Z02215
Single-Chip Modem
57
(MOVs) or Gas Discharge Tubes (GDTs). The shunt relay reduces the DAA impedance
during pulse dialing. This relay is required for certain country approvals. The CID relay
provides a signal path (through C4) to receive Caller ID signals without taking the line off-
hook.
Data Pump Version 0x50 , External Hybrid, V.22bis 2400 bps
Line Type: Flat
Receive Level (line): -30 dBm
10^7 bits per sample
1 dB S/N steps
AGC & AEQ frozen
1.E-02
Data Pump Version 0x50, External Hybrid, V.22 1200 bps
Line Type: Flat
Receive Level (line): -30 dBm
10^7 bits per sample
1 dB S/N steps
AGC & AEQ frozen
1.E-02
1.E-03
1.E-03
BER
V.22bis low band
V.22bis high band
1.E-04
V.22 low band
V.22 high band
1.E-04
1.E-05
1.E-05
1.E-06
12
13
14
15
S/N dB
16
17
18
1.E-06
5
6
7
8
9
10
Data Pump Version 0x50, External Hybrid, V.23
Line Type: Flat Receive Level (line): -30 dBm
10^6 bits per sample
1 dB S/N steps
AGC & AEQ frozen
Data Pump Version 0x50, External Hybrid, V.21 300 bps
Line Type: Flat
Receive Level (line): -30 dBm
10^6 bits per sample 1 dB S/N steps AGC & AEQ frozen
1.E-02
1.E-02
1.E-03
V.23, 1200 bps
V.23, 75 bps
1.E-03
V.21 low band
V.21 high band
1.E-04
1.E-04
1.E-05
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10 11 12 13
1.E-05
1
2
3
4
5
6
7
Figure 6.
Typical Performance Data
PRELIMINARY
PS001901-MOD0300