STC9492C

The STC9492C series is a bell 212a(high speed)/ccitt v.22 compatible,single chip ,1.200 bps cmos lsi for a psk modem.The buit-in additional function include answer and guard tones generation functions and a call progress tone detection function.

Features of the STC9492C are:(1)compatible with bell 212a (high speed),ccitt v.22; (2)buit-in tone generator (2,225Hz/2,100Hz/1,800Hz); (3)call progress tone detector on chip; (4)adaptive equalizer on chip; (5)4.032 MHz crystal oscillation:quartz oscillator and capacitors extermally connected ; (6)test function:analog loop-back test,digital remote loop-back test; (7)low power consumption:operation:120mW(Typ);power down:10W(Max); (8)input/output interface:CMOS level; (9)single power supply:5V+-10%; (10)package:28-pin (plastic)/28-pin SOP(plastic).

The absolute maximum ratings of the STC9492C can be summarized as:(1)supply voltage:7V; (2)input voltage:analog input:Vee-0.3 to Vcc+0.3V;digital input:Vss-0.3 to Vdd+0.3V; (3)power dissipation:500mW; (4)storage temperature:-65 to 150; (5)soldering temperature and time :260,10s (at lead).If you want to know more information such as the electrical characteristics about the BF904, please download the datasheet in www.seekic.com or www.chinaicmart.com.