STW81101 datasheet(12/42 Pages) STMICROELECTRONICS

12 / 42 page

Electrical specifications

STW81101

12/42

In Band Phase Noise Floor

Direct Output

ICP=4mA, PLL BW = 50KHz;

including reference clock

contribution

-220+20log(N)+10log(fPFD)dBc/Hz

In Band Phase Noise Floor

Divider by 2

-226+20log(N)+10log(f

PFD)dBc/Hz

In Band Phase Noise Floor

Divider by 4

-232+20log(N)+10log(f

PFD)dBc/Hz

PLL Integrated Phase Noise – Direct Output

Integrated Phase Noise

100Hz to 40MHz

FOUT = 4 GHz,

fPFD = 400KHz, fSTEP =400 KHz,

PLL BW = 35KHz, ICP=4mA

-38

dBc

1.0

° rms

PLL Integrated Phase Noise – Divider by 2

Integrated Phase Noise

100Hz to 40MHz

FOUT = 2 GHz,

fPFD = 400KHz, fSTEP =200 KHz,

PLL BW = 35KHz, ICP=4mA

-44

dBc

0.5

° rms

PLL Integrated Phase Noise – Divider by 4

Integrated Phase Noise

100Hz to 40MHz

FOUT = 1 GHz,

fPFD = 400KHz, fSTEP =100 KHz,

PLL BW = 35KHz, ICP=4mA

-50

dBc

0.25

° rms

VCO A Direct (3300MHz-3900MHz) – Open Loop(3)

Phase Noise @ 1 KHz

-56

dBc/Hz

Phase Noise @ 10 KHz

-83

dBc/Hz

Phase Noise @ 100 KHz

-105

dBc/Hz

Phase Noise @ 1 MHz

-128

dBc/Hz

Phase Noise @ 10 MHz

-148

dBc/Hz

Phase Noise @ 40 MHz

-156

dBc/Hz

VCO B Direct (3800MHz-4400MHz) – Open Loop(3)

Phase Noise @ 1 KHz

-55

dBc/Hz

Phase Noise @ 10 KHz

-82

dBc/Hz

Phase Noise @ 100 KHz

-104

dBc/Hz

Phase Noise @ 1 MHz

-127

dBc/Hz

Phase Noise @ 10 MHz

-147

dBc/Hz

Phase Noise @ 40 MHz

-155

dBc/Hz

VCO A with divider by 2 (1650MHz-1950MHz) – Open Loop(3)

Phase Noise @ 1 KHz

-62

dBc/Hz

Phase Noise @ 10 KHz

-89

dBc/Hz

Phase Noise @ 100 KHz

-111

dBc/Hz

Phase Noise @ 1 MHz

-134

dBc/Hz

Table 6.

Phase noise specification (continued)

Parameter

Test conditions

Min

Typ

Max

Unit

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