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TEA6845H Datasheet PDF : 49 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Product specification
TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
Antenna Digital Auto Alignment (DAA)
DAA INPUT: PIN DAAIN
Ibias(cp)
charge pump buffer input FM mode;
−10
bias current
0.4 V < VDAAIN < 8.0 V
AM mode;
−10
0 V < VDAAIN < 8.5 V
Vi(cp)
charge pump buffer input
0
voltage
DAA OUTPUT: PIN DAAOUT; note 2
Vo(AM)
DAA output voltage in
−
AM mode
Vo(FM)
DAA output voltage in
FM mode
VDAAIN = 4.0 V;
VDAATD = 0.7 V
minimum value
−
bits DAA[6:0] set to logic 0 1.5
value: data
3.8
byte 3 = 10101011
maximum value;
8
bits DAA[6:0] set to logic 1
VDAAIN = 3.0 V;
6.2
VDAATD = 0.7 V; bits DAA[6:0]
set to logic 1
VDAAIN = 2 V
data byte 3 = 11010101
3
data byte 3 = 10101010
1.8
Vo(n)
DAA output noise voltage FM mode; VDAAIN = 4 V;
−
data byte 3: bit 6 = 1,
bits 5 to 0 = 0;
B = 300 Hz to 15 kHz
∆Vo(T)
∆Vo(step)
DAA output voltage
variation with temperature
DAA step accuracy
Tamb = −40 to +85 °C;
data byte 3 = 10101011;
VDAATD = 0.7 V
FM mode; VDAAOUT < 8.0 V;
n = 0 to 127
−8
0.5VLSB
Io(sink)
Io(source)
tst
RR
CL
DAA output sink current 0.2 V < VDAAOUT < 8.25 V
50
DAA output source current
−
DAA output settling time 0.2 V < VDAAOUT < 8.25 V;
−
CL = 270 pF
ripple rejection
fripple = 100 Hz; VDDA4 = 1 mV −
DAA output load
capacitance
VDAAOUT < 8.0 V; FM mode −
TYP.
−
−
−
−
−
1.65
4
−
6.5
3.3
2
30
−
VLSB
−
−
−
50
−
MAX.
+10
+10
8.5
0.3
0.5
1.8
4.2
8.5
6.8
3.6
2.2
100
+8
1.5VLSB
−
−50
30
−
270
UNIT
nA
nA
V
V
V
V
V
V
V
V
V
µV
mV
mV
µA
µA
µs
dB
pF
2003 Feb 04
14
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