Microchip Technology Microsemi miSLIC Le9642 - Gain Tracking and Noise; Figure 15 - Receive Path (D to A) Gain Tracking (Narrowband); Figure 16 - Transmit Path (a to D) Gain Tracking (Narrowband)

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ZLR964222L Line Module User Guide

Microsemi Corporation Confidential and Proprietary

6.2.3 Gain Tracking and Noise

Figure 15 - Receive Path (D to A) Gain Tracking (Narrowband)

Figure 16 - Transmit Path (A to D) Gain Tracking (Narrowband)

ZLR964222L_SN_003_Ext_100

Main Page

Table of Contents2
Introduction5
Overview5
Design Objectives5
Profiles5
References6
Quick Start Guide7
Required Materials7
Getting Started8
Figure 1 - ZTAP and ZLR964222L Line Module Setup8
Making Test Calls9
Figure 2 - ZLR964222L Line Module9
System Description11
Module Features11
System Features11
Additional Le9642 Device Features11
Circuit Design12
Overview12
Le9642 Device12
ZSI Digital Interface12
Line Interface Circuit13
Surge Protection13
Figure 3 - ZLR964222L Line Interface Circuit13
AC and DC Sense Components14
Buck-Boost Automatic Battery Switching Power Supply (BBABS)14
PNP Driver15
Capacitor Requirements15
Figure 4 - ZLR964222L Buck-Boost ABS Switching Regulator15
High Voltage PNP16
Inductor Requirements16
Switching Diode Requirements16
Compatibility with Xdsl16
Other Design Options16
Single Channel Option Using Le9641 1FXS Tracker17
Figure 5 - Le9641 Mislic Single Channel Population17
Figure 6 - Buck-Boost ABS to Fixed Tracking Buck-Boost Population18
Module Configuration19
Introduction19
Module ID ROM (MID) Default Profiles19
Device Profile19
AC Profile19
DC Profile19
Ringing Profile19
Tone Profile20
Ringing Cadence Profile20
Tone Cadence Profile20
Caller ID Profile20
Profiles Generated with Profile Wizard20
Profile Wizard Menu21
Figure 7 - Profile Wizard Main Menu - ZLR964222L Project File21
Reviewing and Editing Profile Entries22
Running New Profiles22
Figure 8 - Ringing Profile Configuration Example22
Figure 9 - Mini-PBX - Configuration Mode23
Figure 10 - Mini-PBX - Device Configuration23
Performance24
Coefficients and Winslac24
Coefficients24
Narrowband Transmission Performance24
Return Loss24
Figure 11 - Two-Wire Return Loss (Narrowband)24
Figure 12 - Four-Wire Return Loss (Narrowband)25
Attenuation Distortion and Gain26
Figure 13 - Receive Path (D to A) Attenuation Distortion (Narrowband)26
Figure 14 - Transmit Path (a to D) Attenuation Distortion (Narrowband)26
Gain Tracking and Noise27
Figure 15 - Receive Path (D to A) Gain Tracking (Narrowband)27
Figure 16 - Transmit Path (a to D) Gain Tracking (Narrowband)27
Total Distortion and Harmonic Distortion28
Figure 17 - Receive Path (D to A) Total Distortion (Narrowband)28
Figure 18 - Transmit Path (a to D) Total Distortion (Narrowband)28
Wideband Transmission Performance29
Return Loss29
Figure 19 - Two-Wire Return Loss (Wideband)29
Figure 20 - Four-Wire Return Loss (Wideband)29
Attenuation Distortion and Gain30
Figure 21 - Receive Path (D to A) Attenuation Distortion (Wideband)30
Figure 22 - Transmit Path (a to D) Attenuation Distortion (Wideband)30
Gain Tracking and Noise31
Figure 23 - Receive Path (D to A) Gain Tracking (Wideband)31
Figure 24 - Transmit Path (a to D) Gain Tracking (Wideband)31
Total Distortion and Harmonic Distortion32
Figure 25 - Receive Path (D to A) Total Distortion (Wideband)32
Figure 26 - Transmit Path (a to D) Total Distortion (Wideband)32
Power Consumption at DC Feed and Ringing33
Coc Profile Power Consumption33
Default Profile Power Consumption34
Shared Buck-Boost ABS Switching Regulator Performance35
Thermal Performance35
Adaptive Ringing35
Figure 27 - Adaptive Ringing Behaviour, 0 REN to 5REN36
Printed Circuit Board Documentation37
Revision Information37
Parts Placement Strategy37
ZLR964222L Line Module Schematics38
ZLR964222L Bill of Materials44
ZLR964222L Rev B0 Layout Plots45
Figure 28 - Top Etch and Silk Screen45
Figure 29 - Bottom Etch and Silk Screen45
PCB Footprint Recommendation46
Figure 30 - Microsemi 48 Pin QFN PCB Footprint46

Microchip Technology Microsemi miSLIC Le9642 - Gain Tracking and Noise; Figure 15 - Receive Path (D to A) Gain Tracking (Narrowband); Figure 16 - Transmit Path (a to D) Gain Tracking (Narrowband)

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