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參數(shù)資料
| 型號(hào)： | LV2700V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Spread Spectrum Communications IC(頻譜擴(kuò)展通訊芯片) |
| 中文描述： | 擴(kuò)頻通信集成電路（頻譜擴(kuò)展通訊芯片） |
| 文件頁(yè)數(shù)： | 6/20頁(yè) |
| 文件大小： | 343K |
| 代理商： | LV2700V |
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No. 5651-6/20
LV2700V
Pin No.
Pin
Pin voltage(V)
Pin function
Equivalent circuit
11
FILOFF
Through SW selection of 150kHz LPF. The
through SW becomes ON when this input is
HIGH, but is normally OFF (Low).
12
PN1
PN code selection
13
PN2
These pins select one of six code-length types.
0 = Low 1 = High
14
PN3
15
TX/RX
Send/receive mode selection.
High: Transmission
Low: Reception
16
V
DD
CMOS block power supply
17
TX DATAIN
Transmission data input (CMOS levels). Do not
apply analog signals to this pin.
18
TX DATAOUT
Transmission data output. The output signal is
band limited to 300kHz and voltage limited to 1
Vp-p.
19
DGND
CMOS block ground
20
XIN
1/2V
CC
Input for the 9.8304MHz reference oscillator
inverter.
21
XOUT
1/2V
CC
Output for the 9.8304MHz reference oscillator
inverter.
Add a resistor of about 1M
between XIN and
XOUT.
22
TXLPF
1.5
Connection for the 9.8MHz PLL loop filter used in
transmission.
PN1
PN2
PN3
PN code length
0
0
0
15
0
0
1
15
0
1
0
31
0
1
1
63
1
0
0
127
1
0
1
255
1
1
0
511
1
1
1
PN reset
1.7
0.7
1Vp-p
Continued on next page.
Continued from preceding page.
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