TEF6894H datasheet(14/55 Pages) PHILIPS

14 / 55 page

2003 Oct 21

Philips Semiconductors

Product speciﬁcation

Car radio integrated signal processor

TEF6894H

Weak signal processing

DETECTORS

Veq(USN)

USN sensitivity equivalent

level voltage

see Fig.5; fMPXRDS = 150 kHz;

VMPXRDS = 250 mV (RMS);

HCMP = 1; note 2

USS[1:0] = 00

−

2.5

−

USS[1:0] = 01

−

USS[1:0] = 10

−

1.5

−

USS[1:0] = 11

−

0.5

−

Veq(WAM)

WAM sensitivity

equivalent level voltage

see Fig.6; VLEVEL = 200 mV (p-p) at

f = 21 kHz on the level voltage;

HCMP = 1; note 2

WAS[1:0] = 00

−

2.5

−

WAS[1:0] = 01

−

WAS[1:0] = 10

−

1.5

−

WAS[1:0] = 11

−

0.5

−

tLEVEL(attack)

level detector attack time

(soft mute and HCC)

see Table 24; LETF = 0; SEAR = 0

LET[1:0] = 00

−

LET[1:0] = 01

−

LET[1:0] = 10

−

1.5

−

LET[1:0] = 11

−

0.5

−

see Table 24; LETF = 1; SEAR = 0

LET[1:0] = 00

−

0.5

−

LET[1:0] = 01

−

0.17

−

LET[1:0] = 10

−

0.06

−

LET[1:0] = 11

−

0.06

−

search mode; SEAR = 1

−

tLEVEL(decay)

level detector decay time

(soft mute and HCC)

see Table 24; LETF = 0; SEAR = 0

LET[1:0] = 00

−

LET[1:0] = 01

−

LET[1:0] = 10

−

1.5

−

LET[1:0] = 11

−

1.5

−

see Table 24; LETF = 1; SEAR = 0

LET[1:0] = 00

−

0.5

−

LET[1:0] = 01

−

0.5

−

LET[1:0] = 10

−

0.17

−

LET[1:0] = 11

−

0.06

−

search mode; SEAR = 1

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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