Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
start-up at
MIN.
TYP.
MAX.
UNIT
mA
IXTALGND
crystal oscillator circuit
current
−
−
9
−
−
VXTAL1 = VXTAL2 = 2.1 V
operating at
1.5
mA
VXTAL1 − VXTAL2 = ±400 mV
Oscillator divider N1
N1
oscillator divider ratio
FM mode:
standard, Europe and local
weather band (WX)
−
−
2
1
−
−
Oscillator divider N2
N2
oscillator divider ratio
AM mode
SW
−
−
10
5
−
−
LW and MW
Synthesizer
PROGRAMMABLE DIVIDER
Nprog
programmable divider
512
−
32767
ratio
∆Nstep
programmable divider step
size
−
1
−
REFERENCE FREQUENCY DIVIDER
Nref
crystal oscillator divider
ratio
fxtal = 20.5 MHz
fref = 100 kHz
fref = 50 kHz
fref = 25 kHz
fref = 20 kHz
fref = 10 kHz
−
−
−
−
−
205
−
−
−
−
−
410
820
1025
2050
CHARGE PUMP: PIN CPOUT
Isink(cp1)l
low charge pump 1 peak
sink current
FM weather band mode;
0.4 V < VCPOUT < 7.6 V
200
−400
0.7
300
−300
1
400
−200
1.3
µA
µA
mA
Isource(cp1)l
Isink(cp1)h
low charge pump 1 peak
source current
FM weather band mode;
0.4 V < VCPOUT < 7.6 V
high charge pump 1 peak AM stereo mode; N2 = 10
sink current
(LW and MW);
0.4 V < VCPOUT < 7.6 V
Isource(cp1)h
high charge pump 1 peak AM stereo mode; N2 = 10
−1.3
−1
−0.7
mA
source current
(LW and MW);
0.4 V < VCPOUT < 7.6 V
Isink(cp2)
charge pump 2 peak sink FM standard mode;
100
−160
−5
130
−130
−
160
−100
+5
µA
µA
nA
current
0.3 V < VCPOUT < 7.1 V
Isource(cp2)
charge pump 2 peak
source current
FM standard mode;
0.3 V < VCPOUT < 7.1 V
IZ(cp1), IZ(cp2) charge pump 1 or 2
current in 3-state
0 < VCPOUT < 8.5 V
2001 Apr 12
13
NXP [ NXP ]
