STW81103 Просмотр технического описания (PDF) - STMicroelectronics

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STW81103

Multi-band RF frequency synthesizer with integrated VCOs

STMicroelectronics 

Electrical specifications

2.3

Digital logic levels

Table 4. Digital logic levels

Symbol

Parameter

Vil

Vih

Vhyst

Vol

Voh

Low-level input voltage

High-level input voltage

Schmitt trigger hysteresis

Low-level output voltage

High-level output voltage

Test conditions

Min.

Typ.

0.8*Vdd

0.8

0.85*Vdd

STW81103

Max.

0.2*Vdd

0.4

Units

V

V

V

V

V

2.4

Electrical specifications

All electrical specifications are intended for a 3.3 V supply voltage.

Table 5.

Symbol

l

Electrical specifications

Parameter

Condition

Min. Typ.

Output frequency range

FOUTA

FOUTB

Output frequency range with

VCOA

Direct output

Divider by 2

Divider by 4

Output frequency range with

VCOB

Direct output

Divider by 2

Divider by 4

VCO dividers

N

VCO divider ratio

Prescaler 16/17

Prescaler 19/20

Reference clock and phase frequency detector

Fref

R

FPFD

Reference input frequency

Reference input sensitivity(1)

Reference divider ratio

PFD input frequency

FSTEP Frequency step(2)

Prescaler 16/17

Prescaler 19/20

2500

1250

625

4350

2175

1087.5

256

361

10

0.35

1

2

FOUT/

65551

FOUT/

77836

Max. Unit

3050

1525

762.5

5000

2500

1250

MHz

MHz

MHz

MHz

MHz

MHz

65551

77836

200

1.5

1023

16

FOUT/

256

FOUT/

361

MHz

Vpeak

MHz

Hz

Hz

10/53

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