http : //www.wenshing.com.tw ; http://www.rf.net.tw rws - 374 data s heet p. 1 wenshing ?? r ws - 374 rf module series wireless hi sensitivity receiver module (rf ask) ver sion history version date changes v1.01 mar . 7 , 200 4 1 st . edition v1.02 jul .2 , 200 8 2 nd . edition
http : //www.wenshing.com.tw ; http://www.rf.net.tw rws - 374 data s heet p. 2 mo del : rws - 374 - 4 ? frequency range : 3 18 mhz ? modulate mode: ask ? circuit shape: lc ? date rate: 4800 bps ? selectivity: - 10 8 db m ? channel spacing: 500khz ? supply voltage: 5v ? high s ensitivity p assive d esign ? simple t o a pply with l ow e xternal c ount electrical character istic characteristic sym min typ e max unit operating radio frequency fc 3 17.500 3 18.000 3 18.500 mhz sensitivity pref. - 106 - 108 - 1 10 dbm channel width - 500 + 500 khz noise equivalent bw neb 5 4 baseboard data rate 3 kb/s receiver tu rn on time 3 ms dc characteristic symbol parameter condition min typ e max unit vcc operating supply voltage 4.9 5 5.1 i tot operating supply voltage 4.5 v data data out 1 data= +20 0ua ( high ) vcc - 0.5 vcc v 1 data= - 10ua (low) 0.3 v
http : //www.wenshing.com.tw ; http://www.rf.net.tw rws - 374 data s heet p. 3 size pin assignment pin function 1 gnd 2 digital output 3 linear out 4 vcc 5 vcc 6 gnd 7 gnd 8 ant ( a bout 13cm )
http : //www.wenshing.com.tw ; http://www.rf.net.tw rws - 374 data s heet p. 4 demo c ircuit
|
