TDA7546 datasheet(16/68 Pages) STMICROELECTRONICS

16 / 68 page

Electrical specification

TDA7546

16/68

3.3.1

Additional parameters

ISS Filter Time Constant

I15

Charge current low mid

TISS, ISSCTL = 1

-74

μA

Charge current high mid

TISS, ISSCTL = 1

-80

-60

-40

μA

Charge current low narrow

TISS, ISSCTL = 1

-124

μA

Charge current high narrow

TISS, ISSCTL = 1

-140

-110

-80

μA

Discharge current low

TISS, ISSCTL = 0

0.5

μA

Discharge current high

TISS, ISSCTL = 0

μA

V15

Low voltage

ISSCTL = 0

0.1

0.2

High voltage

ISSCTL = 1

4.6

4.9

Guaranteed by design

Table 5.

Tuner (continued)

(Tamb = -40 to +85°C, VCC1 = VCC2 = VCC3 = VCCVCO = VCCMIX1 = VCCIF1=8.5V,

fRF = 98.1MHz, dev. = 40KHz, fMOD = 1KHz, fIF1 = 10.7MHz, fIF2 = 450KHz,

fXtal = 10.25MHz, in application circuit, unless otherwise specified.)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Table 6.

Additional parameters

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Output of Tuning Voltages (TV1,TV2)

VOUT

Output voltage

TVO

0.5

VCC3-

0.5

ROUT

Output impedance

21.5

Xtal Reference Oscillator

fLO

Reference frequency

CLoad = 15pF

10.25

MHz

CStep

Min. cap step

XTAL

0.75

Cmax

Max. cap

XTAL

23.25

Δf/f

Deviation versus VCC2

ΔV

CC2 = 1V

(1)

1.5

ppm/V

Δf/f

Deviation versus temp

-40°C < T < +85°C (1)

0.2

ppm/K

I2C-Bus interface

fSCL

Clock frequency

400

KHz

VIL

Input low voltage

VIH

Input high voltage

2.5

IIN

Input current

-5

μA

Output acknowledge voltage

IO = 1.6mA

0.4

Loop Filter Input/Output

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