TDA7786 datasheet(35/54 Pages) STMICROELECTRONICS

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TDA7786, TDA7786M

Electrical specifications

3.5

Overall system performance

3.5.1

FM overall system performance

Antenna level equivalence: 0 dBµV = 1 µVrms (Antenna terminal voltage with 75 Ω dummy

load).

Figure 19. FM input set-up

Input level referred to 75 Ω antenna dummy output. Frf = 98.1 MHz, Vrf = 60 dBµV, mono

modulation, fdev = 40 kHz, faudio =1 kHz audio. De-emphasis = 50 µs. Wide-band, not-tuned

pre-selection application, unless otherwise specified.

Table 26. FM overall system performance

Parameter

Test condition

Min

Typ

Max

Units

Tuning range FM Eu

(can be modified by the user)

(automatic FE alignment

available)

87.5

108

MHz

Tuning step FM Eu

(can be modified by the user)

100

kHz

Tuning range FM US

(can be modified by the user)

(automatic FE alignment

available)

87.5

107.9

MHz

Tuning step FM US

(can be modified by the user)

200

kHz

Tuning range FM Jp

(can be modified by the user)

(automatic FE alignment

available)

MHz

Tuning step FM Jp

(can be modified by the user)

100

kHz

Tuning range FM EEu

(can be modified by the user)

(automatic FE alignment not

available)

MHz

Tuning step FM EEu

(can be modified by the user)

100

kHz

Sensitivity

S/N = 26 dB

-6

-3

dBµV

S/N

@ 10 dBµV, no high-cut,

DISS BW = #4

Ultimate S/N

@ 60 dBµV, mono

@ 60 dBµV,

Deviation = 75 kHz, mono

@ 60 dBµV, stereo

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