TEF6902A datasheet(79/106 Pages) NXP

79 / 106 page

TEF6902A_3

Product data sheet

Rev. 03 — 19 March 2008

79 of 106

NXP Semiconductors

TEF6902A

Integrated car radio

IP2

2nd-order intercept

point

RL = 1.5 kΩ (AC load between

output pins)

170

µV

Vi(n)(eq)

equivalent input noise

voltage

Rgen = 330 Ω; noise of Rgen

included; RL = 1.5 kΩ

(AC load between output pins)

-15

noise ﬁgure of

AM mixer 2

19.5

Ileak

mixer leakage current

FM mode;

Tamb = −40 °Cto+85 °C

µA

AM IF2 AGC stage: pins AMIF2IN and AMIF2DEC[5]

input resistance

1.6

2.4

Ω

input capacitance

input voltage

for

α = −10 dB audio

attenuation at MPXAMOUT

-10

µV

VAGC(stop)

AGC stop voltage (input

carrier voltage)

100

AM demodulator output: pin MPXAMOUT

Vsens

sensitivity voltage

m = 0.3; fmod = 400 Hz;

BAF = 2.15 kHz; Rgen =2kΩ

(S+N)/N = 26 dB

µV

(S+N)/N = 46 dB

600

900

µV

(S+N)/N

maximum signal plus

noise-to-noise ratio

m = 0.3; fmod = 400 Hz;

BAF = 2.15 kHz; Rgen =2kΩ

MPXAMOUT output

voltage

m = 0.3; fmod = 400 Hz;

Vi = 100 µV to 100 mV

200

255

320

THD

total harmonic distortion BAF = 2.15 kHz;

VAMIF2IN = 100 µV to 100 mV;

m = 0.8; fmod = 400 Hz

0.5

tst

AM AGC settling time

VAMIF2IN = 100 µV to 100 mV

165

VAMIF2IN = 100 mV to 100 µV

440

output resistance

500

Ω

output capacitance

load impedance

Ω

ripple rejection

fripple = 100 Hz;

VCC(ripple) = 50 mV (RMS);

VAMIF2IN =10mV

AM level detector output: pin LEVEL

Input: pins AMIF2IN and AMIF2DEC

LST

level start alignment

position

Vi(AMIF2IN) =95 µV; level slope

aligned to (800

± 50) mV/dec;

level start aligned to

VLEVEL = (1.24 ± 0.04) V

∆V

LEVEL

step size for adjustment

of level starting point

VAMIF2IN = 0 V; default setting

of level slope

Table 110. Dynamic characteristics of the tuner …continued

VCC = 8.5 V; Tamb =25 °C; see Figure 41; all AC values are given in RMS; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

----------

CC(ripple)

MPXAMOUT

-----------------------------

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