DescriptionThe M54956P is a kind of single-chip semiconductor integrated circuit. It includes a PLL frequency synthesizer for personal radio. The typical applications include personal radios, mobile radio telephone and MAC equipment. There are some features of M54956P: (1)built-in 1/258 modulus p...
M54956P: DescriptionThe M54956P is a kind of single-chip semiconductor integrated circuit. It includes a PLL frequency synthesizer for personal radio. The typical applications include personal radios, mobile...
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The M54956P is a kind of single-chip semiconductor integrated circuit. It includes a PLL frequency synthesizer for personal radio. The typical applications include personal radios, mobile radio telephone and MAC equipment.
There are some features of M54956P: (1)built-in 1/258 modulus prescaler (fmax=1.0 GHz); (2)low power dissipation (ICC=40 mA, at VCC=5 V); (3)choice of four comparator frequency types (50k, 25k, 12.5k, 6.25k); (4)wide variety of division ratio (32768 to 262142, binary code); (5)1/8 clock pulse output for reference oscillator frequency (TTL level); (6)output display for PLL lock/unlock; (7)output port status can be set by date transferred from the controller; (8)serial data input (three data transfer lines).
The following is the maximum ratings of M54956P: (1)VCC, supply voltage: -0.5 to 6.0 V; (2)VI, input voltage at each input: -0.5 to 6.0 V; (3)VO, output voltage at each input: -0.5 to 6.0 V; (4)Pd, power dissipation at TA=75: 500 mW max; (5)Topr, operating temperature: -20 to +75; (6)Tstg, storage temperature: -40 to +125.