DESCRIPTION
Additional functions as watchdog, clock output, output voltage and current control, preamble detection, time-out, band in use are included. Realized in Multipower BCDV technology that allows to integrate DMOS, Bipolar and CMOS structures in the same chip. s s s s s s s s BLOCK DIAGRAM DVdd AVdd DVss AVss TEST1 TEST2 TEST3 BU RxFo CD/PD CARRIER DETECTION TEST BU AGC RxD CLR/T PLL DIGITAL FILTER FSK DEMOD IF FILTER FILTER AMPL RAI SERIAL INTERFACE REG/DATA RxTx TxD FSK MODULATOR DAC TX FILTER ALC VOLTAGE CONTROL PLI Vsense ATO ATOP1 ATOP2 + VREG PAVcc Vdc PG XOut XIn WD TOUT RSTO MCLK ZCin ZCout C_OUT CMINUS CPLUS D03IN1407 FILTER CONTROL REGISTER CURRENT CONTROL CL REGOK OSC TIME BASE ZC OP-AMP September 2003 1/30 ST7538 PIN CONNECTION (Top view) REG_DATA C_MINUS REG_OK C_PLUS C_OUT TEST1 35 GND N.C. N.C. 44 43 42 41 40 39 38 37 36 N.C. 34 33 32 31 30 29 28 27 26 25 24 23 PG CD_PD DVSS RXD RxTx TXD GND TOUT CLR/T BU DVDD MCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 VDC RAI RXFO TEST2 VSENSE AVDD XIN XOUT SGND ATO CL RSTO TEST3 WD ZCOUT ZCIN N.C.
STMicroelectronics
