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AK1542A - 20 to 600MHz Integer-N Frequency Synthesizer

Description

____________________________________________________________ 4 Absolute Maximum Ratings ___________________________________________________________ 6 Recommended Operating Range _______________________________________________________ 6 Electrical Characteristics _____________________________________

Features

  •   Operating frequency: Programmable charge pump current: 20 to 600MHz 158 to 2528A typical The charge pump current can be changed in 9 steps; and the current range can be adjusted by the external resistance. Two current settings can be specified with the register and switched over from one to another using the timer.     Supply Voltage: Separate power supply for the charge pump: On-chip power-saving features On-chip lock detection feature of PLL: 2.7 to 5.5 V (PVDD pin) PVDD to 5.5V.

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Datasheet Details

Part number AK1542A
Manufacturer AKM
File Size 754.32 KB
Description 20 to 600MHz Integer-N Frequency Synthesizer
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[AK1542A] AK1542A 20 to 600MHz Integer-N Frequency Synthesizer 1. Overview Consisting a highly accurate charge pump that supports current adjustment in 9 steps, a reference divider, a programmable divider and a dual-modulus prescaler (P/P+1), the AK1542A provides high performance, low consumption current and small footprint for a wide range of frequency conversions . This synthesizer also has two general-purpose output pins which allow it to be used to control the RF front end. An ideal Phase Locked Loop (PLL) can be achieved by combining the AK1542A with the external loop filter and VCO (Voltage Controlled Oscillator). Access to the registers is controlled via a 3-wire serial interface. The operating supply voltage is from 2.7 to 5.
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