MH88617AD-PI Просмотр технического описания (PDF) - Mitel Networks
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MH88617AD-PI Datasheet PDF : 16 Pages
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MH88617
Advance Information
Relay Driver
Mechanical Data
An open collector output is provided as a driver for
an external relay. Applying 5V to the RDI pin will
cause the RDO pin to sink current to ground. A
flyback diode must be connected across the relay
coil to protect this output.
The DC resistance of the relay coil must exceed
230Ω
See Figure 11, 12, 13, and 14 for details of the
mechanical specification.
Line Conditions
Programming Components
Line
Balance VX VR
Z1
Impedance Impedance Gain Gain
Z2
R1
R2
600Ω
600Ω
0dB 0dB
30k
18k + 18k T 36k
470pF
110k
600Ω
600Ω
4dB -4dB
30k
28k5 + 28k5 T 57k
330pF
180k
600Ω
350Ω+1KΩ 0dB 0dB
//210nF
60k//30k
18k + 18k T 36k
(10k3+5.3nF)
110k
370Ω+620Ω/ 370Ω+620Ω 0dB 0dB 40k//(1.2nF+ 32k5)
/310nF
//310nF
18k + 18k T
100pF
36k (124k//1.5nF)
+ 64k
220Ω+820Ω/ 220Ω+820Ω 0dB 0dB
/115nF
//115nF
41k//(630pF+3k)
36k
36k (164k//550pF)
+ 34k
900Ω
900Ω
0dB 0dB
38k9
18k+18k T 36k
330pF
174k
270Ω+750Ω/ 270Ω+750Ω 0dB 0dB 40k3//(11k5+730pF)
/150nF
//150nF
18k+18k T
100pF
36k (150k//760pF)
+ 48k5
Table 1 - External Programming Components
Note: The programming component values shown, give the optimum performance in terms of gain accuracy, return loss and THL. A
compromise is these values can be made if a reduction in performance is acceptable.
2-162
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