TDA7546 datasheet(19/68 Pages) STMICROELECTRONICS

19 / 68 page

TDA7546

Electrical specification

19/68

Analog Inputs (pin 41)

VMPX

Input Range of MPX Signal

0.75

Vrms

Input Impedance of MPX pin

45k

55k

65k

Ohm

VREF1

Internal Reference Voltage

0.5

0.9

Internal Reference Impedance

1.3

VREF2

Internal Reference Voltage

1.5

2.1

Internal Reference Impedance

2.15

2.95

VREF3

Internal Reference Voltage

2.6

3.2

Internal Reference Impedance

1.3

2.0

PLL parameters

fvco

VCO Range

150

250

MHz

fvin

VCO Input Range

MHz

tlock

PLL Lock Time

500

μs

IDF

Input Divide Factor

ODF

Output Divide Factor

Integer Multiplication Factor

128

FRA

Fractional Multiplication Factor

FRA/214

214

I2C (@ fsys = 8.55/8.664MHz)

fI2C

clock frequency in I2C mode

400

KHz

SPI (@ fsys = 8.55/8.664MHz)

fSPI

clock frequency in SPI mode

MHz

tch

clock high time

450

tcl

clock low time

450

tcsu

chip select setup time

500

tcsh

chip select hold

500

todv

output data valid

250

toh

output hold

deselect time

1000

tsu

data setup time

200

data hold time

200

Table 8.

Electrical characteristics (continued)

(Tamb = -40 to +85 °C, VDDA/VDDD = 3.0 to 3.6 V,fosc = 10.25 MHz, unless otherwise specified

VDDD and VDDA must not differ more than 0.15V).

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

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