TEA6848H Просмотр технического описания (PDF) - Philips Electronics
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TEA6848H
Philips Electronics
TEA6848H Datasheet PDF : 63 Pages
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Philips Semiconductors
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
Product specification
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
VAGC
AM noise blanker AGC
voltage
AM mixer 1 input Vi = 0 V
FM signal channel
FM RF AGC (FM DISTANCE MODE; DATA BYTE 4: BIT 3 = 0)
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(rms)
RF input voltage for start of
wideband AGC
(RMS value)
data byte 4: bit 5 = 1, bit 6 = 1
data byte 4: bit 5 = 0, bit 6 = 1
data byte 4: bit 5 = 1, bit 6 = 0
data byte 4: bit 5 = 0, bit 6 = 0
Pin TFMAGC
Rsource
VO(ref)
source resistance
DC output reference
voltage
PIN diode drive output: pin IFMAGC
data byte 4: bit 5 = 0, bit 6 = 0;
VFMMIXIN1-FMMIXIN2 = 0 V
Isink(AGC)(max)
maximum AGC sink
current
Isource(AGC)(max) maximum AGC source
current
Isource(AGC)
AGC source current
VIFMAGC = 2.5 V;
VTFMAGC = VO(ref) − 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
VIFMAGC = 2.5 V;
VTFMAGC = VO(ref) + 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
AM mode
VIFMAGC = 2.5 V; data byte 4:
bit 3 = 1 (FM local)
Level voltage output: pin Vlevel(AMFM)
Vth
threshold voltage for
narrow-band AGC
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 1; keyed AGC
FM RF MIXER
Reference voltage: pin Vref(MIX)
Vref
reference voltage
FM mode
AM mode
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(max)
Vi(n)(eq)
maximum RF input voltage
equivalent input noise
voltage
1 dB compression point of
FM mixer output voltage
(peak-to-peak value)
Rgen = 200 Ω; RL = 2.6 kΩ
Ri
input resistance
Ci
input capacitance
MIN. TYP.
1.9
2.2
−
3
−
6
−
9
−
12
4
5
4.1
4.6
8
11.5
−15
−11.5
−15
−0.65
−11.5
−0.5
500 950
6.5
7.1
2.7
3.1
70
100
−
2.6
1.4
2.8
−
5
MAX. UNIT
2.5
V
−
mV
−
mV
−
mV
−
mV
6
kΩ
5.1
V
15
mA
−8
mA
−8
mA
−0.35 mA
1400 mV
7.9
V
3.4
V
−
mV
3.1
---n---V-----
Hz
4.2
kΩ
7
pF
2004 Nov 12
21
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