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Si2457/34/15/04
4
Rev. 1.3
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter1
Symbol
Test Condition
Min2
Typ
Max2
Unit
Ambient Temperature
TA
F-grade
G-grade
0
–40
25
70
85
°C
Si2457/34/15/04 Supply Voltage,
Digital3
VD
3.0
3.3
3.6
V
Notes:
1. The Si2457/34/15/04 specifications are guaranteed when the typical application circuit (including component tolerance)
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, operates from 3.0 to 3.6 V.
Table 2. Loop Characteristics
(VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-grade, TA = –40 to 85 °C for G-grade)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
DC Termination Voltage
VTR
IL = 20 mA, ILIM
DCV = 00, MINI = 11, DCR = 0
——
6.0
V
DC Termination Voltage
VTR
IL = 120 mA, ILIM = 0
DCV = 00, MINI = 11, DCR = 0
9—
—
V
DC Termination Voltage
VTR
IL =20mA, ILIM =0
DCV = 11, MINI = 00, DCR = 0
——
7.5
V
DC Termination Voltage
VTR
IL = 120 mA, ILIM = 0
DCV = 11, MINI = 00, DCR = 0
9—
—
V
DC Termination Voltage
VTR
IL =20mA, ILIM =1
DCV = 11, MINI = 00, DCR = 0
——
7.5
V
DC Termination Voltage
VTR
IL =60mA, ILIM =1
DCV = 11, MINI = 00, DCR = 0
40
—
V
DC Termination Voltage
VTR
IL =50mA, ILIM =1
DCV = 11, MINI = 00, DCR = 0
——
40
V
On-Hook Leakage Current
ILK
VTR = –48 V
—
5
A
Operating Loop Current
ILP
MINI = 00, ILIM = 0
10
—
120
mA
Operating Loop Current
ILP
MINI = 00, ILIM = 1
10
—
60
mA
DC Ring Current
DC current flowing through ring
detection circuitry
—1.5
3
A
VRD
RT = 0
12
15
18
VRMS
VRD
RT = 1
18
21
25
VRMS
Ring Frequency
FR
15
—
68
Hz
Ringer Equivalence Number
REN
—
0.2
Notes:
1. ILIM = U67, bit 9; DCV = U67, bits 3:2; MINI = U67, bits 13:12; DCR = U67, bit 7; RT = U67, bit 0.
2. The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected
above the maximum.