STW81102ATR datasheet(12/43 Pages) STMICROELECTRONICS

12 / 43 page

Electrical specifications

STW81102

12/43

2.5

Phase noise specification

Table 6.

Phase noise specification

Parameter

Test conditions

Min

Typ

Max

Unit

PHASE NOISE PERFORMANCE(1)

In Band Phase Noise Floor – Closed Loop(2)

Normalized In Band Phase Noise

Floor

ICP=4mA, PLL BW = 50KHz;

including reference clock

contribution

-222

dBc/Hz

In Band Phase Noise Floor

Direct Output

ICP=4mA, PLL BW = 50KHz;

including reference clock

contribution

-222+20log(N)+10log(fPFD)dBc/Hz

In Band Phase Noise Floor

Divider by 2

-228+20log(N)+10log(f

PFD)dBc/Hz

In Band Phase Noise Floor

Divider by 4

-234+20log(N)+10log(fPFD)dBc/Hz

PLL Integrated Phase Noise – Direct Output

Integrated Phase Noise

100Hz to 40MHz

FOUT = 4.3 GHz,

fPFD = 200KHz, fSTEP =200 KHz,

PLL BW = 15KHz, ICP=4mA

-35

dBc

1.4

° rms

PLL Integrated Phase Noise – Divider by 2

Integrated Phase Noise

100Hz to 40MHz

FOUT = 2.15 GHz,

fPFD = 400KHz, fSTEP =200 KHz,

PLL BW = 20KHz, ICP=3mA

-44

dBc

0.52

° rms

PLL Integrated Phase Noise – Divider by 4

Integrated Phase Noise

100Hz to 40MHz

FOUT = 1.075 GHz,

fPFD = 800KHz, fSTEP =200 KHz,

PLL BW = 30KHz, ICP=2.5mA

-51

dBc

0.22

° rms

VCO A Direct (3000MHz-3620MHz) – Open Loop(3)

Phase Noise @ 1 KHz

-56

dBc/Hz

Phase Noise @ 10 KHz

-83

dBc/Hz

Phase Noise @ 100 KHz

-107

dBc/Hz

Phase Noise @ 1 MHz

-129

dBc/Hz

Phase Noise @ 10 MHz

-149

dBc/Hz

Phase Noise @ 40 MHz

-159

dBc/Hz

VCO B Direct (4000MHz-4650MHz) – Open Loop(3)

Phase Noise @ 1 KHz

-54

dBc/Hz

Phase Noise @ 10 KHz

-82

dBc/Hz

Phase Noise @ 100 KHz

-106

dBc/Hz

Phase Noise @ 1 MHz

-128

dBc/Hz

Phase Noise @ 10 MHz

-148

dBc/Hz

Phase Noise @ 40 MHz

-158

dBc/Hz

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