a broadband 6-bit GaAs IC digital attenuators in low cost leadless surface mount packages. This single 

positive control line per bit digital attenuator incorporates off chip AC ground capacitors for near DC operation, making it 

suitable for a wide variety of RF and IF applications. Covering DC to 3.0 GHz, the insertion loss is less than 2 dB typical. 

The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is 

excellent at ± 0.3 dB typical step error with an IIP3 of +54 dBm. Six TTL/CMOS control inputs are used to select each 

attenuation state. A single Vdd bias of +5V is required. 

FEATURES

 0.5 dB LSB Steps to 31.5 dB

 Single Control Line Per Bit

 TTL/CMOS Compatible Control

 ±0.3 dB Typical Step Error

 Single +5V Supply

 Small QFN (24-pin, 4 x 4 mm) package (MSL3,

260°C per JEDEC J-STD-020)

APPLICATIONS

 Cellular; UMTS/3G Infrastructure

 ISM, MMDS, WLAN, WiMAX

 Microwave Radio & VSAT

 Test Equipment and Sensors

规格书CBA8472B 0