The SR1018B is a dual‑channel frequency synthesizer supporting up to 1.3 GHz with a 2.2‑5.5 V supply.
The SR1018B is a dual‑channel frequency synthesizer that can generate frequencies up to 1.3 GHz. It operates from a 2.2 V to 5.5 V supply and includes two pre‑division stages, three programmable dividers, two phase‑frequency detectors, two current‑adjustable charge pumps, a low‑noise Colpitts crystal oscillator, and a 3‑line serial interface (DATA, CLK, EN).
The manual provides a functional description, pin assignments, electrical characteristics, programming procedures, lock‑detection behavior, standby modes, and example applications. The device is supplied in a 16‑TSSOP package and is intended for cordless phones, walkie‑talkies, wireless headsets, microphones, remote‑control and other wireless communication systems. This manual is written in Chinese.
| Frequency range | 10 MHz ~ 1.3 GHz |
|---|---|
| Supply voltage | 2.2 V ~ 5.5 V |
| Current consumption (500 MHz) | 6 mA @ 3.3 V |
| Current consumption (1 GHz) | 9 mA @ 5.5 V |
| Package | 16‑TSSOP |
| Operating temperature | -40 °C ~ 85 °C |
The device can generate frequencies up to 1.3 GHz.
It provides two independent frequency synthesis channels.
A 3‑line serial interface (DATA, CLK, EN) is used.
The chip is supplied in a 16‑TSSOP package.