UPD3140GS Description
µPD3140GS is a dual PLL frequency synthesizer LSI designed for cordless telephones and portable cellular radio. This LSI is manufactured using 13 GHz fT BiCMOS process and integrated 2 pairs of prescaler + PLL operate from 80 MHz to 550 MHz. This LSI realizes low power consumption:.
UPD3140GS Key Features
- Supply voltage: VCC1 = VCC2 = 1.8 to 5.5 V
- Input operating frequency: fin = 80 MHz to 550 MHz (PLL 1ch, 2ch in mon)
- Reference oscillating frequency fref = 30 MHz MAX.. Built-in high-speed reference oscillator signal can be taken out fro
- Built-in power-save function: control 2 prescaler’s ON/OFF operation individually
- Low power consumption: Dual operation (both ch ON): ICC OP2 = 4.3 mA
- Decreased lockup time available: charge pump switch control (lockup time: 9 ms @ fstep = 12.5 kHz, 1 MHz swing, decrease
- Lock phase sensitivity programmable: Phase difference allowance for lock up can be controlled as 4 stages (150 ns to 5
- Pins and counter data are patible to µPD2844BGS (except option data)
- High-density surface mounting: 20-pin plastic SSOP
- To order evaluation sample, please contact your local NEC sales office (Order number : µPD3140GS)