HC5513_03 Datasheet, PDF (16/20 Pages) Intersil Corporation – TR909 DLC/FLC SLIC with Low Power Standby

HC5513
14. Two-Wire to Four-Wire (Metallic to V_TX) Voltage Gain - The
2-wire to 4-wire (metallic to V_TX) voltage gain is computed
using the following equation.
G_2-4 = (V_TX/V_TR), E_G = 0dBm0, V_TX, V_TR, and E_G are defined
in Figure 7.
15. Current Gain RSN to Metallic - The current gain RSN to
Metallic is computed using the following equation:
K = I_M [(R_DC1 + R_DC2)/(V_RDC - V_RSN)] K, I_M, R_DC1, R_DC2,
V_RDC and V_RSN are defined in Figure 8.
16. Two-Wire to Four-Wire Frequency Response - The 2-wire to
4-wire frequency response is measured with respect to
E_G = 0dBm at 1.0kHz, E_RX = 0V, I_DCMET = 23mA. The frequency
response is computed using the following equation:
F_2-4 = 20 • log (V_TX/V_TR), vary frequency from 300Hz to
3.4kHz and compare to 1kHz reading.
V_TX, V_TR, and E_G are defined in Figure 9.
17. Four-Wire to Two-Wire Frequency Response - The 4-wire to
2-wire frequency response is measured with respect to
E_RX = 0dBm at 1.0kHz, E_G = 0V, I_DCMET = 23mA. The frequency
response is computed using the following equation:
F_4-2 = 20 • log (V_TR/E_RX), vary frequency from 300Hz to
3.4kHz and compare to 1kHz reading.
V_TR and E_RX are defined in Figure 9.
18. Four-Wire to Four-Wire Frequency Response - The 4-wire to
4-wire frequency response is measured with respect to
E_RX = 0dBm at 1.0kHz, E_G = 0V, I_DCMET = 23mA. The frequency
response is computed using the following equation:
F_4-4 = 20 • log (V_TX/E_RX), vary frequency from 300Hz to
3.4kHz and compare to 1kHz reading.
V_TX and E_RX are defined in Figure 9.
19. Two-Wire to Four-Wire Insertion Loss - The 2-wire to 4-wire
insertion loss is measured with respect to E_G = 0dBm at 1.0kHz
input signal, E_RX = 0, I_DCMET = 23mA and is computed using
the following equation:
L_2-4 = 20 • log (V_TX/V_TR)
where: V_TX, V_TR, and E_G are defined in Figure 9. (Note: The
fuse resistors, R_F, impact the insertion loss. The specified
insertion loss is for R_F = 0).
20. Four-Wire to Two-Wire Insertion Loss - The 4-wire to 2-wire
insertion loss is measured based upon E_RX = 0dBm, 1.0kHz
input signal, E_G = 0, I_DCMET = 23mA and is computed using
the following equation:
L_4-2 = 20 • log (V_TR/E_RX)
Where: V_TR and E_RX are defined in Figure 9.
21. Two-Wire to Four-Wire Gain Tracking - The 2-wire to 4-wire
gain tracking is referenced to measurements taken for
Pin Descriptions
E_G = -10dBm, 1.0kHz signal, E_RX = 0, I_DCMET = 23mA and is
computed using the following equation.
G_2-4 = 20 • log (V_TX/V_TR) vary amplitude -40dBm to +3dBm, or
-55dBm to -40dBm and compare to -10dBm reading.
V_TX and V_TR are defined in Figure 9.
22. Four-Wire to Two-Wire Gain Tracking - The 4-wire to 2-wire
gain tracking is referenced to measurements taken for
E_RX = -10dBm, 1.0kHz signal, E_G = 0, I_DCMET = 23mA and is
computed using the following equation:
G_4-2 = 20 • log (V_TR/E_RX) vary amplitude -40dBm to +3dBm, or
-55dBm to -40dBm and compare to -10dBm reading.
V_TR and E_RX are defined in Figure 9. The level is specified at the
4-wire receive port and referenced to a 600Ω impedance level.
23. Two-Wire Idle Channel Noise - The 2-wire idle channel noise
at V_TR is specified with the 2-wire port terminated in 600Ω (R_L)
and with the 4-wire receive port grounded (Reference Figure 10).
24. Four-Wire Idle Channel Noise - The 4-wire idle channel noise
at V_TX is specified with the 2-wire port terminated in 600Ω (R_L).
The noise specification is with respect to a 600Ω impedance
level at V_TX. The 4-wire receive port is grounded (Reference
Figure 10).
25. Harmonic Distortion (2-Wire to 4-Wire) - The harmonic dis-
tortion is measured with the following conditions. E_G = 0dBm at
1kHz, I_DCMET = 23mA. Measurement taken at V_TX. (Reference
Figure 7).
26. Harmonic Distortion (4-Wire to 2-Wire) - The harmonic dis-
tortion is measured with the following conditions. E_RX = 0dBm0.
Vary frequency between 300Hz and 3.4kHz, I_DCMET = 23mA.
Measurement taken at V_TR. (Reference Figure 9).
27. Constant Loop Current - The constant loop current is calcu-
lated using the following equation:
I_L = 2500 / (R_DC1 + R_DC2)
28. Standby State Loop Current - The standby state loop current
is calculated using the following equation:
I_L = [|V_BAT| - 3] / [R_L +1800], T_A = 25^oC
29. Ground Key Detector - (TRIGGER) Increase the input current
to 8mA and verify that DET goes low.
(RESET) Decrease the input current from 17mA to 3mA and
verify that DET goes high.
(Hysteresis) Compare difference between trigger and reset.
30. Power Supply Rejection Ratio - Inject a 100mV_RMS signal
(50Hz to 4kHz) on V_BAT, V_CC and V_EE supplies. PSRR is com-
puted using the following equation:
PSRR = 20 • log (V_TX/V_IN). V_TX and V_IN are defined in Figure 12.
PDIP
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SYMBOL
BGND
V_CC
RINGRLY
V_BAT
R_SG
DESCRIPTION
Battery Ground - To be connected to zero potential. All loop current and longitudinal current flow from this ground.
Internally separate from AGND but it is recommended that it is connected to the same potential as AGND.
5V power supply.
Ring relay driver output.
Battery supply voltage, -24V to -56V.
Saturation guard programming resistor pin.
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