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): 22/32頁(yè)
文件大?。?/td> 211K
代理商: ΜPC8002
μ
PC8002
22
Test Circuit Example 6. (Power-on rise time)
Mixer section : Time until the difference between the local input pin power-on and
power-off voltage reaches 90 %
IF section
: Time until RSSI output is within
±
10 % of the power-on value.
1
PD
10
RSSI OUT
10 pF
Storage
oscilloscope 2
LO IN
5
Storage
oscilloscope 1
Input signal from SG
1 SEC
50 SEC
SG
3 V
0 V
Remark
Power-on input voltage (V
PO
) rise time: 10 ns
Caution
The 10 pF capacitor value for RSSI OUT includes all the capacitances (board, pattern, etc.)
applied to the pin. Ensure that the recommended load condition (10 pF) is not exceeded.
Test Circuit Example 7. (Power-off fall time)
1
PD
Storage
oscilloscope
Input signal from SG
1 SEC
50 SEC
SG
12
V
CC
(IF OUT)
3
V
CC
(IF)
Current probe
4
V
CC
(MIX)
3 V
0 V
V
CC
V
CC
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