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參數(shù)資料
| 型號(hào)： | STV0056AF |
| 廠(chǎng)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)： | 17/27頁(yè) |
| 文件大?。?/td> | 224K |
| 代理商： | STV0056AF |
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4
Vbg 1.2V
V
REF
(2.4V)
10k
10k
GND0V
400
μ
A
43
0
Figure 24
1
V
REF
2.4V
Pins 59 - 53
LEVEL R
LEVEL L
50k
100
μ
A
49k
49k
SW
Audio
0
Figure 25
1
V
REF
2.4V
Pins 58 - 54
PK IN R
PK IN L
67k
100
μ
A
To Peak Det
0
Figure 26
Video Pads
V
DD
5V
GND 5V
Pins 41 - 42
A GND L
Digital Pads
205
A 12V
A GND R
Audio Pads
+
BIP
12V
-
Substrate
DZPN1
DZPN1
DZPN1
BIP 10vpl
Vmm
Vpp
56
Pins 10 - 11
V 12V
Pins 13 - 14
V GND
32
33
0
Figure 27
V
REF
The 400
μ
A source is off during stand-bymode.
LEVELL, LEVELR
PK IN L, PK IN R
V 12V
Doubledbonded (twobond wires and twopadsfor
one package pin) :
- One pad is connectedto all of the 12V ESD and
video guardrings.
- The second pad is connected to power up the
video block.
V GND
Doubledbonded :
- Onepadis connectedto power-upallof thevideo
mux and I/O.
- The second pad is only as a low noise GND for
the video input.
V
DD
5V, GND 5V
Connected to XTL oscillator and the bulk of the
CMOS logicand 5V ESD.
A GND
Doubledbonded :
- One pad connected to the left VCO, dividers,
mixers and guard ring. the guard connection is
star connecteddirectly to the pad.
- The secondpadis connectedto both AGC amps
and the deemphasis amplifiers, frequency syn-
thesis and FM deviationselection circuit for both
channels.
A 12V
Doubledbonded :
- One pad connectedto the ESD and guard ring.
- The second pad is connectedto the main power
for all of the audio parts.
A GND R
Boubled bonded:
- One pad connected to the right VCO, dividers,
mixers and guard ring. The guard connectionis
star connecteddirectly to the pad.
- The second pad is connected to the bias block,
audio noisereduction, volume, mux and ESD.
A third bond wire on this pin is connected directly
to the die pad (substrate).
PIN INTERNAL CIRCUITRY
(continued)
STV0056AF
17/27
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