HC55120_06 Datasheet, PDF (5/36 Pages) Intersil Corporation – Low Power Universal SLIC Family

Electrical Specifications
T_A = -40°C to 85°C, V_CC = +5V ±5%, V_BH = -48V, V_BL = -24V, PTG = Open, R_P1 = R_P2 = 0Ω, Z_T = 120kΩ, R_LIM = 38.3kΩ, R_D = 50kΩ, RDC_RAC = 20kΩ,
R_OH = 40kΩ, C_H = 0.1µF, C_DC = 4.7µF, C_RT/REV = 0.47µF, GND = 0V, RL = 600Ω. 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
TEST CONDITIONS
MIN
TYP
MAX
UNITS
HC55120 HC55121 HC55130/1 HC55140/1 HC55142/3 HC55150/1
2-WIRE PORT
Overload Level, Off Hook
Forward and Reverse
Overload Level, On Hook
Forward and Reverse
1% THD, I_DCMET ≥ 18mA
(Note 2, Figure 1)
1% THD, IDCMET ≤ 5mA
(Note 3, Figure 1)
3.2
-
-
V_PEAK
Forward
Only
•
Forward
Only
•
•
•
1.3
-
-
V_PEAK
Forward
Only
•
Forward
Only
•
•
•
Input Impedance (Into Tip and Ring)
- Z_T/200 -
Ω
•
•
•
•
•
•
Longitudinal Impedance (Tip, Ring) 0 < f < 100Hz (Note 4, Figure 2)
Forward and Reverse
-
0
-
Ω/Wire
Forward
Only
•
Forward
Only
•
•
•
LONGITUDINAL CURRENT LIMIT (TIP, RING)
On-Hook, Off-Hook (Active),
No False Detections, (Loop
28
-
- mA_RMS/Wire Forward
Forward
R_L = 736Ω
Current), LB > 45dB (Notes 5, 6,
Only
•
Only
•
•
•
Forward and Reverse
Figures 3A, 3B)
V_TR
R_L
I_DCMET
TIP
V_TX
E_RX
RING VRX
FIGURE 1. OVERLOAD LEVEL (OFF HOOK, ON HOOK)
1V_RMS
A_T
TIP
V_TX
0 < f < 100Hz
E_{L C}
300Ω
V_T
300Ω
A_R
V_R
RING
VRX
LZ_T = V_T/A_T
LZ_R = V_R/A_R
FIGURE 2. LONGITUDINAL IMPEDANCE
368Ω
A TIP
V_TX
10µF C
E_L
10µF C
368Ω
A RING _VRX
SHD
FIGURE 3A. LONGITUDINAL CURRENT LIMIT ON-HOOK (ACTIVE)
368Ω
A TIP
V_TX
C
V_TX
E_L
368Ω
A RING _VRX
SHD
FIGURE 3B. LONGITUDINAL CURRENT LIMIT OFF-HOOK (ACTIVE)