BL34118
LEVEL DETECTORS AND BACKGROUND NOISE MONITORS
(T
A
= +25°C)
Transmit-Receive Switching Threshold
( Ratio of Current at RLI1 + RLI2 to 20 uA at TLI1 + TLI2 to
switch from Tx to Rx)
Source Current at RLO1, RLO2, TLO1, TLO2
Sink Current at RLO1, RLO2, TLO1, TLO2
CPR, CPT Output Resistance ( Iout = 1.5 mA)
CPR, CPT Leakage Current
I
LSO
I
LSK
R
CP
I
CPLK
-
-
-
-
-2.0
4.0
35
-0.2
-
-
-
-
mA
µA
Ω
µA
I
TH
0.8
1.0
1.2
FILTER
(T
A
= +25°C)
Voltage Offset at FO (V
FO
– VB, 220 kΩ from V
B
to FI)
FO Sink Current
FI Bias Current
FO
VOS
I
FO
I
FI
-200
150
-
-90
260
-50
0
400
-
mV
µA
nA
SYSTEM DISTORTION
(T
A
= +25°C)
Rx Mode ( From FI to RXO, FO connected to RXI)
Tx Mode ( From MCI to HTO-/HTO+, includes Tx attenuator)
THD
R
THD
T
-
-
0.5
0.8
3.0
3.0
%
%
1. All currents into a devices pin are positive, those out of a pin are negative, Algebraic convention rather than magnitude is used to define limits.
51 K
HTO-
Vin
0.1
-
10 K
HTI
R
1200 ohm
+
VB
X1 Instr.
Amplifier
R
-
VB
To Dist.
Analyzer
HTO+
+
FIGURE 1 – HYBRID AMPLIFIER DISTORTION TEST
http://www.belling.com.cn
-6-
8/15/2006
Wrote by 2006
Total
11 Pages
BELLING [ SHANGHAI BELLING CO., LTD. ]
