TDA7529_11 datasheet(24/61 Pages) STMICROELECTRONICS

24 / 61 page

Electrical specifications

TDA7529

24/61

Doc ID 13311 Rev 4

4.7

VCO

4.8

Reference frequency input buffer

4.9

Dividers

Table 14.

VCO

Symbol

Parameter

Test condition, comments

Min

Typ

Max

Units

Frequency range VCO

±8% tuning range

3430

4010

MHz

Phase Noise of LO

Free running VCO; values

referred @ 100MHz

@ 10 Hz

@ 100 Hz

@ 1 kHz

@ 10 kHz

-46

-76

-103

-40

-60

-86

-106

-dBc/Hz

-Deviation error

FM reception, de-emphasis

50µs, fNF=20Hz...20kHz @

min. VCO frequency

-8

Table 15.

Reference frequency input buffer

Symbol

Parameter

Test condition, comments

Min

Typ

Max

Units

Reference frequency input buffer mode

Max input voltage high

1475

Min. input voltage low

925

Input differential voltage

200

400

Input impedance (xtal mode) -

150

Input impedance (lvds mode) -

Input voltage range

Single ended mode

200

1000

mVPP

Table 16.

Dividers

Symbol

Parameter

Test condition, comments

Min

Typ

Max

Units

Mixer divider V – integer values

divider value divider_V

7 bit

131

Divide by 4 – generation of 0°/90°/-90° LO signal for IMR

I/Q phase error of divider

phase calibration in IMR

-0.5

0.5

DEG

Main divider N – integer divider

divider value divider_N

21bit (32/33 pre scaler)

992

2097151

Reference divider R – integer values

divider value divider_R

8 bit

255

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