am79m535 Advanced Micro Devices, am79m535 Datasheet

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am79m535

Manufacturer Part Number
am79m535
Description
Metering Subscriber Line Interface Circuit
Manufacturer
Advanced Micro Devices
Datasheet

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Am79M535
Metering Subscriber Line Interface Circuit
DISTINCTIVE CHARACTERISTICS
BLOCK DIAGRAM
Notes:
1. Am79M535—E0 and E1 inputs; ring relay driver sourced internally to BGND; ground-key filter pin.
2. Current gain (K
B(RING)
Programmable constant-current feed
Line-feed characteristics independent of
battery variations
Programmable loop-detect threshold
On-chip switching regulator for low-power
dissipation
Pin for external ground-key noise filter
capacitor available
A(TIP)
BGND
VREG
VBAT
HPA
HPB
DA
DB
L
1
) = 1000.
Two-Wire
Interface
CHS
Switching Regulator
Signal Transmission
Ground-Key
Power-Feed
Controller
Detector
QBAT
CHCLK
Ground-key detect
Two-wire impedance set by single external
impedance
Performs polarity reversal
Tip Open state for ground-start lines
Supports 2.2 Vrms metering (12 and 16 kHz)
On-hook transmission
VCC
Ring-Trip Detector
Ring Relay Driver
Off-Hook Detector
Input Decoder
and Control
VEE
Publication# 16856 Rev: E
Issue Date: October 1999
AGND
RINGOUT
C1
C2
C3
E0
GKFIL
16856B-001
E1
DET
VTX
RD
RSN
RDC
Amendment: /0

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am79m535 Summary of contents

Page 1

... HPB B(RING VREG L VBAT BGND Notes: 1. Am79M535—E0 and E1 inputs; ring relay driver sourced internally to BGND; ground-key filter pin. 2. Current gain ( 1000. 1 Ground-key detect Two-wire impedance set by single external impedance Performs polarity reversal Tip Open state for ground-start lines Supports 2.2 Vrms metering (12 and 16 kHz) ...

Page 2

... Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device. Consult JC the local AMD sales office to confirm availability of specific valid combinations, to check on newly released combinations, and to obtain additional data on AMD’s standard military grade products. Am79M535 Data Sheet ...

Page 3

CONNECTION DIAGRAM Top View Notes: 1. Pin 1 is marked for orientation thermal conduction pin tied to substrate (QBAT). 3. RSVD = Reserved. Do not connect to this pin ...

Page 4

... Regulated Voltage. Provides negative power supply for power amplifiers, connection point for inductor, filter capacitor, and chopper stabilization. VTX Output Transmit Audio. This output is 0.510 times the A(TIP) and B(RING) metallic voltage. VTX also sources the two-wire input impedance programming network. 4 Description Am79M535 Data Sheet is RDC . BAT ...

Page 5

ABSOLUTE MAXIMUM RATINGS Storage temperature . . . . . . . . . . . . – +150 C V with respect to AGND/DGND . . .–0 +7 with respect to AGND/DGND ...

Page 6

... C to +70 C –1* 0 dBm, 1 kHz, – +85 C –1 300 Hz to 3400 Hz Relative to 1 kHz +70 C – + dBm to –55 dBm, ref 0 dBm +70 C – +85 C Am79M535 Data Sheet Min Typ Max Unit Note 3 –35 +35 –30 +30 mV – ...

Page 7

ELECTRICAL CHARACTERISTICS (continued) Description Balance Return Signal (4- to 4-Wire; See Test Circuit B) Gain accuracy Variation with frequency Gain tracking Group delay Total Harmonic Distortion (2- to 4-Wire 2-Wire, See Test Circuits A and B) Total ...

Page 8

... Hz to 3400 Hz –1 3.4 kHz to 50 kHz – 365/R Nominal DET D B(RING) to GND B(RING) to GND Midpoint to GND Source resistance All inputs except E1 Input E1 Am79M535 Data Sheet Min Typ Max Unit Note 35 120 35 80 135 250 mW 135 200 200 400 ...

Page 9

ELECTRICAL CHARACTERISTICS (continued) Description Logic Output (DET) Output Low voltage Output High voltage Relay Driver Outputs (RINGOUT) On voltage Off leakage Clamp voltage RELAY DRIVER SCHEMATIC SWITCHING CHARACTERISTICS Symbol Parameter E1 Low to DET High ( tgkde E1 ...

Page 10

... SWITCHING WAVEFORMS E1 to DET E1 DET tgkde E0 to DET E1 E0 DET tshdd Note: All delays measured at 1.4 V level. 10 tshde tgkde tgkdd tshd0 Am79M535 Data Sheet tshde tgkd0 16856B-003 ...

Page 11

Notes: 1. Unless otherwise noted, test conditions are BAT = – 31. 0 DC1 DC2 DC impedance (Z )= 306 k resistive, receive input summing impedance (Z T ...

Page 12

... Z 2-wire output (usually 2.2 Vrms) and ------------------------------------------------------------------------------------------------------------- - where The values of the identical capacitors from = Am79M535 Data Sheet , and Z is the desired 2-wire AC input F 2WIN , the internal current amplifier T to the RSN pin defined the desired receive gain. form the network connected to the ...

Page 13

DC FEED CHARACTERISTICS 62 Notes: 1. Constant-current region: 2500 ----------- - Active state 2500 OHT state Anti-sat turn-on 1.02 ...

Page 14

... 47.3 V BAT 2000 3000 Load Resistance ( ) b. Loop Current vs. Load Resistance (Typical) A RSN SLIC B RDC Current programmed by R and R DC1 c. Feed Programming Figure 1. DC Feed Characteristics Am79M535 Data Sheet 4000 R DC1 R DC2 16856B-004 ...

Page 15

TEST CIRCUITS VTX A(TIP SLIC AGND RSN B(RING –20 log ( L2 Two- to Four-Wire Insertion Loss VTX A(TIP ...

Page 16

... Single-Frequency Noise A(TIP) B(RING Ground-Key Switching << 90 A(TIP) S SLIC B(RING 600 L H. Loop-Detector Switching Am79M535 Data Sheet R L A(TIP B(RING Current Feed and Ground Key F. Ground-Key Detection V CC 6.2 k A(TIP) DET B(RING) ...

Page 17

PHYSICAL DIMENSION PL032 .485 .447 .495 .453 .585 Pin 1 I.D. .595 .547 .553 .026 .032 TOP VIEW REVISION SUMMARY Revision • Minor changes were made to the data sheet style and format to conform to AMD ...

Page 18

... The contents of this document are provided in connection with Advanced Micro Devices, Inc. ("AMD") products. AMD makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to speci- fications and product descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any in- tellectual property rights is granted by this publication. Except as set forth in AMD’ ...

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