Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
5.8
MAX.
UNIT
Vi(n)(eq)
equivalent input noise
voltage
band limited noise;
Rgen = 750 Ω; RL = 2.8 kΩ
(AC load between output pins)
−
−
−
nV
-----------
Hz
F
noise figure of AM mixer 1
4.5
7.1
dB
WEATHER BAND FLAG: PIN T1AMAGC
IL(max)
maximum load current
−5
−
−
+5
µA
Vo(max)
maximum output voltage
for FM mode
measured with respect to
pin RFGND
0
0.5
V
Vo(min)
minimum output voltage
for WX mode
measured with respect to
pin RFGND
5.1
6.0
6.9
V
AM MIXER 2 (IF2 = 450 KHZ)
Mixer inputs: pins IFAMP1IN and IFAMP1DEC
Ri
input resistance
input capacitance
DC voltage
note 6
note 6
270
−
330
5
390
7
Ω
pF
V
Ci
VI
2.4
1.1
2.7
−
3
Vi(max)(p)
maximum input voltage
(peak value)
1 dB compression point of
AM mixer 2 output
(peak-to-peak)
−
V
Mixer outputs: pins AMMIX2OUT1 and AMMIXOUT2
R0
output resistance
note 7
100
−
−
−
7
−
kΩ
pF
V
Co
output capacitance
note 7
5
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
VDDA = 8.5 V
12
15
Ibias
mixer bias current
AM mode
3.6
1.3
4.5
1.6
5.4
1.9
mA
Mixer
gm(conv)
conversion
transconductance
mA
--------
V
IAMMIX2OUT1
------------------------------
VIFAMP1IN
gm(conv)(T)
conversion
−
−9 × 10−4
−
K−1
transconductance
variation with temperature
∆gm(conv)
--------------------------------
g
m(conv) × ∆T
IP3
3rd-order intermodulation RL = 4 kΩ (AC load between
134
−
137
170
15
−
dBµV
dBµV
output pins)
IP2
2nd-order intermodulation RL = 4 kΩ (AC load between
−
output pins)
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; RL = 4 kΩ
(AC load between output pins)
−
22
nV
-----------
Hz
F
noise figure of AM mixer 2
−
16
19.5
dB
2001 Apr 12
17
NXP [ NXP ]
