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Ordering number: EN5421
Monolithic Linear IC
LA8518NM Signal Processor for Cordless Telephone Base Sets
Functions
Speech network block c 2-wire/4-wire conversion c Line driver c Transmitting amplifier c Receiving amplifier (with ATT) c Power supply switching circuit c Impedance matching c DTMF interface c Key tone interface c BN circuit network switching circuit (BN = Balancing Network) Signal processor block c Record preamplifier (with ALC) c Record amplifier c Power amplifier (VCC = 5 V, RL = 8 , PO = 200 mW) c Playback equalizer amplifier c Voice detector (VOX) c Electronic volume control (4 dB, 7 steps) Crosspoint switch block c Crosspoint switches (mixing available) c CPU interface
Package Dimensions
unit : mm
3159-QFP64E
[LA8515NM]
SANYO : QIP64E
Allowable power dissipation, Pd max - W
Features
c Because it is possible to switch the Balancing Network between two systems, one for the near end and one for the far end, in accordance with the line current, this IC provides excellent sidetone characteristics over a wide range of line currents. c Receiver amplifier supports ceramic receivers and dynamic receivers. c Power amplifier on chip (VCC = 5 V, RL = 8 , PO = 200 mW). c Crosspoint switches allow full mixing, permitting the implementation of a variety of functions, such as three- or four-way calls. c Digital volume control on chip (power system output).
120 x 120 x 1.5 mm3 glass epoxy board Independent IC
Ambient temperature, Ta - C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
41596HA (II) No.5421-1/31
LA8518NM
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Line current Allowable power dissipation Operating temperature Storage temperature Symbol VL max VCC max IL max Pd max Topr Tstg Conditions Speech network block Other than speech network block Ratings 15 10 130 1.05 -20 to +70 -40 to +150 Unit V V mA W C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Other than speech network block Ratings 5 4.5 to 7.5 Unit V V
Operating Characteristics at Ta = 25C, f = 1 kHz
Parameter Symbol Conditions [Speech Network Block (External power supply operating characteristics)] Line voltage VL IL = 20 mA IL = 50 mA IL = 120 mA Internal supply voltage VSP IL = 20 mA IL = 50 mA IL = 120 mA Transmitting gain GT IL = 20 mA, VIN = -55 dBV IL = 120 mA, VIN = -55 dBV Receiving gain GR IL = 20 mA, VIN = -20 dBV IL = 120 mA, VIN = -20 dBV DTMF gain GMF IL = 20 mA, VIN = -30 dBV IL = 120 mA, VIN = -30 dBV KT gain GKT IL = 20 mA, VIN = -40 dBV IL = 120 mA, VIN = -40 dBV Transmitting dynamic range DRT IL = 20 mA, THD = 4% IL = 120 mA, THD = 4% Receiving dynamic range IL = 20 mA, THD = 10% DRDR (Single RL = 150 ) IL = 120 mA, THD = 10% Receiving dynamic range IL = 20 mA, THD = 10% DRSR (BTL RL = 3 k) IL = 120 mA, THD = 10% MUTE high-level input voltage VIH IL = 20 mA to 120 mA MUTE low-level input voltage VIL IL = 20 mA to 120 mA Transmitting PADC attenuation GT IL = 30 mA, ground at 24 k Receiving PADC attenuation GR IL = 30 mA, ground at 24 k Internal reference voltage VREF IL = 20 mA IL = 50 mA IL = 120 mA [Speech Network Block (Operating characteristics when power is off)] Line voltage VL IL = 20 mA IL = 50 mA IL = 120 mA Internal supply voltage VSP IL = 20 mA IL = 50 mA IL = 120 mA min 3.3 4.9 7.8 4.5 4.5 4.5 43 39 -3.0 -9.5 28 24 9 9 2.5 4.5 0.5 0.5 5 5 0.6VSP 0 typ 3.9 5.7 9.3 4.8 4.8 4.8 45 41 -1.0 -7.5 30 26 11 11 max 4.3 6.5 10.8 5.0 5.0 5.0 47 43 +1.0 -5.5 32 28 13 13 Unit V V V V V V dB dB dB dB dB dB dB dB Vp-p Vp-p Vp-p Vp-p Vp-p Vp-p V V dB dB V V V V V V V V V
0.4 3.6 6.5 2.3 2.3 2.3
3.3 4.8 7.2 1.7 2.5 4.55
3.8 5.4 8.7 1.9 2.8 4.85
4.3 6.2 10.2 2.1 3.1 5.15
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Continued from preceding page.
Parameter Transmitting gain Receiving gain DTMF gain KT gain Transmitting dynamic range Receiving dynamic range (Single RL = 150 ) Receiving dynamic range (BTL RL = 3 k) MUTE high-level input voltage MUTE low-level input voltage Transmitting PADC attenuation Receiving PADC attenuation Internal reference voltage Symbol GT GR GMF GKT DRT DRDR DRSR VIH VIL GT GR VREF Conditions 20 mA, VIN = -55 dBV 120 mA, VIN = -55 dBV 20 mA, VIN = -20 dBV 120 mA, VIN = -20 dBV 20 mA, VIN = -30 dBV 120 mA, VIN = -30 dBV 20 mA, VIN = -40 dBV 120 mA, VIN = -40 dBV 20 mA, THD = 4 % 120 mA, THD = 4 % 20 mA, THD = 10% 120 mA, THD = 10% 20 mA, THD = 10% 120 mA, THD = 10% 20 mA to 120 mA 20 mA to 120 mA 30 mA, ground at 24 k 30 mA, ground at 24 k 20 mA 50 mA 120 mA min 42 39 -4.5 -9 27 24 6.7 9 2.5 4.5 0.3 0.5 2 6 0.6VSP 0 typ 44 41 -2.5 -7 29 26 8.7 11 max 46 43 -0.5 -5 31 28 10.7 13 Unit dB dB dB dB dB dB dB dB Vp-p Vp-p Vp-p Vp-p Vp-p Vp-p V V dB dB V V V
IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL IL
= = = = = = = = = = = = = = = = = = = = =
0.4 3.7 6.3 0.65 1.0 1.7
Operating Characteristics at Ta = 25C, f = 1 kHz
Parameter Symbol [Audio Signal Processing Block] PRE AMP Input from crosspoint switch Voltage gain VGC Total harmonic distortion THD ALC saturation output level VOS ALC range ALCW Equivalent input noise voltage VNI PB AMP Voltage gain VGE Total harmonic distortion THD Equivalent input noise voltage VNI OGM AMP Voltage gain VGG Total harmonic distortion THD REC AMP Voltage gain VGR Output bias voltage VB (Voltage at pin 21) Total harmonic distortion THD MIC AMP Voltage gain VGM Total harmonic distortion THD Equivalent input noise voltage VNI POWER AMP RL = 8 Voltage gain VGP Output voltage PO Total harmonic distortion THD Input resistance RIN Ripple rejection ratio SVRR Output noise voltage VNO Conditions min typ max Unit
-45 dBV input -20 dBV input -20 dBV input From when ALC is on until THD is 1% Input AC-shorted, 20 to 20 kHz -60 dBV input -60 dBV input Pin AC-shorted, 20 to 20 kHz -20 dBV input -20 dBV input Pin 20 ZAC = 8.1 k, between pins 25 and 21 Pin 20 ZDC = 15 k, pin 21 load = 8.2 k
6 90 15
8 0.4 110 5.0
10 1.0 130 10 50.5 1.5 10 11 1.0 8 1.2 1.5 31 1.0 5 32 1.5
dB % mVrms dB Vrms dB % Vrms dB % dB V % dB % Vrms dB mW % k dB Vrms
46.5
48.5 0.5 5.0 9 0.1 6 1.0 0.8
7
4 0.8
-40 dBV input -40 dBV input Pin 33 AC-shorted, 20 to 20 kHz -30 dBV input THD = 10% -30 dBV input Rg = 0, fr = 100 Hz, Vr = -20 dBV Pin 42 AC-shorted, 20 to 20 kHz
27
29 0.1 2.0 30 250 0.6 15 0.04
28 200
40 0.1
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Parameter VOX Sensitivity 1 Sensitivity 2 Electronic volume control Step width VREF Output voltage Control Clock frequency High-level input signal Low-level input signal Power supply switch Pin 31 voltage 1 Pin 31 voltage 2 Quiescent current Symbol VOXL VOXH EVRW VREF FCK VH VL VCH1 VCH2 ICCO The voltage applied to pin 31 is effective The voltage supplied from pin 64 is effective Power amplifier on 2.1 -24 dBV input -27 dBV input Conditions min typ max 0.3 4.8 3.8 2.3 2.5 500 3 1.5 3.5 19 26 1.2 35 Unit V V dB V kHz V V V V mA
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Block Diagram
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Test Circuit Diagram
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Sample Application Circuit
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-- Serial control data format --
c Serial data content
First bit A0 to A6 D Specify the address of a crosspoint switch and a control switch. Turns the crosspoint switch on and off and controls the control switch. (When D = 1, the switch is on; when D = 0, the switch is off.)
c Example: Turning address 11 (AUX input, RF1 output) on
The address table is shown on the following page: Note 1: Because there is a power-on reset function, all crosspoint switches and control switches are reset when the external power supply (VCC at pin 31) is turned on. Note 2: SW2 and SW3 in the block diagram are controlled by the MUTE pin (pin 51); the signals that are enabled are shown below.
MUTE pin H L SW2 Transmitting (Pin 58) TAIN (Pin 59) DTMF (Pin 60) SW3 Receiving (Pin 7) KT (Pin 55)
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-- Address chart --
Input LINE LINE HAND RF1 Output RF2 DOOR AUX PWR PRE -- 07 0D 14 -- 21 29 2F HAND 01 -- 0E 15 1B 22 -- 30 RF1 02 08 -- 16 1C 23 2A 31 RF2 03 09 0F -- 1D 24 2B 32 DOOR -- 0A 10 17 -- 25 2C 33 AUX 04 0B 11 18 1E 26 2D 34 MIC 05 -- 12 19 1F 27 -- 35 OGM 06 0C 13 1A 20 28 2E 36 PRE -- -- -- -- -- -- 37 --
Other Control Switches 00 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 All crosspoint switches and control switches off *2 Mixing switch for PB amplifier-OGM amplifier on Transmitting/receiving CTL (SW1 and SW2 in the block diagram) *1 Receiver amplifier ATT Set to 0 dB Line amplifier ATT Set to -6 dB ALC on PB amplifier on REC amplifier on Power amplifier on Electronic volume control 0 dB Electronic volume control -4dB Electronic volume control -8dB Electronic volume control -12dB *2 Electronic volume control -16dB Electronic volume control -20dB Electronic volume control -24dB Electronic volume control -28dB
*1: When address 39 is on, SW1 enables the transmitting amplifier output (pin 58) signal, and SW4 enables the receiving amplifier output (pin 7) or KT (pin 55) signal. If voltage is not supplied to pin 31 (VCC) (power is off), the status of SW1 and SW4 is the same as address 39 is in on state. *2: When setting address 00 and 40 to 47, ``D'' data may be either ``0'' or ``1''. Note 1: The receiver amplifier ATT is set to -6 dB when power is first applied, when a reset is performed, and when all of the switches are off. Note 2: The line amplifier ATT is set to 0 dB when power is first applied, when a reset is performed, and when all of the switches are off. Note 3: The electronic volume control is set to 0 dB when power is first applied, when a reset is performed, and when all of the switches are off. Note 4: The addresses are given in hexadecimal notation.
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Input Port Timing
c c c c c c c c c
fMAX fWL fWH tCS tCH tDS tDH tWC tWR
(Maximum clock frequency) (Clock pulse width ``L'') (Clock pulse width ``H'') (Chip enable setup time) (Chip enable hold time) (Data setup time) (Data hold time) (Chip enable pulse width) (Reset pulse width)
500 kHz 1s or longer 1s or longer 1s or longer 1s or longer 1s or longer 1s or longer 1s or longer 1s or longer
Note: The control data must input 400 ms or longer after the supply voltage is applied to VCC (pin 31).
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Pin Functions
Pin No. 64 1 2 Pin Name VL TOI TOO Internal Equivalent Circuit Pin Function c Line current input pin, line voltage pin. c Transmitting output current input pin. c Transmitting output current output pin.
3 4
BN1 BN2
c BN switch pin 1. c BN switch pin 2. Connect when there are two balancing network circuits. Open when not used.
5 6 7
GND (SP) RI IN RI OUT
c Speech network system GND pin. c Receiving input amplifier - input pin. c Receiving input amplifier output pin.
8 9
HAND NF HAND MONI
c Handset amplifier - input pin. c Handset amplifier output pin.
10 11 13
RF1 IN RF2 IN AUX IN
c Compander 1 input pin. c Compander 2 input pin. c Unused input pin.
12
DOOR IN
c Amplifier input pin for interphone. Because there is a feedback resistor (30 k) on chip, the input is passed through an external resistor.
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Continued from preceding page.
Pin No. 14 Pin Name LINE OUT Internal Equivalent Circuit Pin Function c Line output pin.
15 16 17 18
RF1 OUT RE2 OUT DOOR OUT AUX OUT
c c c c
Compander 1 input pin. Compander 2 input pin. Interphone output pin. Auxiliary output pin.
19 20 21
GND BIAS/GAIN HEAD
c Signal processing system GND. c Bias pin. The REC amplifier gain and the REC bias gain can be controlled by an external resistor. c REC amplifier output pin and PB amplifier + input pin.
22 24
PB NF PRE NF
c PB amplifier - input pin. c PRE amplifier - input pin.
23 25 35
PB OUT PRE OUT MIC OUT
c PB amplifier output pin. c PRE amplifier output pin. c MIC amplifier output pin
26
ALC IN
c ALC input pin. Input from the PRE output (pin 25) via a coupling capacitor. In addition, the ALC level can be adjusted by connecting resistors in series.
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Continued from preceding page.
Pin No. 27 Pin Name ALC CT Internal Equivalent Circuit Pin Function c ALC time constant adjustment pin. Adjusts the ALC attack time and recovery time.
28 29
OGM IN OGM OUT
c OGM amplifier - input pin. c OGM amplifier output pin.
30
VREF
c Internal reference voltage output pin (approx. 2.3 V).
31
VCC
c External power supply input pin. Supplies power to the signal processing system and to VSP (pin 62). c VOX sensitivity adjustment pin. The VOX sensitivity can be adjusted by connecting this pin to pin 30 (VREF) through a resistor. c VOX + input pin.
32 36
VOX TH VOX IN
33 34
MIC IN MIC NF
c MIC amplifier + input pin. c MIC amplifier - input pin.
37
VOX.C
c VOX detection pin. Can also be used as a waveform shaper by forcing this pin high.
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LA8518NM
Continued from preceding page.
Pin No. 38 40 39 41 42 43 Pin Name P. GND P. VCC PWR OUT PWR NF PWR IN D.C Internal Equivalent Circuit Pin Function c Power system GND pin. c Power system power supply pin. c Power amplifier output pin. Goes to high impedance when MUTE is on. c Power amplifier - input pin. c Power amplifier + input pin. c Power amplifier reference voltage pin (approximately 4/9 x P. VCC).
44
PWR MONI
c Output pin for power amplifier.
45
VOX OUT
c VOX output pin. Open collector output.
46 47 48 49
CE DATA CLOCK RESET to
c c c c
Chip enable input pin. Data input pin. Clock input pin. Reset pin. Power-on reset.
50
PADC
c Pad control pin. By connecting this pin to GND or to S. VCC (pin 63) through a resistor, it is possible to use the line current for gain control and to control the operating current for BN switching.
Continued on next page.
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Continued from preceding page.
Pin No. 51 Pin Name MUTE Internal Equivalent Circuit Pin Function c Mute pin. Switches the transmitting signal and the DTMF signal in the transmitting system, and the receiving signal and the KT signal in the receiving system (SW2 and SW3 in the block diagram). When low, the DTMF and KT signals are valid.
52 53 54
RV NF RV OUT1 RV OUT2
c Receiver amplifier - input pin. c Receiver amplifier 1 output pin. c Receiver amplifier 2 output pin.
55
KT IN
c Key tone input pin.
56 57 58
TI IN TI NF TI OUT
c Transmission input amplifier + input. Because bias voltage is not applied internally, connect signal from REF (pin 61) via a resistor. c Transmission input amplifier - input pin. c Transmission input amplifier output pin.
59
TA IN
c Input pin for LINE output pin.
60
DTMF IN
c Input for DTMF input pin.
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Continued from preceding page.
Pin No. 61 Pin Name REF Internal Equivalent Circuit Pin Function c Speech network system internal reference voltage output. When the VCC (pin 31) voltage is 3.5 V or more, VREF (pin 30) is output. When the VCC voltage is 1.2 V or less, voltage of approximately (2/5) x VSP is output.
(Pin 30)
Power supply ON
62
VSP
c Speech network system internal power supply. When the VCC (pin 31) voltage is 3.5 V or more, (VCC applied voltage or thereabout - 0.3 V) is output. When the VCC voltage is 1.2 V or less, (S. VCC (pin 63) or thereabout - 0.3 V) is output. c Speech network system power supply. When the VCC (pin 31) voltage is 1.2 V or less, voltage is supplied to VSP (pin 62) from the line voltage.
63
S. VCC
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Usage Explanations
c Speech network c External Transistors
Line
LA8518NM
Fig. 1 Because the IC has a built-in power amplifier, for reasons concerning allowable power dissipation, connect a transistor for heat dissipation purposes as shown in Fig. 1 so that the line current is consumed externally from the IC. In addition, when establishing the allowable power for R1 and R2, take into consideration the maximum line current that can be expected. * When oscillation is generated due to the load state between VL-GND, insert C1 (about 0.1F). c DC resistance conversion method By varying R2 in Fig. 1, it is possible to change the DC resistance. (Refer to the graphs below.) * Note that varying R2 will also change the transmitting system gain and the balancing network conditions. c AC impedance setting method The AC impedance is basically determined by R3 (620 ) and C2 (220 F) in Fig. 1. Because AC loads other than the speech network will be placed on the line, adjust the AC impedance in conjunction with the speech network impedance. * Note that varying R3 changes the DC resistance. DC characteristics (Power on) DC characteristics (Power off)
Line voltage, VL - V
Line voltage, VL - V
Line current, IL - mA
Line current, IL - mA
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c Balancing Network It is possible to switch the Balancing Network between two systems, one for the near end and one for the far end, in accordance with the line current. (Refer to Fig. 1 for the connection method.) In addition, the switching point can be varied by connecting the PADC pin (pin 50) to GND or to S. VCC (pin 63) via a resistor. (When using only one Balancing Network, refer to Fig. 2.)
Line
LA8518NM
Fig. 2 Note) The constant of Balancing Network is a reference value. c The DC characteristics when the power is off
Load
LA8518NM
By connecting a load to VSP (pin 62), it is possible to change the DC characteristics without changing the DC characteristics only when the power is off. (Refer to the diagram below.) DC characteristics (Power on) DC characteristics (Power off)
Line voltage, VL - V
No load
Line current, IL - mA
Line voltage, VL - V
No change
Line current, IL - mA
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c Receiver Amplifier Application Circuit 1 When using the dynamic receiver
2
When using the ceramic receiver
c The Receiver Amplifier Attenuator
Normally, the attenuator is set to -6 dB. It is set to 0 dB when serial data 3A is on.
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c Gain Distribution
Line drive amp
Transmitting
Transmitting amp
*1 IL = 20 mA *2 IL = 120 mA Note 1) Terminal of line 600
Balancing Network
Receiving input Receiving amp
Receiving output amp
Attenuation
*1 IL = 20 mA *2 IL = 120 mA *3 When serial data 3A is turned on. Note 2) The gain values are approximate values. Note 3) The values shown in parentheses can be varied externally.
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Speech Network Block Switch Operation
Power supply
Line amp
SW2 and SW3 are controlled by pin 51 (MUTE), while SW1 and SW4 are controlled by the serial data (address 39). (SW2 and SW3, and SW1 and SW4 are coupled to each other.) SW1, SW4 operation
Condition Power on (Initial state) Address 39 on Power off SW1 1 2 2 SW4 1 2 2
* When the power is off, SW1 and SW2 are fixed at ``2'' and cannot be switched.
SW2, SW3 operation
Pin 51 (MUTE) High Low SW2 1 2 SW3 1 2
* SW2 and SW3 operate as shown in the table at left, regardless of whether the power is on or off.
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c LINE amplifier attenuator Normally, the attenuator is set to 0 dB. It is set to -6 dB when serial data 3 dB is on.
Crosspoint switch
c REC amplifier V/I conversion
PB input
VIN = 0.3 VP-P PRE Amp output level Internal reference voltage 2.3 V
In order to derive the recording current for the DC bias, this circuit performs V/I conversion. The conversion gain and the bias current can be controlled by the external resistor connected to pin 20. Current equal to the current output from pin 20 is output from pin 22. DC bias current = 2.3 V/(100 + 15 k) 6 150 A Signal current = 1.0 Vp-p/(100 + 15 k//22 k) 6 110 Ap-p c VOX 1 The VOX circuit determines whether or not conversation is taking place. If the VOX input (pin 36) signal is -24dB or higher, the VOX output (pin 45) goes low. The output level is adjusted by inserting a resistor between VOX TH (pin 32) and VREF (pin 30). 2 Because the circuit can be used as a waveform shaper by connecting VOX C (pin 37) to VCC (setting pin 37 high), a 400 Hz beep tone can be detected. (Open collector output)
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c Power amplifier application
C1 : 0.1 F C2 : 0.1 F C3 : 220 F C4 : 220 F C5 : 100 to 470 F SP : 8 to 16 c Voltage gain: 20 to 30 dB c No capacitor for frequency characteristics adjustment connected to the feedback resistor.
* The phase compensation capacitor C2 should be located near the IC. * When muting (address 3F ``off''), the impedance of the power amplifier output (pin 39) is high.
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c Serial control mode example Below are the basic modes.
Mode ICM REC Serial Data A6 0 0 0 0 0 (Base set) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (Base set) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 A5 1 1 1 1 1 0 0 1 1 1 1 0 0 1 1 1 1 1 1 1 0 0 1 1 0 1 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 A4 0 1 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 1 1 1 0 0 0 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 1 A3 1 0 1 1 1 0 0 1 0 1 1 0 1 1 0 1 1 0 1 1 0 0 1 0 0 1 1 1 1 1 0 1 1 0 0 1 1 1 1 0 1 1 1 1 A2 1 1 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 1 1 1 0 1 1 0 1 1 0 1 1 1 0 1 1 0 1 1 0 1 1 1 1 0 1 1 A1 1 1 0 1 1 0 1 1 0 0 1 1 0 1 0 0 1 0 0 1 0 1 1 0 1 1 1 0 1 1 1 0 1 0 1 1 1 0 1 1 1 0 0 1 A0 1 1 0 0 1 1 1 1 0 0 0 0 1 1 1 0 0 1 0 0 1 1 1 0 0 0 1 0 0 1 0 1 1 1 0 0 1 0 0 0 0 0 1 1 D0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Address 2F 37 3C 3E 3F 01 07 2F 30 3C 3E 02 0D 2F 31 3C 3E 35 3C 3E 01 07 2F 30 06 2E 3B 3C 3E 3F 02 0D 2F 31 06 2E 3B 3C 3E 06 2E 38 3D 3F Remarks Input LINE, output PRE Input PRE, output PWR ALC ON REC ON PWR ON Input HAND, output LINE Input LINE, output HAND Input LINE, output PRE Input HAND, output PRE ALC ON REC ON Input RF1, output LINE Input LINE, output RF1 Input LINE, output PRE Input RF1, output PRE ALC ON REC ON Input MIC, output PRE ALC ON REC ON Input HAND, output LINE Input LINE, output HAND Input LINE, output PRE Input HAND, output PRE Input OGM, output LINE Input OGM, output PWR LINE -6dB ALC ON REC ON PWR ON Input RF1, output LINE Input LINE, output RF1 Input LINE, output PRE Input RF1, output PRE Input OGM, output LINE Input OGM, output PWR LINE -6dB ALC ON REC ON Input OGM, output LINE Input OGM, output PWR Mix OGM and PB PB ON PWR ON
2 WAY REC
(Handset)
DECT REC
2 WAY BEEP
(Handset)
ICM OUT
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Mode ICM PLAY (Base set) Serial Data A6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (Base set) (Handset) ROOM MONI ROOM OUT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 A5 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 0 0 1 1 1 0 1 1 1 0 1 1 1 0 0 0 0 0 0 0 0 A4 0 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 0 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 A3 1 1 1 1 0 1 1 0 1 0 1 1 0 1 1 0 1 1 1 1 0 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 0 0 1 1 1 A2 1 0 1 1 0 0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 0 1 0 1 1 A1 1 0 0 1 1 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 1 0 0 1 A0 0 0 1 1 1 0 1 1 0 1 0 1 1 0 1 0 0 1 0 1 1 1 1 1 1 0 1 1 1 0 1 0 0 0 0 1 0 1 0 1 0 D0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Address 2E 38 3D 3F 13 38 3D 35 3C 31 3C 2F 37 3C 3F 06 2E 3F 2E 3F 13 05 2F 37 3F 06 2F 37 3F 06 2F 3C 3E 08 0E 01 02 07 08 0D 0E Remarks Input OGM, output PWR Mix OGM and PB PB ON PWR ON Input OGM, output RF1 Mix OGM and PB PB ON Input MIC, output PRE ALC ON Input RF1, output PRE ALC ON Input LINE, output PRE Input PRE, output PWR ALC ON PWR ON Input OGM, output LINE Input OGM, output PWR PWR ON Input OGM, output PWR PWR ON Input OGM, output RF1 Input MIC, output LINE Input LINE, output PRE Input PRE, output PWR PWR ON Input OGM, output LINE Input LINE, output PRE Input PRE, output PWR PWR ON Input OGM, output LINE Input LINE, output PRE ALC ON REC ON Input RF1, output HAND Input HAND, output RF1 Input Input Input Input Input Input HAND, output LINE RF1, output LINE LINE, output HAND RF1, output HAND LINE, output RF1 HAND, output RF1
(Handset)
OGM REC
(Base set) (Handset)
OGM CHANGE
OGM OUT
OGM PLAY
VOICE SELE
Interactive REC
Extension call Three-way call
``1''= HIGH ``0''= LOW
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LA8518NM
Usage Examples for Each Mode
1) ICM REC (In Coming Message Rec.) c Recording incoming messages. c Recording memos from an outside location (remote control from an outside location). 2) 2WAY REC c Recording of both sides of conversations. c Recording incoming messages. 3) DECT REC c Recording memos using the microphone (recording messages to family or making simple recordings). 4) 2WAY BEEP c An alarm sound is output from the speaker and recorded as an ICM, and is simultaneously output on the line and relayed to the other party. c Can be indicated to the other party that recording is in progress. c Line output is reduced by 6 dB in comparison with other modes. 5) ICM OUT c Playing back incoming messages. c Listening to incoming messages from an outside phone. c Transferring incoming messages. c Playing back the memo recording. 6) ICM PLAY c Playing back incoming messages. c Playing back the memo recording. 7) OGM REC (Outgoing Message rec.) c Recording the answering message in the IC. 8) OGM CHANGE c Changing the answering message by remote control from an outside phone. 9) OGM OUT c Playing back the answering message. c Transmitting the answering message (by remote control, etc.). 10) OGM PLAY c Playing back and checking the answering message. 11) ROOM MONI c Listening to the microphone input by remote control from an outside telephone. 12) ROOM OUT c Outputting messages, etc., over the speaker by remote control from an outside telephone. 13) VOICE SELE c Outputting the other party's voice over the speaker when transmitting the response message. 14) Interactive recording c Recording an incoming message while transmitting the answering message.
No.5421-26/31
LA8518NM
IC Usage Notes
1) Printed circuit board When creating a printed circuit board, make the GND lines for pins 19 and 38 thick and short. Common impedance could result in a worsening of distortion. 2) When used nearly at the maximum ratings, even a slight fluctuation in conditions could result in the maximum ratings being exceeded, which may result in damage to the IC. Therefore, allow for an adequate safety margin in regards to the power supply voltage, etc., and use the IC only within ranges that will not exceed the maximum ratings under any circumstances. 3) Short circuits between pins Turning on the power while there is a short circuit between pins is a cause of IC damage and deterioration. Therefore, when mounting the IC on a board, make sure that the pins are not short-circuited by solder, etc., before applying power. 4) Load short circuit Leaving a load in a short-circuited state for an extended period of time is a cause of IC damage and deterioration. Therefore, do not short-circuit the load at any time. 5) Power amplifier A phase compensation capacitor must be connected between pin 39 (PWR OUT) and pin 38 (P. GND) and positioned near the IC.
DC characteristics (power on)
DC characteristics (power off) Pin 64
Pin 64 Voltage - V
Voltage - V
Pin 62
Pin 62
Pin 61
Pin 61
Line current, IL - mA Transmitting characteristics (power on) Transmitting gain, GT - dB
Line current, IL - mA Transmitting characteristics (power off)
Transmitting gain, GT - dB
Pin 56 input
Pin 56 input
Open
Open
Line current, IL - mA
Line current, IL - mA No.5421-27/31
LA8518NM
Transmitting dynamic range, DRT - dBV Transmitting dynamic range, DRT - dBV Transmitting dynamic range (power on)
Transmitting D range Pin 56 input
Transmitting dynamic range (power off)
Transmitting D range
Pin 56 input
Line current, IL - mA DTMF characteristics (power on)
Line current, IL - mA DTMF characteristics (power off)
Pin 60 input
Pin 60 input
DTMF gain, GMF - dB
Open
DTMF gain, GMF - dB
Open
Line current, IL - mA Receiving characteristics (power on)
Line current, IL - mA Receiving characteristics (power off)
Receiving gain, GR - dB
Open
Receiving gain, GR - dB
Pin 64 input
Pin 64 input
Open
Receiving dynamic range, DRDR - dBV
Pin 64 input
Receiving dynamic range, DRDR - dBV
Line current, IL - mA Receiving dynamic range (power on)
Line current, IL - mA Receiving dynamic range (power off)
Pin 64 input
Receiving D range
Receiving D range
Line current, IL - mA
Line current, IL - mA No.5421-28/31
LA8518NM
KT characteristics (power on) KT characteristics (power off)
Pin 55 input
KT gain
KT gain
KT gain, GKT - dB
Pin 55 input
KT gain, GKT - dB
Line current, IL - mA Quiescent current Quiescent current, ICCO - mA
Line current, IL - mA VREF (Pin 30) Reference voltage, VREF - V
Quiescent current
Supply voltage, VCC - V Equivalent input noise
Each input shorting
Supply voltage, VCC - V PRE Amp ALC characteristics
Output level
Equivalent input noise, VNI - Vrms
Pin 13 input
Address 34, 3C on Supply voltage, VCC - V PB Amplifier input/output characteristics Total harmonic distortion, THD - % Input level - dBV PB Amplifier voltage gain
Gain
Output level, VO - mVrms
Output level
Voltage gain, VG - dB
Pin 21 input Address 3D on
Pin 21 input Address 3C on
Input level - dBV
Frequency, f - Hz No.5421-29/31
Total harmonic distortion, THD - %
Output level, VO - mVrms
LA8518NM
OGM Amplifier input/output characteristics Total harmonic distortion, THD - % Output level, VO - mVrms MIC Amp input/output characteristics Total harmonic distortion, THD - %
Input shorted
Output level, VO - mVrms
Pin 28 input Output level
Pin 33 input
Output level
Input level - dBV Crosspoint switch output noise
Each input shorting
Input level - dBV Crosspoint switch input characteristics Total harmonic distortion, THD - % No.5421-30/31
Output noise, VNO - Vrms
Output level, VO - mVrms
Pin 13 input, Pin 18 output Output level
Pin 53
Pin 44 Pin 15
Supply voltage, VCC - V Crosspoint switch crosstalk
PB Amp (gain 50 dB)
Input level - dBV PWR Amplifier output noise Output noise, VNO - Vrms
Crosstalk, CT - Vrms
Pin 13 input, Pin 18 output Address 26 on
PRE Amp (gain 30 dB)
Receiving amplifier (gain 10 dB)
Noise
Pins 14,15,16,17,18 output
Input level - dBV PWR Amp PO - THD characteristics Total harmonic distortion, THD - %
Supply voltage, VCC - V PWR Amplifier PO - VCC characteristics
Output power, PO - mW
Output power
Output power, PO - mW
Supply voltage, VCC - V
LA8518NM
PWR Amp power dissipation characteristics VOX sensitivity
Pin 36 input
Power dissipation, Pd - mW
Output power - mW VOX sensitivity resistance - ON level
Input level - dBV
Supply voltage, VCC - V Electronic volume control step width
Input -20 dBV
ON level
Voltage gain, VG - dB
ON level - dBV
Series 1
Resistance value - VOX waveform shaping duty
Level
Duty - %
Duty
Connect VOX, C pin to VCC
Input level - dBV
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of April, 1996. Specifications and information herein are subject to change without notice.
No.5421-31/31

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