參數(shù)資料
型號(hào): TDA7338
廠商: 意法半導(dǎo)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(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 103K
代理商: TDA7338
80KHz LP
SIGNAL PATH
ATC
AUTOMATIC
THRESHOLD
CONTROL
PEAK+VTH
RECT-PEAK
BUF
PEAK
AMP
RECT
-
+
PEAK COMP
REF.
BLANK COMP
-
ADDITIONAL
THRESHOLD
CONTROL
(ATC-SB)
40
μ
s
LEFT
RIGHT
to OUTPUTS
MPX IN
VR
VSB
CPEAK
47nF
CBLANK
330pF
D95AU368
+
140KHz HP
120KHz HP
LEVEL
2V
7V
THRESHOLD L/H
ADDITIONAL
THRESHOLD
CONTROL on/off
PROG
V
S
-
+
BLEND
ON/OFF
0.1V
BLEND
CONTROL
Figure 3:
BlockDiagram of the Noise Blanker
100mV
60mV
NOISE
ADJUSTED
TRIG. THRESHOLD
MIN. TRIG. THRESHOLD
300mV
180mV
0.9V
VTH
1.5V
VPEAK(V)
D95AU369
Figure 4:
Trigger Thresholdvs. V
PEAK
Table 1:
Programmingof the Noiseblanker
PIN 1 (PROG)
GND
OPEN
V
DD
Trigger Threshold
LOW
HIGH
HIGH
Peak Voltage Control By Fieldstrength
ON
ON
OFF
TDA7338
7/11
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