Monolithic Linear LA8520M Audio Signal-Processing with Switc

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Monolithic Linear LA8520M Audio Signal-Processing with Switc

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Ordering number EN6075
Monolithic Linear
LA8520M
Audio Signal-Processing with Switching
Overview
LA8520M switching audio signal-processing facsimile units telephones. integrates crosspoint switch, power amplifier, electronic volume control, microphone amplifier, other functions single chip.
system: seven 4-dB steps, receiver amplifier system: 3-dB steps) switching noise, crosstalk characteristics (crosspoint switch)
Package Dimensions
unit: 3129-MFP36SD
[LA8520M]
Applications
Personal facsimile units telephones
Functions
Crosspoint switch (equivalent switch) power amplifier Electronic volume control Serial interface
15.3 2.25 2.5max 10.5 0.65 0.25
Features
Built-in power amplifier load): Pomax Electronic volume control (BTL power amplifier
0.85
Specifications
Maximum Ratings 25°C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg 70°C (Mounted glass-epoxy board: 114.3 76.1 mm3) Conditions Ratings +150 Unit
Operating Conditions 25°C
Parameter Recommended supply voltage Allowable operating supply voltage range Symbol VCCop VCCopbtl Conditions Ratings Unit
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO products described contained herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
30499RM (OT) 6075-1/17
SANYO: MFP36SD
LA8520M Electrical Characteristics 25°C, kHz,
Parameter Crosspoint switch voltage gain Crosspoint switch maximum input level Crosspoint switch output noise voltage Microphone amplifier/TR amplifier voltage gain Microphone amplifier/TR output distortion Microphone amplifier/TR equivalent input noise voltage Microphone amplifier/TR maximum voltage gain Receiver amplifier/OGM amplifier voltage gain Receiver amplifier/OGM amplifier output distortion Operational amplifier voltage gain Operational amplifier output distortion amplifier output level amplifier output distortion Handset amplifier output level Handset amplifier output distortion Handset amplifier attenuator level Handset amplifier attenuator level Handset amplifier attenuator level Electronic volume control output level Electronic volume control step size Electronic volume control output noise voltage [BTL Power Amplifier] Voltage gain Total harmonic distortion Maximum output power Ripple rejection ratio Output noise voltage [CPU Interface] Clock frequency Input signal high level Input signal level [VREF Current Drain] Internal reference voltage (the voltage) Quiescent current Quiescent current Vref Icco1 Icco2 With power amplifier crosspoint switch With power amplifier crosspoint switch 2.25 14.5 Gpwr THDpw Pomax SVRR Nopw dBV, dBV, frin Vrin dBV, kHz, 18.2 19.7 21.2 µVrms Symbol Vimax Nosw Gmic THDmc Nimc Gmax THDre THDop Vodr THDdr Vohd THDhd Att1 Att2 Att3 Voevr Wevr Noevr dBV, IN(8), OUT(32), sw(10) dBV, IN(8), OUT(32), sw(10) dBV, IN(9), OUT(34), sw(0B) dBV, IN(9), OUT(34), sw(0B) address (51) address (52) address (53) dBV, IN(9), OUT(28), sw(2D) dBV, IN(9), OUT(28), sw(2D) kHz, OUT(28) 3.45 -22.9 -16.1 Conditions Ratings -2.5 -0.5 -13.6 +0.5 0.55 4.15 -20.4 -11.1 4.85 -17.9 Unit µVrms µVrms µVrms
6075-2/17
LA8520M
Power supply Units (resistance: capacitance:
Block Diagram Application
6075-3/17
LA8520M Test Circuit Diagram
Power supply
Units (resistance: capacitance:
Data generator
6075-4/17
LA8520M Serial Data Format
Setting crosspoint switch control switch address (hexadecimal binary) Controls on/off state crosspoint switch control switch. Crosspoint switch amplifier Crosspoint switch off, amplifier (The electronic volume control attenuator either Address table
Input Output DOOR LINE HAND DOOR
Other addresses Address Mode crosspoint switches off, default settings control switches power amplifier (The default state off.) Electronic volume control Default setting Electronic volume control Electronic volume control Electronic volume control Electronic volume control Electronic volume control Electronic volume control Electronic volume control Handset amplifier attenuator Default setting Handset amplifier attenuator Handset amplifier attenuator Handset amplifier attenuator
6075-5/17
LA8520M Serial Data Timing
fMAX (Maximum clock frequency) (Low-level clock pulse width) (High-level clock pulse width) (Chip enable setup time) (Chip enable hold time) (Data setup time) (Data hold time) (Chip enable pulse time)
least least least least least least least
6075-6/17
LA8520M Usage Notes Microphone amplifiers Since these amplifiers designed high gain (they support gains dB), they cannot used buffer amplifiers. lower gains result loss phase margin oscillation. Therefore, gain must value least Handset amplifier output (pin resistor least must inserted series this output connected directly dynamic speaker. power amplifier
Input
phase compensation capacitor required high-frequency noise reduction capacitor used. Also, phase compensation capacitors should placed close possible pins, with located closest. Inter-pin shorting This damaged destroyed power applied with pins shorted together. Therefore, when mounting this printed circuit board always check shorting caused stray solder other foreign material before applying power. Load shorting This damaged destroyed operated extended periods with load shorted. allow load shorted. slightest fluctuations operating conditions cause ratings exceeded this operated vicinity maximum ratings. Since this lead destruction device, applications must designed with adequate margins with respect power-supply voltage other parameters that maximum ratings never exceeded.
6075-7/17
LA8520M Functions
RE-NF voltage 2.25 Notes amplifier noise filter Equivalent circuit Unit (resistance:
RE-OUT
2.25
amplifier output
OGM-OUT
2.25
amplifier output
OGM-NF
2.25
amplifier noise filter
OP-NF
2.25
Operational amplifier noise filter
OP-OUT
2.25
Operational amplifier output
TR-OUT
2.25
amplifier output
TR-NIN
2.25
amplifier minus input
TR-PIN
2.25
amplifier plus input
MIC-PIN
2.25
Microphone amplifier plus input
MIC-NIN
2.25
Microphone amplifier minus input
MIC-OUT
2.25
Microphone amplifier output
RF1-IN
2.25
input
RF2-IN
2.25
input
AUX-IN
2.25
Auxiliary input
DR-IN
2.25
Door phone input
Continued next page.
6075-8/17
LA8520M
Continued from preceding page.
voltage Notes Equivalent circuit Unit (resistance:
VREF
2.25
Internal circuit reference voltage (about 2.25 Circuits other than amplifier operate using this potential reference.
Chip enable input
Data input
Clock input
P-OUT1
0.44
power amplifier output
P-IN 0.44 power amplifier minus input
P-OUT2
0.44
power amplifier output
P-VREF 0.44 power amplifier reference voltage
Continued next page.
6075-9/17
LA8520M
Continued from preceding page.
voltage Notes Equivalent circuit Unit (resistance:
VR-OUT
2.25
Electronic volume control output
AUX-OUT
2.25
Auxiliary output
DR-OUT
2.25
Door phone output
RF2-OUT
2.25
output
RF1-OUT
2.25
output
LN-OUT
2.25
Line output
HD-NF
2.25
Handset amplifier noise filter
HD-OUT
2.25
Handset amplifier output
Ground
P-VCC
applied
Power amplifier power supply
P-GND
Power amplifier ground
applied
Power supply
6075-10/17
Amplifier Output Distortion Thermal Characteristics Crosspoint Switch Input Dynamic Range Thermal Characteristics
Resistance:
Output total harmonic distortion
Total harmonic distortion Input level (dBV) Total harmonic distortion Input level (dBV)
Output power (mW)
LA8520M
Handset Amplifier Output Distortion Thermal Characteristics
Electronic Volume Control Output Distortion Thermal Characteristics
Total harmonic distortion
6075-11/17
Input level (dBV)
Quiescent Current Thermal Characteristics
Electronic Volume Control Step Width Thermal Characteristics
Step width (dB)
Quiescent current (mA) Temperature (°C)
Temperature (°C)
LA8520M
Amplifier Output Distortion Characteristics
Attenuation Thermal Characteristics
Attenuation (dB)
Total harmonic distortion
6075-12/17
Output power (mW)
Temperature (°C)
Door Phone Amplifier Output Distortion Characteristics Amplifier Output Distortion Characteristics
Total harmonic distortion
Total harmonic distortion Output level (dBV) Output power (mW) Total harmonic distortion Output level rms) Output level rms)
LA8520M
Amplifier Output Distortion Characteristics
Handset Amplifier Output Distortion Characteristics
Total harmonic distortion
6075-13/17
Microphone Amplifiers Output Distortion Characteristics Operational Amplifier Output Distortion Characteristics
Total harmonic distortion Total harmonic distortion Output level rms)
Output level rms)
LA8520M
Crosspoint Switch Input Dynamic Range Characteristics
Amplifier Output Distortion Characteristics
Total harmonic distortion
Output total harmonic distortion
6075-14/17
Input level (dBV)
Output level rms)
Input Crosstalk Characteristics Electronic Volume Control Step Width Dependence
Step width (dB)
Crosstalk level (dBV) Supply voltage Attenuation (dB) Supply voltage
Input level (dBV)
LA8520M
Crosstalk Dependence
Attenuator Attenuation Dependence
Crosstalk level (dBV)
6075-15/17
Supply voltage
Amplifier Output Noise Dependence Amplifier Ripple Rejection Ratio Dependence
Ripple rejection ratio (dB)
Output noise (dBV) Supply voltage
Supply voltage
LA8520M
Quiescent Current Dependence
Output Noise Dependence
Output noise (dBV)
Quiescent current (mA)
6075-16/17
Supply voltage
Supply voltage
LA8520M
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products (including technical data, services) described contained herein controlled under applicable local export control laws regulations, such products must exported without obtaining export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties.
This catalog provides information March, 1999. Specifications information herein subject change without notice. 6075-17/17

Monolithic Linear LA8520M Audio Signal-Processing with Switc

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