SI3232 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI3232

DUAL PROGRAMMABLE CMOS SLIC WITH LINE MONITORING

Silicon Laboratories 

Si3232

Table 5. Linefeed Characteristics

(VDD, VDD1–VDD4 = 3.13 to 3.47 V, TA = 0 to 70 °C for K-Grade, –40 to 85 °C for B-Grade)

Parameter

Symbol

Test Condition

Min Typ Max Unit

DC Loop Current Accuracy

ILIM = 18 mA

—

— ±10

%

DC Open Circuit Voltage

Accuracy

Active Mode; VOC = 48 V,

VTIP – VRING

—

—

±4

V

DC Differential Output

RDO

Resistance

ILOOP < ILIM

— 320 —

Ω

DC On-Hook Voltage

VOHTO

IRING<ILIM; VRING wrt ground

—

—

±4

V

Accuracy—Ground Start

VRING = –51 V

DC Output Resistance—

RROTO

IRING<ILIM; RING to ground

— 320 —

Ω

Ground Start

DC Output Resistance—

Ground Start

RTOTO

TIP to ground

300 —

—

kΩ

Loop Closure Detect

Threshold Accuracy

ITHR = 13 mA

— ±10 ±15

%

Ground Key Detect

Threshold Accuracy

ITHR = 13 mA

— ±10 ±15

%

Ring Trip Threshold

Accuracy

Ringing Amplitude*

Sinusoidal Ringing Total

Harmonic Distortion

ac Detection, VRING = 70 VPK,

—

±4

±5

mA

ITH = 80 mA

VRING

dc detection,

20 V dc offset, ITH = 13 mA

Open circuit, VBATH = 100 V

5 REN load, RLOOP = 0 Ω,

VBATH = 100 V

— ±1.5 ±2

mA

93

—

—

VPK

82

—

—

VPK

RTHD

—

2

—

%

Ringing Frequency Accuracy

f = 16 Hz to 100 Hz

—

—

±1

%

Ringing Cadence Accuracy

Accuracy of ON/OFF times

—

— ±50

ms

Calibration Time

↑CAL to ↓CAL bit

—

— 600

ms

Loop Voltage Sense

Accuracy

Accuracy of boundaries for each —

±2

±4

%

output Code;

VTIP – VRING = 48 V

Loop Current Sense

Accuracy

Accuracy of boundaries for each —

±7 ±10

%

output code;

ILOOP = 18 mA

Power Alarm Threshold

Accuracy

Power Threshold = 300 mW

—

— ±25

%

*Note: Ringing amplitude is set for 93 V peak using the RINGAMP RAM address and measured at TIP-RING using no series

protection resistance.

10

Preliminary Rev. 0.96

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