TEA6843 Просмотр технического описания (PDF) - Philips Electronics
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TEA6843 Datasheet PDF : 62 Pages
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Philips Semiconductors
New In Car Entertainment (NICE)
extended car radio
Product specification
TEA6843HL
SYMBOL
PARAMETER
CONDITIONS
MIN.
VAGC
AM noise blanker AGC AM mixer 1 input Vi = 0 V
2.1
voltage
FM signal channel
RF AGC (FM DISTANCE MODE)
FM mixer inputs: pins FMMIXIN1 and FMMIXIN2
Vi(RF)(rms)
RF input voltage for data byte 5: bit 5 = 1, bit 6 = 1 −
start of wideband AGC data byte 5: bit 5 = 0, bit 6 = 1 −
(RMS value)
data byte 5: bit 5 = 1, bit 6 = 0 −
data byte 5: bit 5 = 0, bit 6 = 0 −
AGC control: pin T2FMAGC
Rsource
VO(ref)
source resistance
DC output reference
voltage
4
data byte 5: bit 5 = 0, bit 6 = 0; 3.8
VFMMIXIN1-FMMIXIN2 = 0 V
PIN diode drive output: pin IFMAGC
Isink(AGC)(max)
Isource(AGC)(max)
Isource(AGC)
maximum AGC sink
current
maximum AGC source
current
AGC source current
VIFMAGC = 2.5 V;
VT2FMAGC = VO(ref) − 0.5 V; data
byte 5: bit 5 = 0, bit 6 = 0,
bit 7 = 0; data byte 4: bit 1 = 0
VIFMAGC = 2.5 V;
VT2FMAGC = VO(ref) + 0.5 V; data
byte 5: bit 5 = 0, bit 6 = 0,
bit 7 = 0; data byte 4: bit 1 = 0
AM mode
VIFMAGC = 2.5 V; data byte 4:
bit 0 = 0, bit 1 = 1, bit 2 = 0
(FM local)
8
−14
−19
−4.4
Level voltage: pin Vlevel
Vth
threshold voltage for
narrow-band AGC
data byte 5: bit 5 = 0, bit 6 = 0, 600
bit 7 = 1
FM RF MIXER
FM mixer inputs: pins FMMIXIN1 and FMMIXIN2
Vi(RF)(max)
Vi(n)(eq)
maximum RF input 1 dB compression point of
70
voltage
FM mixer output voltage
(peak-to-peak value)
equivalent input noise Rgen = 200 Ω; RL = 2.8 kΩ
−
voltage
Ri
input resistance
1.4
Ci
input capacitance
−
FM mixer outputs: pins MIX1OUT1 and MIX1OUT2
Ro
output resistance
100
Co
output capacitance
2
TYP.
2.45
4
8
12
16
5
4.1
10.5
−10.5
−14
−3.7
750
140
2.6
2.8
5
−
3.5
MAX. UNIT
2.85 V
−
mV
−
mV
−
mV
−
mV
6
kΩ
4.4
V
14
mA
−8
mA
−10
mA
−2.7
mA
900
mV
−
mV
3.1
---n---V-----
Hz
4.2
kΩ
7
pF
−
kΩ
5
pF
2003 Dec 19
20
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