SI3208 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI3208

DUAL PROSLIC® WITH DC-DC CONTROLLER

Silicon Laboratories 

Si3226/7

Si3208/9

Table 5. Linefeed Characteristics

(VDD = 3.13 to 3.47 V, TA = 0 to 70 °C for F-Grade, –40 to 85 °C for G-Grade)

Parameter

Symbol

Test Condition

Min Typ Max

Maximum Loop Resistance RLOOP

RDC,MAX = 430 Ω

—

ILOOP = 18 mA, VBAT = –52V

DC Loop Current Accuracy

ILIM = 18 mA

—

DC Open Circuit Voltage

Accuracy

Active Mode; VOC = 48 V,

—

VTIP – VRING

DC Differential Output

RDO

Resistance

ILOOP < ILIM

160

—

2000

—

10

—

4

—

640

DC On-Hook Voltage

VOHTO IRING<ILIM; VRING wrt ground,

—

—

4

Accuracy—Ground Start

VRING = –51 V

DC Output

RROTO

IRING<ILIM; RING to ground

160

—

640

Resistance—Ground Start

DC Output Resistance—

Ground Start

RTOTO

TIP to ground

400

—

—

Loop Closure Detect

Threshold Accuracy

ITHR = 13 mA

—

—

10

Ground Key Detect

Threshold Accuracy

ITHR = 13 mA

—

—

10

Ring Trip

Threshold Accuracy

Ringing Amplitude

Sinusoidal Ringing Total

Harmonic Distortion

AC detection,

—

—

4

VRING = 70 Vpk, no offset,

ITH = 80mA

DC detection,

—

—

1

20 V dc offset, ITH = 13 mA

DC Detection,

—

—

3

48 V DC offset, Rloop = 1500 Ω

VRING

Open circuit, VBAT = –110 V

108

—

—

5 REN load, RLOOP = 0 Ω,

99

—

—

VBAT = –110 V, RDO = 160 Ω

Open Circuit, VBAT = –135 V 133

—

—

5 REN load, RLOOP = 0 Ω,

121

—

—

VBAT = –130 V, RDO = 160 Ω

RTHD

—

2

—

Ringing Frequency Accuracy

f = 16 Hz to 100 Hz

—

—

1

Ringing Cadence Accuracy

Accuracy of ON/OFF times

—

—

50

Calibration Time

↑CAL to ↓CAL bit

—

—

TBD

Loop Voltage Sense

Accuracy

Accuracy of boundaries for

—

2

4

each output Code;

VTIP – VRING = 48 V

*Note: Ringing amplitude is set for 93 V peak and measured at TIP-RING using no series protection resistance.

Unit

Ω

%

V

Ω

V

Ω

kΩ

%

%

mA

mA

mA

VPK

VPK

VPK

VPK

%

%

ms

ms

%

8

Preliminary Rev. 0.33

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