TA31149AFN

The TA31149AFN is one member of the TA31149 family which is designed as the 4-level frequency-shift keying (FSK) compatible IF detector IC for pagers. This device contains a 4-level FSK comparator and a bit rate filter switch. Also this device, which operates at low voltage, incorporates a battery alarm and RF regulator, reducing the number of external components.

Features of the TA31149AFN are:(1)mixer operating frequency range: 10 to 50 MHz;(2)operating voltage range: 1.1 to 3.5 V;(3)current dissipation: 1.5 mA (typ.);(4)current dissipation at BS: 0 uA (typ.);(5)small package: SSOP 24 PIN (0.65 mm pitch).

The absolute maximum ratings of the TA31149AFN can be summarized as:(1)power supply voltage: 4 V;(2)power dissipation: 760 mW;(3)operating temperature: -30 to +85 ;(4)storage temperature: -55 to +150 . And the electrical characteristics of the TA31149AFN can be summarized as:(1)operating voltage range: 1.1 to 3.5 V;(2)quiescent current consumption: 1.5 to 1.9 mA;(3)current consumption at BS: 0 to 5 uA;(4)mixer conversion gain: 7.5 to 14 dB;(5)mixer intercept point: 96 dBuV;(6)mixer input resistance:2 k;(7)limitting sensitivity: 24 to 27 dBuVEMF;(8)FSK output duty ratio: 40 % to 60 %. If you want to know more information such as the electrical characteristics about the TA31149AFN, please download the datasheet in www.seekic.com or www.chinaicmart.com.