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TEA6848H

New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS)

Philips Electronics 

Philips Semiconductors

New In Car Entertainment car radio tuner IC with

Precision Adjacent Channel Suppression (NICE-PACS)

Product specification

TEA6848H

SYMBOL

PARAMETER

CONDITIONS

MIN.

Co

output capacitance

data byte 3: bit 0 = 1, bit 1 = 0, −

bit 2 = 1

ZL

load impedance

data byte 3: bit 0 = 1, bit 1 = 0, 100

bit 2 = 1; AM mono

data byte 3: bit 0 = 1, bit 1 = 1, 10

bit 2 = 1; AM stereo

RR

ripple rejection

VDDA5(ripple) = 100 mV (RMS);

−

fripple = 100 Hz

VDDA6(ripple) = 100 mV (RMS);

−

fripple = 100 Hz

AM IF2 LEVEL DETECTOR OUTPUT: PIN Vlevel(AMFM); see Fig.4

Vlevel(AMFM)

DC output voltage

VAMIF2IN = 10 µV to 1 V

0

VAMIF2IN < 1 µV; standard setting 0.1

of level DAA

VAMIF2IN = 1.4 mV; standard

1.6

setting of level DAA

∆Vlevel(AMFM)

step size for adjustment of VAMIF2IN = 0 V; standard setting 30

level starting point

of level slope

Vlevel(slope)

slope of level voltage

VAMIF2IN = 140 µV to 140 mV;

650

standard setting of level slope

∆Vstep

step size for adjustment of VAMIF2IN = 1.4 mV

45

level slope

Blevel(AMFM)

bandwidth of level output VAMIF2IN = 15 mV; standard

200

voltage

setting of level DAA

Ro

output resistance

−

RR

ripple rejection V--V---D-l-e-D--v-A-e--6l-

VDDA6(ripple) = 100 mV (RMS);

−

fripple = 100 Hz

AM NOISE BLANKER; TEST SIGNAL AND TEST CIRCUIT; see Fig.5

Threshold: pin AMNBHOLD

VO

DC output voltage

4.3

tsup

suppression time

Vpulse = 200 mV (peak);

6

Vlevel(AMFM) < 1.8 V

ftrigger

trigger sensitivity frequency Vpulse = 200 mV (peak);

−

Vleve(AMFM)l < 1.8 V

Vpulse = 200 mV (peak);

−

Vlevel(AMFM) > 2.2 V

Vpulse = 20 mV (peak);

−

Vlevel(AMFM) < 1.8 V

Noise detector output: pin TRDSMUTE

Isink(AGC)

AM noise blanker AGC sink VTRDSMUTE = 3 V

35

current

TYP.

5

−

−

24

26

−

0.5

2.2

40

800

60

300

−

36

4.6

7.5

1 000

−

−

50

MAX. UNIT

7

pF

−

kΩ

−

kΩ

−

dB

−

dB

7

V

0.9

V

2.8

V

50

mV

950

2----0m-----dV---B---

75

2----0m-----dV---B---

−

kHz

500

Ω

−

dB

5.1

V

10

µs

−

Hz

100

Hz

100

Hz

65

µA

2004 Nov 12

20

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