SKY12323-303LF Datasheet | Skyworks Solutions

.Data Sheet.co.kr DATA SHEET SKY12323-303LF: Ga As Digital Attenuator 500 MHz- 3 GHz 5 Bits, 1 d B LSB Features Broadband: 500 MHz- 3 GHz - Attenuation range: 31 d B - Least significant bit attenuation: 1 d B - Low insertion loss: 1.4 d B @ 900 MHz - Single positive control voltage: 2.7- 5.5 V - Low current consumption: <100 µA @ 3 V - Small MSOP-10 package with exposed paddle - Available lead (Pb)-free and Ro HS-pliant MSL-1 @ 260 °C per JEDEC J-STD-020 - Functional Block Diagram RF Input/Output V1 V2 V3 V4 1 d B 2 d B 4 d B 8 d B V5 16 d B Applications Transceiver transmit automatic level control or receive automatic gain control in GSM, CDMA, WCDMA, WLAN, Bluetooth®, Zigbee®, land mobile radio base stations or terminal equipment - General purpose signal attenuation in telemunications and instrumentation applications - RF Input/Output Description The SKY12323-303LF is a monolithic Ga As, binary-weighted, 5-bit, single positive control voltage digital attenuator which operates from 500 MHz- 3 GHz. The attenuator has a least significant bit (LSB) of 1 d B and total attenuation of 31 d B. The two RF ports are bilateral; each can be used as the RF input or the RF output. This attenuator requires an external supply voltage of 2.7- 5.5 V The SKY12323-303LF is prised of five fixed attenuators in cascade, each of which having a shunt bypass switch. Beginning at the LSB, which is 1 d B, each succeeding fixed attenuator produces twice the attenuation of the preceding stage. The state of each bypass switch is controlled by the logic level voltage applied to the associated control voltage input; a logic high voltage closes the associated switch, thereby bypassing that fixed attenuator stage, and a logic low opens the switch to force the input signal to that stage through the associated attenuator. DC power consumption is very low, 100 µA maximum with control voltage and supply voltage of 3 V. The switch can operate over the temperature range of -40 C to +85 C. An...