Si3230
9
8
7
6
Fundamental
Output Power
5
(dBm0)
Acceptable
Region
4
3
2.6
2
1
0
1
2
3
4
5
6
7
8
9
Fundamental Input Power (dBm0)
Figure 1. Overload Compression Performance
Table 4. Linefeed Characteristics
(V
DDA
, V
DDD
= 3.13 to 5.25 V, T
A
= 0 to 70°C for K-Grade, –40 to 85°C for B-Grade)
Parameter
Loop Resistance Range
DC Loop Current Accuracy
DC Open Circuit Voltage
Accuracy
DC Differential Output
Resistance
DC Open Circuit Voltage—
Ground Start
DC Output Resistance—
Ground Start
DC Output Resistance—
Ground Start
Loop Closure/Ring Ground
Detect Threshold Accuracy
Ring Trip Threshold
Accuracy
Ring Trip Response Time
Ring Amplitude
Ring DC Offset
Symbol
R
LOOP
Test Condition
See note.*
I
LIM
= 29 mA, ETBA = 4 mA
Active Mode; V
OC
= 48 V,
V
TIP
– V
RING
Min
0
–10
–4
—
–4
—
150
–20
–10
—
44
0
Typ
—
—
—
160
—
160
—
—
—
—
—
—
Max
160
10
4
—
4
—
—
20
10
—
—
—
Unit
Ω
%
V
Ω
V
Ω
kΩ
%
%
R
DO
V
OCTO
R
ROTO
R
TOTO
I
LOOP
< I
LIM
I
RING
<I
LIM
; V
RING
wrt ground
V
OC
= 48 V
I
RING
<I
LIM
; RING to ground
TIP to ground
I
THR
= 11.43 mA
I
THR
= 40.64 mA
User Programmable Register 70
and Indirect Register 36
V
TR
R
OS
5 REN load; sine wave;
R
LOOP
= 160
Ω,
V
BAT
= –75 V
Programmable in Indirect
Register 19
V
rms
V
Preliminary Rev. 0.96
7
SILABS [ SILICON LABORATORIES ]
