Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Tunable filter
Bmax
maximum bandwidth
minimum bandwidth
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode
−
−
−
−
−
−
160
−
−
−
−
−
−
kHz
kHz
kHz
kHz
kHz
kHz
Bmin
B13
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode; VTACD = 4.2 V
25
13
60
90
130
bandwidth in weather band
mode
B60
bandwidth in narrow band data byte 4: bit 1 = 1, bit 0 = 1
mode
B90
bandwidth in mid band
mode
data byte 4: bit 1 = 1, bit 0 = 0
B130
bandwidth in wideband
mode
data byte 4: bit 1 = 0, bit 0 = 1
PIN VIFBW
Vo
monitor output voltage for
IF2 bandwidth
fixed bandwidth = narrow
fixed bandwidth = mid
fixed bandwidth = wide
−
−
−
−
1.35
0.94
0.55
5
−
−
−
−
V
V
V
Ro
output resistance
kΩ
Adjacent channel detector
MODULATION DETECTOR INPUT: PIN MODDET
Ri
Ci
input resistance
−
−
42.4
5
−
kΩ
input capacitance
7
pF
MODULATION DETECTOR OUTPUT: PIN MODETOUT
Ro
output resistance
−
33.9
−
kΩ
DETECTOR ADJUST: PIN ACDTHRES
Ri
Ci
input resistance
6.2
7.8
5
9.4
7
kΩ
input capacitance
−
pF
FM demodulator and level detector; see Figs 6 and 7
FM DEMODULATOR
FM mixer 2 input: pins FMMIX2IN and FMMIX2DEC; note 3
Vstart(lim)(rms)
start of limiting of RDS
MPX output voltage
(RMS value)
αAF = −3 dB
−
4.5
−
µV
Vo(sens)(rms)
sensitivity for RDS MPX
∆f = 22.5 kHz; fmod = 1 kHz;
output voltage (RMS value) de-emphasis = 50 µs
Rgen = 165 Ω;
(S+N)/N = 26 dB
−
−
11
90
−
−
µV
µV
(S+N)/N = 46 dB
2004 Nov 12
23
NXP [ NXP ]
