TEA6821T Datasheet, PDF (15/47 Pages) NXP Semiconductors – ICE car radio

Philips Semiconductors
ICE car radio
Preliminary specification
TEA6821T
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
V/20 dB
slope of mute voltage ∆V_49-4/∆V_37-35 V_37-35 ≤ 100 µV
(RMS) < 300 mV
0.75 0.845 0.95 V
∆V_49-4/VK
temperature dependence
Attack and decay time for mute voltage.
V_37-35 = 1 mV
−
4.0 −
mV/VK
I₄₉
charge current
discharge current
pin 3 connected to GND −
3.0 −
µA
−
−3.6 −
µA
charge current
pin 3 connected to pin 21 −
130 −
µA
discharge current
−
−160 −
µA
∆f
muting activated by 60 kHz
pin 3 connected to GND; −
30
−
kHz
FM interference
V_37-35 = 3 mV;
V₄₉ < 2 V; f_mod = 60 kHz
Time constant for mono/stereo blend voltage. The mono/stereo blend voltage is generated as a function of FM IF₂
voltage, multipath level, noise and position of Tswitch.
I₁₆
charge current
discharge current
V_37-35 = 3 mV;
−
0.5 −
µA
pin 3 connected to GND −
−18 −
µA
charge current
discharge current
V_37-35 = 3 mV;
−
26
−
µA
pin 3 connected to pin 21 −
−800 −
µA
m
mono/stereo blend activated by
V₁₆ < 2 V; V_37-35 = 3 mV;
20 kHz AM interference
R_L16 > 50 MΩ;
f_mod = 20 kHz; pin 3
connected to GND
−
45
−
%
pin 3 connected to pin 21 −
40
−
%
∆f
mono/stereo blend activated by
V₁₆ < 3 V; V_37-35 = 3 mV;
60 kHz FM interference
R_L16 > 50 MΩ;
f_mod = 60 kHz; pin 3
connected to GND
−
30
−
kHz
pin 3 connected to pin 21 −
22
−
kHz
Time constant for high-cut control voltage (SDR). The high-cut control voltage is generated as a function of FM IF₂
voltage, multipath level, noise and position of Tswitch.
I₁₅
charge current
discharge current
V_37-35 = 3 mV;
−
0.4 −
µA
pin 3 connected to GND −
−0.44 −
µA
charge current
discharge current
V_37-35 = 3 mV;
−
41
−
µA
pin 3 connected to pin 21 −
−44 −
µA
m
high-cut control activated by 20 kHz V₁₅ < 2 V; V_37-35 = 3 mV;
AM interference
R_L15 > 50 MΩ;
f_mod = 20 kHz;
pin 3 connected to GND −
40
−
%
pin 3 connected to pin 21 −
35
−
%
∆f
high-cut control activated by 60 kHz V₁₅ < 2 V; V_37-35 = 3 mV;
FM interference
R_L15 > 50 MΩ;
f_mod = 60 kHz;
pin 3 connected to GND −
25
−
kHz
pin 3 connected to pin 21 −
20
−
kHz
September 1993
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