參數(shù)資料
型號： TDA7338D
廠商： 意法半導體
元件分類： 通用總線功能
英文描述： STEREO DECODER
中文描述： 立體聲解碼器
文件頁數(shù)： 3/11頁
文件大小： 103K
代理商： TDA7338D
ELECTRICALCHARACTERISTICS
(V
CC
= 9V; modulationfrequency:1KHz; de-emphasistime:
T = 50
μ
s; nominalMPX input voltage: V
MPX
= 1.5V
PP
; m 100%(75KHz deviation,f
mod
= 1KHz);
R
IN
= 40.2k
, R
OUT
= 40.2k
; T
amb
= 27
°
C; C
REF
= 4.7
μ
F; unless otherwisespecified)
Symbol
V
CC
I
CC
V
IN
V
ORMS
Parameter
Test Condition
Min.
7.5
5
Typ.
9
10
1.5
1.5
Max.
10.2
15
Unit
V
mA
V
V
Supply Voltage
Supply Current
MPX Input Level (peak to peak)
A.F. Output Voltage (mono)
fm= 1KHz
pin 10 and 11V
IN
= 0.5V
RMS
MONO;
V
RIPPLE
= 200mV; f = 1KHz
pin 10 and 11-mono
V
10
/V
20
pin 10 and 11
pin 10 and 11
V
R
- V
SB
= -50mV
DC
SVRR
V
L
/V
R
V
o
/V
i
R
O
V
O
α
THD
S
+
N
N
Supply Voltage Ripple Rejection
DifferenceofOutputVoltage Levels
Gain
Output Resistance
DC Output Voltage
Channel Separation
Total Harmonic distortion
Signal plus noise to noise ratio
40
-0.8
8.5
55
dB
dB
dB
V
dB
%
dB
0.8
10.5
50
4.8
9.5
10
4.5
45
0.02
91
4.2
30
0.3
f = 20Hz to 16KHz;
S = 2Vrms
α
M
V
DC
Muting Attenuation
Mute DC Steps at pins10, 11
V
7
and V
8
< 0.6V
Mute at pin 8
100
0
dB
mV
4
CARRIER AND HARMONIC SUPPRESSIONAT THEOUTPUT
α
19
α
38
α
57
α
76
Pilot Signal f = 19KHz
Subcarrier f = 38KHz
Subcarrier f = 57KHz
Subcarrier f = 76KHz
55
70
75
62
90
dB
dB
dB
dB
INTERMODULATION(note 1)
α
2
α
3
f
mod
= 10KHz; f
spur
= 1KHz
f
mod
= 13KHz; f
spur
= 1KHz
65
75
dB
dB
TRAFFIC RADIO (note 2)
α
57
Signal f = 57KHz
70
dB
SCA - SUBSIDIARYCOMMUNICATIONS AUTHORIZATION (note 3)
α
67
Signal f = 67KHz
75
dB
ACI - ADJACENT CHANNEL INTERFERENCE (note4)
α
114
α
190
Signal f = 114KHz
Signal f = 190KHz
95
84
dB
dB
MONO/ STEREO SWITCH
V
INTH
V
INTH
V
PI
I
PI
V
19
Pilot Threshold Voltage
Pilot Threshold Voltage
Pilot Indicator Saturation Voltage
Pilot Indicator Leakage Current
Control Voltage for forced mono
STEREO BLEND
for stereo ”O(jiān)N”
for stereo ”O(jiān)FF”
I = 1mA
V = 9V
α
= < 3dB
12
7
20
14
0.2
28
21
0.5
10
0.8
mV
RMS
mV
RMS
V
μ
A
V
V
16-17
Control Voltage for Channel
Separation
Control Voltage for Channel
Separation
α
= 6dB; V
R
= 3.6V (note 5)
-0.31
-0.27
-0.23
V
V
16-17
α
= 26dB;
-85
-55
-30
mV
TDA7338
3/11
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