TDA7529_11 Datasheet, PDF (24/61 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 mV
-
-
mV
-
400
mV
-
-
kΩ
-
-
kΩ
-
1000 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
Reference divider R – integer values
21bit (32/33 pre scaler)
992
- 2097151
-
N_R
divider value divider_R
8 bit
1
-
255
-
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Doc ID 13311 Rev 4