HC55120 Ver la hoja de datos (PDF) - Renesas Electronics
Número de pieza
componentes Descripción
Fabricante
HC55120 Datasheet PDF : 36 Pages
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Electrical Specifications
(•) TA = -40°C to 85°C, VCC = +5V 5%, VBH = -48V, VBL = -24V, PTG = Open, RP1 = RP2 = 0ZT = 120k, RLIM = 38.3k, RD = 50k, RDC_RAC = 20k,
ROH = 40k, CH = 0.1F, CDC = 4.7F, CRT/REV = 0.47F, GND = 0V, RL = 600. Unless Otherwise Specified. Symbol used to indicate the test
applies to the part. (NA) symbol used to indicate the test does not apply to the part.
PARAMETER
2-WIRE PORT
TEST CONDITIONS
MIN
TYP
MAX
UNITS
HC55120 HC55121 HC55130/1 HC55140/1 HC55142/3 HC55150/1
Overload Level, Off Hook
Forward and Reverse
1% THD, IDCMET 18mA
(Note 2, Figure 1)
3.2
-
-
VPEAK
Forward
Only
•
Forward
Only
•
•
•
Overload Level, On Hook
Forward and Reverse
1% THD, IDCMET 5mA
(Note 3, Figure 1)
1.3
-
-
VPEAK
Forward
Only
•
Forward
Only
•
•
•
Input Impedance (Into Tip and Ring)
-
ZT / 200
-
•
•
•
•
•
•
Longitudinal Impedance (Tip, Ring) 0 < f < 100Hz (Note 4, Figure 2)
Forward and Reverse
-
0
-
/Wire
Forward
Only
•
Forward
Only
•
•
•
LONGITUDINAL CURRENT LIMIT (TIP, RING)
On-Hook, Off-Hook (Active),
No False Detections, (Loop
28
-
- mARMS/Wire Forward
Forward
RL = 736
Current), LB > 45dB (Notes 5, 6,
Only
•
Only
•
•
•
Forward and Reverse
Figures 3A, 3B)
VTR
RL
IDCMET
TIP
VTX
ERX
RING VRX
FIGURE 1. OVERLOAD LEVEL (OFF HOOK, ON HOOK)
1VRMS
AT
TIP
VTX
0 < f < 100Hz
EL C
300
VT
300
AR
VR
RING
VRX
LZT = VT/AT
LZR = VR/AR
FIGURE 2. LONGITUDINAL IMPEDANCE
368
A TIP
VTX
10F C
EL
10F C
368
A RING VRX
SHD
FIGURE 3A. LONGITUDINAL CURRENT LIMIT ON-HOOK (ACTIVE)
368
A TIP
VTX
C
VTX
EL
368
A RING VRX
SHD
FIGURE 3B. LONGITUDINAL CURRENT LIMIT OFF-HOOK (ACTIVE)
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