參數(shù)資料
型號: PEF2445N
英文描述: ?Multipoint Switching and Conferencing Unit - Attenuation?
中文描述: ?多點交換和會議股-衰減?
文件頁數(shù): 26/73頁
文件大?。?/td> 1618K
代理商: PEF2445N
PEB 2466
PEF 2466
Operational Description
Hardware Reference Manual
17
2001-02-20
4.2.5
Gain Accuracy
Table 7
Gain Accuracy
4.2.6
Gain Tracking (Receive and Transmit)
The gain deviation for a 1014 Hz sine-wave input signal will stay within limits shown in
Table 8
. All values are relative to the gain of a 0 dBm0 input signal.
Table 8
Gain Deviations with Input Level
Parameter
Symbol
Limit Values
min.
typ.
Unit
Test Conditions
max.
Absolute Gain
G
0.20
±
0.10 +0.20
dB
T
A
= 25
°
C,
V
DD
= 5 V,
AGX = AGR = 0 dB
Variation with
Temperature
Variation with
Supply Voltage
Variation with
Analog Gain
±
0.05
dB
T
A
=
40
°
C to 85
°
C
±
0.05
dB
V
DD
= 5 V
±
5%
±
0.05
dB
AGX= +6.02 dB,
AGR=
6.02 dB
Input Level
Symbol
Gain Deviation
min.
typ.
Unit
Test Conditions
max.
±1.4
±0.5
±0.25
-55 to -50 dBm0
-50 to -37 dBm0
-37 to 3 dBm0
G
G
G
dB
dB
dB
1014 Hz sine-wave
test signal. Reference
level is at 0 dBm0.
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