HC5513 データシートの表示（PDF） - Harris Semiconductor
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HC5513 Datasheet PDF : 20 Pages
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HC5513
Electrical Specifications TA = -40oC to 85oC, VCC = 5V ±5%, VEE = -5V ±5%, VBAT = -28V, AGND = BGND = 0V, RDC1 = RDC2 =
41.2kΩ, RD = 39kΩ, RSG = ∞, RF1 = RF2 = 0Ω, CHP = 10nF, CDC = 1.5µF, ZL = 600Ω, Unless Otherwise
Specified. All pin number references in the figures refer to the 28 lead PLCC package. (Continued)
PARAMETER
SUPPLY CURRENTS (VBAT = -28V)
ICC, On-Hook
IEE, On-Hook
IBAT, On-Hook
PSRR
VCC to 2 or 4-Wire Port
VEE to 2 or 4-Wire Port
VBAT to 2 or 4-Wire Port
CONDITIONS
Open Circuit State (C1, 2 = 0, 0)
Standby State (C1, 2 = 1, 1)
Active State (C1, 2 = 0,1)
Open Circuit State (C1, 2 = 0, 0)
Standby State (C1, 2 = 1, 1)
Active State (C1, 2 = 0, 1)
Open Circuit State (C1, 2 = 0, 0)
Standby State (C1, 2 = 1, 1)
Active State (C1, 2 = 0, 1)
(Note 30, Figure 12)
(Note 30, Figure 12)
(Note 30, Figure 12)
MIN
TYP
MAX
UNITS
-
-
1.5
mA
-
-
1.7
mA
-
-
5.5
mA
-
-
0.8
mA
-
-
0.8
mA
-
-
2.2
mA
-
-
0.4
mA
-
-
0.6
mA
-
-
3.9
mA
-
40
-
dB
-
40
-
dB
-
40
-
dB
-48V SUPPLY
5V SUPPLY
-5V SUPPLY
RL
600Ω
100mVRMS, 50Hz TO 4kHz
TIP
VTX
27
19
RT
PSRR = 20 log (VT X/VIN)
600kΩ
VTX
RING RSN
28
16
RRX
300kΩ
FIGURE 12. POWER SUPPLY REJECTION RATIO
Circuit Operation and Design Information
The HC5513 is a current feed voltage sense Subscriber Line
Interface Circuit (SLIC). This means that for short loop
applications the SLIC provides a programed constant
current to the tip and ring terminals while sensing the tip to
ring voltage.
The following discussion separates the SLIC’s operation into
its DC and AC path, then follows up with additional circuit
and design information.
Constant Loop Current (DC) Path
SLIC in the Active Mode
The DC path establishes a constant loop current that flows
out of tip and into the ring terminal. The loop current is pro-
grammed by resistors RDC1, RDC2 and the voltage on the
RDC pin (Figure 13). The RDC voltage is determined by the
voltage across R1 in the saturation guard circuit. Under
7
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