參數(shù)資料
型號(hào): STV0056A
廠商: 意法半導(dǎo)體
英文描述: Satellite Sound and Video Processor(衛(wèi)星探測(cè)和視頻處理器)
中文描述: 衛(wèi)星聲音和視頻處理器(衛(wèi)星探測(cè)和視頻處理器)
文件頁(yè)數(shù): 15/26頁(yè)
文件大?。?/td> 247K
代理商: STV0056A
180
μ
/2
μ
MUX
22kHz
100
μ
/2
μ
I/O/22kHz
10
μ
/2
μ
91
μ
/2
μ
205
ESD
IIC Reg
0
Figure15
SCL
24
μ
/4
μ
205
ESD
0
Figure16
SDA
24
μ
/4
μ
205
ESD
600
μ
/2
μ
GND0V
0
Figure17
J17 L
J17 R
U75 L
U75 R
I2
I1
0
Figure18
HA
25
μ
/2
μ
10
μ
/2
μ
205
ESD
GND 0V
150
μ
A
0
Figure 19
750
μ
A
460
XTL
GND 0V
2
3
2
500
μ
A
5pF
460
3
750
μ
A
0
Figure 20
CPUMP L
CPUMP R
VCO Input
1
μ
A
1
μ
A
Loop Filter Tracking
100
μ
A
100
μ
A
Dig Synth
0
Figure 21
DET L
DET R
I2
I1
0
Figure 22
PIN INTERNALCIRCUITRY
(continued)
I/O/ 22kHz
The inputis TTL compatible.
The outputis tri-stateable.
SCL
This is the input to a Schmittinputbuffermadewith
a CMOS amplifier.
SDA
Input same as above.
Output pull down only : relies on external resistor
for pull-up.
J17 L, J17 R, U75 L, U75R
I1 - I2 = 2 x audio / 18k
.
eg 1V
PP
audio :
±
55
μ
A.
The are internalswitches to match theaudio level
of the different standards.
HA
Pull-down current for SDIP42.
Input with CMOS levels.
XTL
CPUMP L, CPUMP R
An offseton the PLL loop filter will cause an offset
in the two 1
μ
A currents that will prevent the PLL
from drifting-off frequency.
DET L, DET R
I2 - I1 = f (phaseerror).
STV0056A
15/26
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