PMB2349 データシートの表示（PDF） - Infineon Technologies

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PMB2349

Wireless Components Optimized RF/IF Dual PLL Frequency Synthesizer

Infineon Technologies 

Confidential

PMB 2349

preliminary

Reference

5.5.2 Typical Performance

VCP is intended to be within ∆VSNK and VPD−∆VSRC

System: standard GSM-application

RF: 900MHz, PD frequency: 200kHz, Vcc: 3.6V, TA.: -40...+85’C

Kvco: 10MHz/V, Icp: 4mA

Loopfilter (C1,R2-C2,R3,C3): 270pF,18kΩ-2.2uF,12kΩ,100pF

The following typical performance can be expected:

Table 5-24 Typical Performance

VCP-range #1 - LIBERAL ∆VSNK = 200mV ∆VSRC = 500mV

spurious suppression @200 kHz - better than -80 dB

phase noise @ 1kHz / 2V7 - typical 85 dBc/Hz

phase noise @ 1kHz / 3V6 - typical 88 dBc/Hz

VCP-range #2 - CONSERVATIVE ∆VSNK = 600mV ∆VSRC = 900mV

performance of VPD-range #1

CP current variation below +/-20%

5.6 Threshold Voltages of Schmitt-Trigger Input

Typical Vin Thresholds of 3W-Bus

1,32

1,22

1,12

1,02

0,92

0,82

2,5

3

3,5

4

4,5

5

VCC

typ. High min.

typ. Low max.

Wireless Components

5 - 15

Specification, May 2000

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