Datasheet

TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 83 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
IRR image rejection ratio f
RFwanted
= 87.5 MHz;
f
RFimage
= 108.9 MHz
25 35 - dB
V
o(max)(p-p)
maximum output voltage
(peak-to-peak value)
4.5 5.6 - V
FM filter and demodulator
Tunable filter
B
max
maximum bandwidth DYN = 1 - 165 - kHz
DYN = 0 - 165 - kHz
B
min
minimum bandwidth DYN = 1 - 57 - kHz
DYN = 0 - 57 - kHz
∆f
IF2
FM IF2 center frequency
alignment step size
- 2 - kHz
f
IF2(T)
temperature
dependence of IF2
center frequency
−60 - +60
FM demodulator
FM mixer 2 input: pins IF1IN and IF1DEC
[5]
and output: pin MPXAMOUT
R
i
input resistance 275 330 400 Ω
R
o
output resistance - - 500 Ω
R
L
load resistance 20 - - kΩ
C
L
load capacitance - - 20 pF
V
i(max)
maximum input voltage - 280 - mV
V
i(start)(lim)
input voltage for start of
limiting of V
MPXAMOUT
α
AF
= −3 dB - 2.3 - µV
V
i(sens)
sensitivity input voltage ∆f = 22.5 kHz; f
mod
= 1 kHz;
de-emphasis = 50 µs
(S+N)/N = 26 dB;
R
gen
= 330 Ω
-5 - µV
(S+N)/N = 46 dB - 41 - µV
(S+N)/N ultimate signal plus
noise-to-noise ratio on
pin MPXAMOUT
∆f = 22.5 kHz; f
mod
= 1 kHz;
V
i
= 3 mV;
de-emphasis = 50 µs;
B = 300 Hz to 22 kHz
75 78 - dB
THD total harmonic distortion
of V
MPXAMOUT
∆f = 75 kHz; f
mod
= 1 kHz;
V
i
=10mV
- 0.5 1 %
∆f
max
maximum FM deviation THD = 3 %; f
mod
= 1 kHz;
V
i
=10mV
120 180 - kHz
α
AM
AM suppression FM reference: ∆f = 22.5 kHz;
f
mod
= 1 kHz;
AM: m = 0.3; f
mod
= 1 kHz;
de-emphasis = 50 µs
10 µV<V
i
<1V - 40 - dB
100 µV<V
i
< 1 V - 50 - dB
Table 110. Dynamic characteristics of the tuner
…continued
V
CC
= 8.5 V; T
amb
=25 ° C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
V
owanted
V
oimage
-------------------
Hz
K
------
V
MPXAMOUT(FM)
V
MPXAMOUT(AM)
---------------------------------------