TDA7529 Datasheet, PDF (24/60 Pages) STMicroelectronics – RF front-end for AM/FM DSP car-radio with IF sampling

Electrical specifications
4.7
VCO
Table 14. VCO
Symbol
Parameter
Frequency range VCO
Phase Noise of LO
Deviation error
TDA7529
Test Condition, Comments
±8% tuning range
Free running VCO; values
referred @ 100MHz
@ 10 Hz
@ 100 Hz
@ 1 kHz
@ 10 kHz
FM reception, de-emphasis
50µs, fNF=20Hz...20kHz @
min. VCO frequency
Min
3430
-46
-76
-103
Typ
-40
-60
-86
-106
8
Max
4010
Units
MHz
dBc/Hz
Hz
4.8
Reference frequency input buffer
Table 15. Reference frequency input buffer
Symbol
Parameter
Test Condition, Comments Min
Reference frequency input buffer mode
Max input voltage high
Min. input voltage low
925
Input differential voltage
200
Input impedance (xtal mode)
150
Input impedance (lvds mode)
10
Input voltage range
Single ended mode
200
Typ
Max Units
1475
400
1000
mV
mV
mV
kΩ
kΩ
mV_PP
4.9
Dividers
Table 16. Dividers
Symbol
Parameter
Test Condition, Comments Min Typ
Max Units
Mixer divider V – integer values
N_V
divider value divider_V
7 bit
Divide by 4 – generation of 0°/90°/-90° LO signal for IMR
5
131
I/Q phase error of divider phase calibration in IMR
-0.5
0.5 DEG
Main divider N – integer divider
N_N
divider value divider_N
21bit (32/33 pre scaler)
992
Reference divider R – integer values
2097151
N_R
divider value divider_R
8 bit
1
255
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