TDA9898HLSLASHV3 datasheet(68/103 Pages) NXP

68 / 103 page

TDA9897_TDA9898_4

Product data sheet

Rev. 04 — 25 May 2009

68 of 103

NXP Semiconductors

TDA9897; TDA9898

Multistandard hybrid IF processing

(1) VIF AFC via I2C-bus; accuracy is

±1 digit.

(2) Bit AFCWIN via I2C-bus (VCO is in

±1.6 MHz window) for all standards except M/N standard.

(3) Bit AFCWIN via I2C-bus (VCO is in

±0.8 MHz window) for M/N standard.

(4) VIF AFC average current.

(5) Reading via I2C-bus.

(6) Average; RC network at pin MPP.

Fig 17. Typical analog and digital AFC characteristic for VIF

008aaa035

−50

−150

150

250

−250

−50

−150

150

250

IAFC(6)

(

µA)

−250

fVIF (MHz)

36.375

40.375

39.875

37.875

38.875

37.375

36.875

38.375

39.375

bit AFCWIN (R1[7]) = 1

(1)

(4)

(2)

(3)

∆fAFC(VIF)(5)

(kHz)

Characteristics of digital and analog radio AFC is mirrored with respect to center frequency when lower sideband is used

(W2[3] = 0).

(1) RIF AFC via I2C-bus.

(2) FM carrier detection via I2C-bus.

(3) RIF AFC average current.

(4) Reading via I2C-bus.

(5) Average; RC network at pin MPP.

Fig 18. Typical analog and digital AFC characteristic for RIF

001aad443

−50

−150

150

250

IAFC(5)

(

µA)

−250

fRIF (MHz)

5.0

6.0

5.8

5.4

5.6

5.2

AFC undefined

bit CARRDET (R1[5]) = 1

(1)

(3)

(2)

−50

−150

150

250

∆fAFC(RIF)(4)

(kHz)

−250

TDA9898HL/V3 Datasheet(PDF) 68 Page - NXP Semiconductors

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