Si3035
Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter1
Symbol
Min2
0
Max2
70
Test Condition
Typ
Unit
Ambient Temperature
Si3021 Supply Voltage, Analog
Si3021 Supply Voltage, Digital3
Notes:
TA
VA
VD
K-Grade
25
5.0
°C
V
4.75
3.0
5.25
5.25
3.3/5.0
V
1. The Si3035 specifications are guaranteed when the typical application circuit (including component
tolerances) and any Si3021 and any Si3012 are used. See Figure 16 on page 15 for typical application
circuit.
2. All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
Typical values apply at nominal supply voltages and an operating temperature of 25 °C unless otherwise stated.
3. The digital supply, VD, can operate from either 3.3 V or 5.0 V. The Si3021 supports interface to 3.3 V logic when
operating from 3.3 V. The 3.3 V operation applies to both the serial port and the digital signals
RGDT, OFHK, RESET, M0, and M1.
Table 2. Loop Characteristics
(VA = Charge Pump, VD = +3.3 V ± 0.3 V, TA = 0 to 70°C for K-Grade, Refer to Figure 1)
Parameter
Symbol
VTR
Test Condition
IL = 20 mA
Min
—
Typ
—
Max
7.7
—
Unit
V
DC Termination Voltage
DC Termination Voltage
DC Ring Current (with caller ID)
DC Ring Current (w/o caller ID)
AC Termination Impedance
Operating Loop Current
Loop Current Sense Bits
Ring Voltage Detect
VTR
IL = 105 mA
12
—
—
V
IRDC
IRDC
ZACT
ILP
—
1
mA
µA
Ω
—
—
20
—
—
600
—
20
180
13
15
—
120
—
mA
mA
VRMS
Hz
µA
—
LCS
VRD
FR
LCS = Fh
155
18
26
68
1
Ring Frequency
—
On-Hook Leakage Current
Ringer Equivalence Num. (with caller ID)
Ringer Equivalence Num. (w/o caller ID)
ILK
VBAT = –48 V
—
REN
REN
—
1.0
0.2
1.67
—
—
—
TIP
+
600 Ω
10 µF
IL
VTR
Si3012
–
RING
Figure 1. Test Circuit for Loop Characteristics
4
Rev. 1.2
ETC [ ETC ]
