參數(shù)資料
型號(hào): μPC8002
廠商: NEC Corp.
英文描述: Second Mixer + IF Amplifier For Digital Cordless Telephones(應(yīng)用于無(wú)繩電話的二次混頻+中頻放大器)
中文描述: 第二級(jí)混頻器中頻對(duì)于數(shù)字無(wú)繩電話放大器(應(yīng)用于無(wú)繩電話的二次混頻中頻放大器)
文件頁(yè)數(shù): 21/32頁(yè)
文件大?。?/td> 211K
代理商: ΜPC8002
μ
PC8002
21
Test Circuit Example 4. (IF amplifier phase fluctuation)
Caution
The 10 pF capacitor value for RSSI OUT includes all the capacitances (board, pattern, etc) applied
to the pin.
Caution
The 10 pF capacitor value for IF2 OUT includes all the capacitance (board, pattern, etc.) applied
to the pin. Ensure that the recommended load condition (10 pF) is not exceeded.
Test Circuit Example 5. (RSSI rise time, RSSI fall time)
... Time until RSSI output is within
±
10 % of the final value)
330 pF
IF1 IN
19
17
IF1 OUT
10
RSSI OUT
10 pF
For IF2 input
Storage
oscilloscope 2
15
IF2 IN
For IF1 input
50
SG
10.7 MHz, _14 dBm
Storage
oscilloscope 1
330 pF
50
SG
10.7 MHz, _14 dBm
Input signal from SG
1 SEC
50 SEC
19
IF1 IN
50
330 pF
Network
analyzer
11
IF2 OUT
10 pF
10 k
Attenuator
1000 pF
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