This part is a kind of semiconductor called D5702.
Function of this product has UPD5702.
Manufacturers : CEL
Image and pinout :
Some of the text within the PDF file :
NEC's 2.4 GHz Si LD MOS POWER AMPLIFIER UPD5702TU FEATURES • MEDIUM OUTPUT POWER: POUT = +21 dBm TYP @PIN = -2 dBm, f = 2.45 GHz • ON CHIP OUTPUT POWER CONTROL FUNCTION • SINGLE SUPPLY VOLTAGE: VDS = 3.0 V TYP • PACKAGED IN 8 PIN L2MM (2.0 X 2.2 X 0.5mm) SUITABLE FOR HIGH- DENSITY SURFACE MOUNT INTERNAL BLOCK DIAGRAM Pout2 1 8 Pin2 Pout2 2 7 Pin2 GND 3 6 GND DESCRIPTION NEC's UPD5702TU is a silicon LD MOS IC designed for use as a power amplifier up to 2.4 GHz application. This IC consists of two stage amplifiers. The device is packaged in a low cost, surface mount 8 pin L2MM (Leadless Mini Mold) plastic package. Ideally suited for high density surface mount designs. NEC's stringent quality assurance and test procedures ensure the highest reliability a [ ... ]