SI3200-X-FS SILABS [Silicon Laboratories], SI3200-X-FS Datasheet - Page 12
SI3200-X-FS
Manufacturer Part Number
SI3200-X-FS
Description
Manufacturer
SILABS [Silicon Laboratories]
Datasheet
1.SI3200-X-FS.pdf
(112 pages)
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Si3220/25
12
Table 6. Linefeed Characteristics
(V
Parameter
Maximum Loop Resistance (adaptive
linefeed disabled
Maximum Loop Resistance (adaptive
linefeed enabled
DC Loop Current Accuracy
DC Open Circuit Voltage Accuracy
DC Differential Output Resistance
DC On-Hook Voltage Accuracy—Ground
Start
DC Output Resistance—Ground Start
DC Output Resistance—Ground Start
Loop Closure Detect Threshold Accuracy
Ground Key Detect Threshold Accuracy
Ring Trip Threshold Accuracy
Ringing Amplitude, Si3220
Sinusoidal Ringing Total
Harmonic Distortion
Ringing Frequency Accuracy
Ringing Cadence Accuracy
Calibration Time
Notes:
DD
1. Adaptive linefeed is enabled when the VOCDELTA RAM address is set to a non-zero value and is disabled when
2. R
3. Ringing amplitude is set for 93 V peak using the RINGAMP RAM address and measured at TIP-RING using no series
, V
DD1
VOCDELTA is set to 0.
protection resistance.
DC,MAX
– V
DD4
is the maximum dc resistance of the CPE; hence the specified total loop resistance is R
1
1
=
)
)
3.13 to 5.25 V, T
3
A
=
0 to 70 °C for K/F-Grade, –40 to 85 °C for B/G-Grade)
Symbol
V
R
R
R
R
V
R
R
OHTO
LOOP
LOOP
ROTO
TOTO
RING
THD
DO
48 V dc offset, R
I
I
Rev. 1.2
I
LOOP
LOOP
RING
Open circuit, V
VRING = 70 Vpk, no offset,
I
20 V dc offset, I
Accuracy of ON/OFF times
5 REN load, R
RING
Active Mode; V
Si3220, dc detection,
Si3225, dc detection,
Si3220, ac detection,
f = 16 Hz to 100 Hz
R
R
<I
↑CAL to ↓CAL bit
= 18 mA, V
= 18 mA, V
<I
Test Condition
DC,MAX
VOCDELTA = 0
DC,MAX
VOCDELTA ≠ 0
LIM
V
ABIAS = 8 mA
ABIAS = 8 mA
V
TIP to ground
I
I
LIM
I
V
THR
THR
I
I
BATH
LIM
RING
TH
LOOP
TIP
; V
; RING to ground
= 80 mA
= 18 mA
RING
= 13 mA
= 13 mA
– V
2
2
= –51 V
= 100 V
< I
= 430 Ω,
= 430 Ω,
BATH
LOOP
loop
RING
TH
OC
BAT
BAT
LIM
wrt ground,
= 13 mA
= 48 V,
= 1500 Ω
= 100 V
= –52 V,
= –52 V,
= 0 Ω,
1870
2030
Min
300
93
82
—
—
—
—
—
—
—
—
—
—
—
—
—
—
±1.5
Typ
320
320
±10
±10
LOOP
±4
—
—
—
—
—
—
—
—
—
—
—
—
2
+ R
Max
±4.5
600
±10
±15
±15
±50
±4
±4
±5
±2
±1
—
—
—
—
—
—
—
—
DC,MAX
Unit
V
V
mA
mA
mA
ms
ms
kΩ
.
%
%
%
%
%
Ω
Ω
V
Ω
V
Ω
PK
PK
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