TDA7705_10 datasheet(19/42 Pages) STMICROELECTRONICS

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TDA7705

Electrical specifications

Doc ID 15938 Rev 8

19/42

3.4.3

VCO

3.4.4

Phase locked loop

3.4.5

Tuning DAC

3.4.6

IF ADC

Table 9.

VCO

Symbol

Parameter

Test condition

Min

Typ

Max

Units

FVCO

Frequency range VCO

1100

1550

MHz

Phase noise of LO

Locked VCO;

values referred @ 100MHz

@ 100 Hz

@ 1 kHz

@ 10 kHz

-100

-115

-dBc/Hz

dev

Deviation error (rms)

FM reception, deemphasis

50µs, faudio = 20 Hz...20 kHz

-5

Table 10.

Phase locked loop

Symbol

Parameter

Test condition

Min

Typ

Max

Units

Tsettle

Settling time FM

Δf < 10 kHz

300

µs

FM step

FM frequency step

kHz

AM step

AM frequency step

500

Table 11.

Tuning DAC

Symbol

Parameter

Test condition

Min

Typ

Max

Units

Res

Resolution

8 bit

Voutmin

Min output voltage

0.6

0.7

Voutmax

Max ouput voltage

VCC-0.2

VCC-0.1

Rout

Output impdedance

1.5

2.5

3.5

DNL

Diff. Non linearity

0.5

LSB

Tconv

Conversion time

µs

Table 12.

IF ADC

Symbol

Parameter

Test condition

Min

Typ

Max

Units

DRFM

Dynamic range in FM

BW = ±200 kHz

VN,in FM

Input noise referred to mixer input

mixer 1

mixer 2

1.1

0.7

1.9

1.2

nV/

√Hz

DRAM

Dynamic range in AM

BW = ±4 kHz

103

VN,in AM

Input noise referred to mixer input

6.9

nV/

√Hz

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