CXA1999N General Description
The CXA1999N is a low current consumption FM IF amplifier which employs the newest bipolar process. It is suitable for M-ary FSK pagers.
CXA1999N Maximum Ratings
• Supply voltage VCC . . . . . . . . . . . . . . . . . .. . . . . . . .7.0 V
• Operating temperature Topr . . . . . . . . . .20 to +75 °C
• Storage temperature Tstg. . . . . . . . . . .65 to +150 °C
• Allowable power dissipation PD . . . . . . . . . . . . . 375 mW
CXA1999N Features
• Low current consumption: 1.16 mA (typ. at VCC = 1.4 V)
• Low voltage operation: VCC = 1.1 to 4.0 V
• Small package 20-pin SSOP
• Second mixer and oscillator
• Needless of IF decoupling capacitor
• Reference power supply for operational amplifier and comparator
• IF input, VCC standard
CXA1999N Typical Application
• M-ary FSK pagers
• Double conversion pagers
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