TDA7540B datasheet(9/75 Pages) STMICROELECTRONICS

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TDA7540B

Electrical specifications

9/75

3.2.2

FM section

1.16

ICCMIX1

Supply current

AM ON

1.17

ICCMIX2

Supply current

AM ON

1.18

ICCIF1

Supply current

1.19

ICCST

Supply current

Reference Voltages

2.1

VREF1

Internal reference voltage

IREF1 = 0mA

2.2

VREF2

Internal reference voltage

IREF2 = 0mA

2.5

3I2C-Bus interface

3.1

fSCL

Clock frequency

400

kHz

3.2

VIL

Input low voltage

3.3

VIH

Input high voltage

3.4

IIN

Input current

-5

µA

3.5

Output acknowledge

voltage

IO = 1.6mA

0.4

Table 5.

Electrical characteristics

(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V,

fRF = 98MHz, dev= 40kHz, fMOD = 1kHz, fXtal = 10.25MHz, in application circuit, unless

otherwise specified).

Item

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Wide Band RF AGC

4.1

V9-11

Lower threshold start

V16 = 2.5V

µV

4.2

V9-11

Upper threshold start

V16 = 2.5V

µV

Narrow Band IF & Keying AGC

5.1

V77

Lower threshold start

KAGC = off, V9-11 = 0mVRMS

µV

5.2

V77

Upper threshold start

KAGC = off, V9-11 = 0mVRMS

µV

5.3

V77

Lower threshold start with

KAGC

KAGC = max,

V9-11 = 0mVRMS,

∆f

IF=300KHz

µV

5.4

V22

Startpoint KAGC

KAGC = max,

V9-11 = 0mVRMS,

∆f

IF=300KHz

fIF1 generates FS level at V22

2.2

5.5

∆

Control range KAGC

∆V

22= +0.8V

5.6

RIN

Input resistance

Ω

Table 4.

Electrical characteristics (continued)

(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 =8.5V,

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

Item

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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