73M1822/73M1922 Data Sheet
DS_1x22_001
3.11 Transmit Hybrid Cancellation
Table 20 lists the transmit hybrid cancellation characteristics. Unless stated otherwise, test conditions are:
ACZ=00 (600 Ω termination), THEN=1, ATEN=1, DAA=01, TXBST=0. TXM is externally fed back into the
73M1912 to effect cancellation of transmit signal.
Table 20: Transmit Hybrid Cancellation Characteristics
Parameter
Test Condition
Min
–
Nom
26
Max
–
Units
dB
Transmit hybrid cancellation
Offset voltage
Measure RxD in HIC
50% 1’s Density
–
25
50
mV
AC swing
1 kHz sinusoid at Tip
and Ring
0.85
–
0.95
-81
1.05
–
Vpk
Idle noise
300 Hz – 4 kHz at Tip
and Ring
dBm
3.12 Receive Notch Filter
Table 21 lists the receive notch filter characteristics. All measurements taken with RLPNEN=1, TXEN=0,
RXG=00, ATEN=1. RXP is driven with 1 Vpk signal.
Table 21: Receive Notch Filter
Parameter
Test Condition
Min
Nom
Max
Unit
RLPNH=0 (12 kHz Notch)
–
–
–
–
–
–
–
–
–
–
–
300 Hz
0.0
+0.03
+0.04
-50
+/- 0.15
28.8
dB
dB
dB
dB
dB
μs
μs
μs
μs
μs
–
–
1 kHz
Magnitude response
3 kHz
16 kHz
-20
–
Passband Ripple (0.3 kHz – 3.4 kHz)
–
–
300 Hz
1 kHz
28.93
30.25
41.62
9.95
–
Delay
–
3 kHz
–
12 kHz
RLPNH=1 (16 kHz Notch)
–
–
–
–
–
–
–
–
–
–
–
300 Hz
0.0
+0.04
+0.11
-50
dB
–
–
1 kHz
3 kHz
Magnitude response
dB
dB
dB
μs
μs
μs
μs
μs
12 kHz
-20
–
Passband Ripple (0.3 kHz – 3.4 kHz)
+/- 0.15
30.53
30.66
31.93
42.26
4.74
–
–
300 Hz
1 kHz
–
Delay
–
3 kHz
16 kHz
26
Rev. 1.6
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
