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MH88617AD-PI

Programmable SLIC with Ringing Amplification

Mitel Networks 

MH88617

Advance Information

+5V

1K -48V +5V -5V +90V

R1

Z2

R2

Vs

LCA LR VBAT VCC VEE DCRI SHK

VX

TIP

100uF

+

GVX

VR

ZA RDI RDO

DUT

ESI ESE GND RC

10H

1kΩ

I=24mA

RING

RV

100uF

+

Z1

100Ω

1K

Ringing

Source

1.2Vrms

20Hz

Zin (600Ω)

Gain = 20 * Log (V(Zin) / Vs)

Z1 = 30kΩ

Z2 = 18k + 18K T 470pF

R2 = 110k

R1 = 36k

Figure 7 - 4-2 Wire Gain Test Circuit

+5V

1K -48V +5V -5V +90V

R1

Z2

R2

VX

LCA LR

GVX

VR

ZA RDI RDO

VBAT VCC VEE DCRI

DUT

ESI ESE GND RC

SHK

TIP

10H

1kΩ

I=24mA

RING

RV

100uF

Zin

+

V1

100uF

+

300Ω

Vs

300Ω

Z1

100Ω

1K

Return Loss = 20 * Log (2V1/Vs)

Ringing

Source

1.2Vrms

20Hz

Z1 = 30kΩ

Z2 = 18k + 18K T 470pF

R2 = 110k

R1 = 36k

2-168

Figure 8 - Return Loss

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