Ordering number : ENA1180 LA74302FN Monolithic Linear IC Audio Interface for DSC Overview The LA74302FN is a SPEAKER AMP and MIC AMP built-in audio interface for DSC. Functions • Three-wire type SERIAL communications, MIC AMP • MIC power supply provided • ALC (ALC LEVEL: level changeover in three stages possible) • REC/PB LPF (fc=4kHz: 3rd order) • LINE output (with SERIAL MUTE) • SPEAKER AMP (compatible with BEEP input MIX) • With serial communications control electronic VOLUME Specifications Maximum Ratings at Ta=25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max Allowable power dissipation Pd max Operating temperature Topr -15 to +85 °C Storage temperature Tstg -55 to +150 °C Ta≤85°C * 5.0 V 500 mW * Substrate mounting condition (30mm × 50mm × 0.8mm: glass epoxy) 2S2P Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 52808 TI IM 20060727-S00005 No.A1180-1/12 LA74302FN Operating Conditions at Ta=25°C Parameter Symbol Recommended supply voltage Allowable operating voltage range Conditions Ratings Unit VCCL 3.0 V VCCD 3.0 V VCCSP 3.0 V VCCL 2.7 to 3.6 V VCCD 2.7 to 3.6 V VCCSP 2.7 to 3.6 V Take care not to exceed Pd max. Electrical Characteristics at Ta=25°C, VCCL, D, SP=3.0V, f=1kHz Parameter Symbol Conditions Ratings min typ Unit max Circuit current Quiescent circuit current 1 ICCA1 Quiescent circuit current 2 ICCA2 VCCA=3.0V: FULL operation VCCA=3.0V: REC BLOCK (MIC/ALC/REC AMP) POWER SAVE Quiescent circuit current 3 ICCA3 VCCA=3.0V: LINE AMP POWER SAVE Quiescent circuit current 4 ICCD1 VCCD=3.0V Quiescent circuit current 5 ICCSP1 VCCSP=3.0V: SPK POWER ON Quiescent circuit current 6 ICCSP2 5.2 7.0 8.8 mA 2.4 3.2 4 mA 4.8 6.4 8.0 mA 2.1 2.8 3.5 mA 1.2 2.5 5 mA VCCSP=3.0V: SPK POWER SAVE 0.3 0.6 0.9 mA -15 -14 -13 dBV 0.03 0.1 % -4 -1 dBV 0.3 0.5 % -4 -1 dBV 0.4 1 % -82 -68 dBV -3 -1.5 dBV -31 -25 dB -70 -60 dB -6 -5 dBV 0.1 0.2 % -90 -82 dBV REC output system REC reference output LEVEL VOR ALC IN, VIN=-44dBV REC reference output distortion rate 1 HDR1 ALC IN, VIN=-44dBV, THD: from 2nd to 5th harmonic ALC characteristics 1 ALM1 ALC IN, VIN=-28dBV (reference+16dB), ALC LEVEL: reference +10dB ALC distortion rate 1 ALMD1 ALC IN, VIN=-28dBV (reference +16dB), -7 ALC LEVEL: reference +10dB ALC characteristics 2 ALM2 ALC IN, VIN=-12dBV (reference +32dB), ALC LEVEL: reference +10dB ALC distortion rate 2 ALMD2 ALC IN, VIN=-12dBV (reference +32dB), -7 ALC LEVEL: reference +10dB, THD: from 2nd to 5th harmonic REC output noise voltage VNOR ALC IN no input, JIS-A Filter REC output frequency characteristics 1 FEQR1 ALC IN, VIN=-36dBV, Comparison of f=4kHz/1kHz REC output frequency characteristics 2 FEQR2 -4.5 ALC IN, VIN=-36dBV, Comparison of f=22kHz/1kHz REC output frequency characteristics 3 FEQR3 ALC IN, VIN=-36dBV, Comparison of f=100kHz/1kHz LINE output system LINE reference output LEVEL VOL PB IN, VIN=-14dBV LINE reference output distortion rate HDL PB IN, VIN=-14dBV, -7 THD: from 2nd to 5th harmonic LINE reference output noise voltage VNOL PB IN, no input, JIS-A Filter LINE max output LEVEL VOML PB IN, LEVEL at which THD (from 2nd to 5th harmonic)=1% LINE output frequency characteristics 1 FEQP1 PB IN, VIN=-10dBV, Comparison of f=4kHz/1kHz LINE output frequency characteristics 2 FEQP2 PB IN, VIN=-10dBV, Comparison of f=22kHz/1kHz LINE output frequency characteristics 3 FEQP3 PB IN, VIN=-10dBV, Comparison of f=100kHz/1kHz -1 0 dBV -4.5 -3 -1.5 dB -31 -25 dB -70 -60 dB Continued on next page. No.A1180-2/12 LA74302FN Continued from preceding page. Parameter Symbol Conditions Ratings min typ Unit max SP output system (SP load=as measured at 8Ω end) SP reference output LEVEL1 (Vol.MAX) VOSP1 PB IN, VIN=-14dBV, Vol=MAX (Serial DATA=31) SP reference output distortion rate THDSP PB IN, VIN=-14dBV, Vol=MAX, -8 THD: from 2nd to 5th harmonic SP reference output LEVEL2 (Vol.TYP) VOSP2 PB IN, VIN=-14dBV, Vol=TYP (Serial DATA=12) SP reference output LEVEL3 (Vol.MIN) VOSP3 PB IN, VIN=-14dBV, Vol=MIN (Serial DATA=0), -22 JIS-A Filter -4 0 dBV 0.7 1.5 % -16 -10 dBV -90 -70 dBV -86 -70 dBV SP reference output noise voltage VNOSP PB IN no input, Vol=MAX, JIS-A Filter SP max rated output VOMSP PB IN, Vol=MAX, LEVEL at which THD=10% MIC voltage gain VGMIC MIC IN, VIN=-40dBV 26 27 MIC output distortion rate HDMIC MIC IN, VIN=-40dBV, THD: up to quintic 0.1 0.5 % MIC output noise voltage VNOMIC MIC IN, no input, JIS-A Filter -91 -83 dBV MIC max output LEVEL VOMIC Output LEVEL at which THD=1% MIC VCC output voltage VMIC At 2.2kΩ load 150 250 mW MIC output system 25 dB -3 -1 2.1 2.3 2.5 dBV V 1.25 1.5 MHz Control system Serial CLOCK frequency FCLK Serial input LOW level SERLO Serial input HIGH level SERHI 0 0.7 V 2.3 3.5 V Package Dimensions unit : mm (typ) 3292A TOP VIEW BOTTOM VIEW SIDE VIEW (0.55) (R0.3) 5.0 (0.2) 1.2 3 - Do Not Connect 1.2 (R0.2) 1 2 (0.8) 0.0 NOM 0.85 MAX 0.95 28 2 1 SIDE VIEW 0.2 0.95 0.5 0.5 5.0 0.50 0.5 Do Not Connect (1.0) SANYO : VQFN28J(5.0X5.0) No.A1180-3/12 LA74302FN Description of the Content of Serial Communication DATA No. Parameter Default 0 DUMMY - 1 DUMMY - 2 DUMMY - 3 MIC AMP POWER SW 0: ON, 1: OFF 4 ALC AMP POWER SW 0: ON, 1: OFF 5 ALC LEVEL CTL +10dB: 0 +12dB: 1 7 REC BLOCK POWER SW 0: ON, 1: OFF 0 8 LINE OUT POWER SW 0: ON, 1: OFF 0 6 0 0 0 +14dB: 0 0 0 1 0 9 LINE MUTE SW 0: ON, 1: OFF 0 10 SPK POWER SW 0: ON, 1: OFF 1 11 DATA=1 1 1 1 1 1 : VOL MAX 0 12 DATA=2 13 DATA=4 ∫ 14 DATA=8 15 DATA=16 0 0 0 0 0 0 : VOL MIN (MUTE) 0 0 * EVR setting (the numeral shown in the left is decimal. For characteristics, see P9.) 0 Serial Transmission Timing VIH VIL CS tCS tWH tWL fMAX tCH tWC VIH CLOCK VIL tDS tDH VIH DATA VIL LSB • fMAX • tWL • tWH • tCS • tCH • tDS • tDH • tWC • VIH • VIL MSB (Max clock frequency) (Clock pulse width: Low) (Clock pulse width: High) (Chip enable setup time) (Chip enable hold time) (Data setup time) (Data hold time) (Chip enable pulse width) (High voltage lower limit) (Low voltage upper limit) 1.5MHz 333ns or more 333ns or more 333ns or more 333ns or more 333ns or more 333ns or more 333ns or more 2.3V to 3.5V 0V to 0.7V No.A1180-4/12 LA74302FN POWER ON Condition (SERIAL communication) H Power Supply L H Width of several hundreds NS POWER ON PULSE (Signal inside IC) c d L H e C.S. L ← First DATA → communication H ← → Delay of several hundreds NS POWER ON RESET (Singnal inside IC) f L POWER ON RESET condition → ←SERIAL communication condition ↑ First DATA hold The POWER ON RESET condition continues up to the second C.S rising (e) entered after falling (d) of POWER ON PULSE (c) generated inside IC at a time of power ON. Actually, because of delay of several hundreds NS in the IC, the first DATA condition begins in (f) and the normal SERIAL communication condition begins after (f). No.A1180-5/12 LA74302FN Electrical Characteristics Measurement Method at Ta=25°C, VCCL, D, SP=3.0V, f=1kHz Symbol Input Pin Conditions Output Pin Conditions Serial control setting 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 Circuit current ICCA1 12 VCCA=3.0V No input 12 FULL operation ICCA2 12 VCCA=3.0V No input 12 MIC/ALC/REC AMP VCCA=3.0V No input 12 ICCA3 12 POWER SAVE LINE AMP POWER SAVE ICCS1 26 VCCSP=3.0V No input 26 FULL operation ICCS2 26 VCCSP=3.0V No input 26 SPK AMP VCCD=3.0V 10 ICCD 10 POWER SAVE FULL operation No input REC output system VOR1 HDR 16 16 VIN=-44dBV f=1kHz 13 VIN=-44dBV f=1kHz 13 400 to 30kHz LPF used 400 to 30kHz LPF used THD: from 2nd to 5th harmonic ALM1 ALMD1 16 16 VIN=-28dBV f=1kHz 13 VIN=-28dBV f=1kHz 13 400 to 30kHz LPF used 400 to 30kHz LPF used THD: from 2nd to 5th harmonic ALM2 ALMD2 16 16 VIN=-12dBV f=1kHz 13 VIN=-12dBV f=1kHz 13 400 to 30kHz LPF used 400 to 30kHz LPF used THD: from 2nd to 5th harmonic VNOR 16 No input 13 JIS-A FILTER used FEQR1 16 VIN=-36dBV f=4kHz 13 f=4kHz/1kHz level VIN=-36dBV f=22kHz 13 VIN=-36dBV f=100kHz 13 VIN=-14dBV 5 FEQR2 FEQR3 16 16 ratio f=22kHz/1kHz level ratio f=100kHz/1kHz level ratio LINE output system VOL1 11 f=1kHz HDL 11 VIN=-14dBV f=1kHz 400 to 30kHz LPF used 5 400 to 30kHz LPF used THD: from 2nd to 5th harmonic VNOL 11 No input 5 JIS-A FILTER used VOML 11 f=1kHz 5 400 to 30kHz LPF used Level at which THD = 1% (from 2nd to 5th harmonic) FEQP1 FEQP2 FEQP3 11 11 11 VIN=-10dBV f=4kHz 5 VIN=-10dBV f=22kHz 5 VIN=-10dBV f=100kHz 5 f=4kHz/1kHz level ratio f=22kHz/1kHz level ratio f=100kHz/1kHz level ratio SPK output system (SPK end: measured with 8Ω ) VOSP1 THDSP 11 11 VIN=-14dBV f=1kHz 25 400 to 30kHz LPF used 27 Vol.=MAX VIN=-14dBV f=1kHz 25 400 to 30kHz LPF used 27 Vol.=MAX, THD: from 2nd to 5th harmonic Continued on next page. No.A1180-6/12 LA74302FN Continued from preceding page. Input Symbol Pi n Conditions Output Pin Conditions Serial control setting 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SPK output system (SPK end: measured with 8Ω ) VOSP2 11 VOSP3 11 VIN=-14dBV f=1kHz 25 400 to 30kHz LPF used 27 Vol.=TYP VIN=-14dBV f=1kHz 25 JIS-A FILTER used 27 Vol.=MIN SPK output system (SPK end: measured with 8Ω ) VNOSP 11 VOSSP 11 No input f=1kHz 25 JIS-A FILTER used 27 Vol.=MAX 25 400 to 30kHz LPF used 27 Vol.=MAX, Level at which THD = 10% (from 2nd to 5th harmonic) MIC output system VGMIC 21 Vin=-40dBV 17 400 to 30kHz LPF used 17 400 to 30kHz LPF used f=1kHz HDMIC 21 Vin=-40dBV f=1kHz THD: from 2nd to 5th harmonic VNOMIC 21 No input 17 JIS-A FILTER used VOMIC 21 f=1kHz 17 400 to 30kHz LPF used Level at which THD=1% (from 2nd to 5th harmonic) VMIC 22 No input 22 Measure the output voltage at 2.2kΩ load Description of Pin Functions Pin No. 1 Pin Description Removal of speaker ripple 2 Speaker input 3 EVR output 4 STANDBY control 5 LINE output 6 D GND 7 C.S. input 8 CLOCK input 9 DATA input 10 VCCD PB input 11 12 13 VCCA REC output 14 A GND 15 ALC detection 16 ALC input 17 MIC output 18 MIC Amp attenuator output 19 MIC Amp NFB 20 MIC GND 21 MIC input 22 INT power supply for MIC 23 MIC Removal of ripple for VCC and VREFL 24 SPK GND 25 Speaker positive-phase output 26 27 VCCSP Speaker negative-phase output 28 SPK GND No.A1180-7/12 LA74302FN LA74302FN BLOCK Diagram and Test Circuit Diagram 0.47μF 0.01μF MIC IN MIC GND MIC IN 21 20 2.2kΩ 4.7μF + 15 MIC VCC ALC DET VREFL LPF 0.1μF 23 ALC IN 16 MIC VCC 22 + 0.47μF 19 10μF 18 17 A GND 14 13 REC OUT 12 VCCA 3.0V + 24 25 EVR LPF 0.47μF 11 8Ω 26 VCCSP 3.0V MUTE 27 SP GND 10 VCCD 3.0V 9 DATA 8 CLOCK LOGIC VREFS 28 1 10μF PB IN 2 +0.47 μF 4.7 kΩ 3 4 5 0.1μF 4.7kΩ STANDBY CTL:HIGH 6 C.S 7 D GND LINE OUT LA74302FN EVR characteristics 0 -10 EVR attenuation (dBV) -20 -30 -40 -50 -60 -70 At input of PB IN = -9 dBV -80 -90 -100 0 5 10 15 20 25 30 Serial data set value (decimal) No.A1180-8/12 LA74302FN Table of Input/Output Forms of LA74302FN PIN 1 Pin Name VREFS DC Voltage AC Voltage 1.25V Description of Functions Equivalent Circuit Diagram in Pin VCCSP(=3.0V) Ripple removal pin 50kΩ 500Ω 1 35kΩ 2 SP IN 1.25V -10dBV Speaker input pin VCCSP(=3.0V) (EVR MAX at PB reference input) 27 SPK OUT- 1.25V -10dBV Speaker negative-phase output (EVR MAX at PB pin 400kΩ 6.8kΩ 2 27 reference input) 3 EVR OUT 1.64V -10dBV EVR output pin VCCA(=3.0V) (EVR MAX at PB reference input) 3 4 STANDBY control pin STANDBY H 400Ω 10kΩ 2V or more: STANDBY 4 * Puts all amplifiers excluding 60kΩ speakers into the STANDBY state. 5 LINE OUT 1.50V -6dBV LINE output pin VCCA(=3.0V) (At PB reference input) 5 5.7kΩ 10kΩ VREF 6 D_GND 0V GND pin for serial communication block 7 CS CS input pin 8 CLOCK CLOCK input pin 7 500Ω 8 9 DATA DATA input pin 9 Continued on next page. No.A1180-9/12 LA74302FN Continued from preceding page. PIN 10 Pin Name VCCD DC Voltage AC Voltage 3.0V Description of Functions Equivalent Circuit Diagram in Pin Power pin for driving of the serial communication block and all amplifier starter circuits 11 PB IN 1.64V -14dBV PB input pin VCCA(=3.0V) (Reference input level) 11 500Ω 50kΩ VREFL 12 VCCA 3.0V 13 REC OUT 1.50V Analog signal block power pin -14dBV REC output pin VCCA(=3.0V) (At MIC reference input) 9kΩ 13 5.1kΩ VREF 14 A GND 15 ALC DET 0V Analog signal block GND pin ALC detection pin VCCA(=3.0V) 1kΩ 15 500Ω 16 ALC IN 1.64V -44dBV ALC input pin VCCA(=3.0V) (At MIC reference input/output) 16 500Ω 50kΩ VREF 17 MIC OUT 1.64V -44dBV MIC output pin VCCA(=3.0V) (At MIC reference input) 17 500Ω 10.7kΩ 3.8kΩ VREF Continued on next page. No.A1180-10/12 LA74302FN Continued from preceding page. PIN Pin Name DC Voltage AC Voltage Description of Functions 18 MIC ATT 0.30V MIC Amp attenuator output pin 19 MIC NFB 1.64V MIC Amp NFB pin Equivalent Circuit Diagram in Pin VCCA(=3.0V) 4.3 kΩ 100kΩ 300Ω 18 950Ω 20 MIC GND 21 MIC IN 0V 1.64V 19 MIC Amp block GND pin -70dBV VCCA(=3.0V) MIC input pin (Reference input level) 21 500Ω 70kΩ VREFL 22 MIC VCC 2.30V MIC power pin VCCA(=3.0V) 100Ω 500Ω 22 20kΩ 23 VREFL 2.30V MIC VCC and VREFL ripple VCCA(=3.0V) removal pin 13kΩ 23 12.4kΩ 30.7kΩ 24 SP GND 0V Speaker GND pin 28 25 SPK OUT+ 1.25V -10dBV Speaker positive-phase output (EVR MAX at PB pin VCCSP(=3.0V) reference input) 25 5.1kΩ 5kΩ 27 26 VCCSP 3.0V Speaker power pin No.A1180-11/12 LA74302FN SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of May, 2008. Specifications and information herein are subject to change without notice. PS No.A1180-12/12