參數(shù)資料
型號(hào)： TEA6822T-T
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO56
封裝： PLASTIC, SOT-190-1, VSOP-56
文件頁數(shù)： 5/48頁
文件大?。?/td> 351K
代理商： TEA6822T-T
1997 Feb 12
13
Philips Semiconductors
Preliminary specication
In Car Entertainment (ICE) car radio
TEA6820T; TEA6822T
Notes to the characteristics
1. For typical adjusting range see Figs 10 and 13.
2. For typical curve see Fig.11.
3. The static mute voltage follows the unweighted voltage level as function of FM-IF2 voltage and level adjustment
voltage V38-4. It additionally depends on multi-path level, noise (adjacent channel interferences) and the position of
TSWITCH (pin 3). For typical curve for mute voltage dependence see Fig.12.
4. The mono/stereo blend voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of
TSWITCH.
5. The high-cut control voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of
TSWITCH.
6. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer.
7. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable
by the I2C-bus: divide by 6 (AM-IF1 = 10.7 MHz); divide by 2 (AM-IF1 = 30 MHz).
8. For typical AM level curve see Fig.15.
9. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%.
AM DETECTOR; notes 8 and 9
V48-4(rms)
AF output level (RMS value)
RL48 > 500 k;
100
V ≤ V33-34 ≤ 300 mV
190
240
290
mV
V33-34(rms)
sensitivity voltage (RMS value)
50
75
V
200
400
V
AM-IF2 minimum input voltage
(RMS value)
THD
≤ 5%; m = 0.8
100
V
AM-IF2 maximum input voltage
(RMS value)
THD
≤ 5%; m = 0.8
800
mV
R33-34
IF2 input resistance
1.8
2.0
2.2
k
C24-23
IF2 input capacitance
10
15
pF
Ro48
output resistance
27
33
39
k
Co48
output capacitance
10
pF
signal plus noise-to-noise ratio
54
60
dB
THD
total harmonic distortion
m = 0.8;
300
V ≤ V33-34 ≤ 200 mV
1.5
3.0
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
SN
+
N
--------------
26 dB
=
SN
+
N
--------------
46 dB
=
SN
+
N
--------------
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