三合微科股份有限公司 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL The information in this document is subject to change without notice. c SAMHOP Microelectronics Corp. All Rights Reserved. 台北縣新店市民權路100號7樓 7F,No.100,Min-Chyuan Road, Hsintien, Taipei Hsien, Taiwan, R.O.C. TEL: 886-2-2218-3978/2820 FAX: 886-2-2218-3320 Email : [email protected] SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL GENERAL DESCRIPTION FEATURES The SM7513 is a stereo audio power amplifier that drives 3 W/channel of continuous RMS power into a 3-Ω load. Advanced up/down volume control minimizes external components and allows BTL (speaker) volume control and SE (earphone) volume control. Wireless headphone benefit from the integrated feature set that minimizes external components without sacrificing functionality. * Advanced DC Volume Control With 2-dB Steps To simplify design, the speaker volume level is adjusted by applying a up/down gain control to the up/down terminals. * 3W into 3Ω from 5.5V supply From -40 dB to 20 dB * Depop circuitry * Low quiescent current * 1uA shutdown current * Thermal protection * Compact configuration and minimum external components APPLICATIONS PIN ASSIGNMENTS (TOP VIEW) * Mini Speaker * Wireless headphone * Car multimedia system ROUTN RPVDD RLINEIN VDD LLINEIN LPVDD LOUTN LPGND 1 2 3 4 5 6 7 8 Thermal Pad 16 15 14 13 12 11 10 9 RPGND ROUTP SE/BTL UP DOWN BYPASS SHUTDOWN LOUTP SM7513 16PIN Page 1 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL PIN ASSIGNMENTS ROUTN RPVDD RLINEIN VDD LLINEIN LPVDD LOUTN LPGND 1 2 3 4 5 6 7 8 Thermal Pad 16 15 14 13 12 11 10 9 RPGND ROUTP SE/BTL UP DOWN BYPASS SHUTDOWN LOUTP SM7513 16PIN PIN DESCRIPTIONS No. Pin Name I/O Function 1 ROUTN O 2 RPVDD - 3 RLINEIN I 4 VDD - 5 LLINEIN I Left channel line input 6 LPVDD - Supply voltage terminal for power stage 7 LOUTN O Left channel negative audio output 8 LPGND - Power ground 9 LOUTP O Left chanel positive audio output 10 SHUTDOWN I 11 BYPASS I Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal Tap to voltage divider for internal midsupply bias generator used for analog reference 12 DOWN I Terminal for volume down control, high active 13 UP I Terminal for volume up control, high active 14 SE/BTL I Output MUX control. When this terminal is high,SE outputs are selected. When this terminal is low, BTL outputs are selected 15 ROUTP O Right channel positive audio output 16 RPGND - Power ground Right channel negative audio output Supply voltage terminal for power stage Right channel line input Supply voltage terminal Page 2 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL MAXIMUM RATINGS (Ta = 40~85oC) Characteristic Symbol Rating Unit VSS -0.3 ~ 6 V VI - 0.3 ~ VDD +0.3 V Continous total power dissipation - See Dissipation Rating Table Operaing junction temperature range TJ - 40 ~ 150 o C Tstg - 65 ~ 150 o C - 260 o C Supply Voltage, VDD, PVDD Input Voltage Storage temperatuer range Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds - DISSIPATION RATING TABLE PACKAGE TA≤25°C Power Rating Derating Factor Above TA=25°C TA=70°C Power Rating TA=85°C Power Rating SOP /SSOP 2.7mW 21.8 mW/°C 1.7W 1.4W RECOMMENDED OPERATING CONDITION Characteristic Supply Voltage, VDD, PVDD Symbol Condition Min. VSS -- 4.0 VIH SE/BTL, UP, DOWN 0.8 VDD VIH SHUTDOWN 2.0 VIL SE/BTL, UP, DOWN 0.4 VDD VIL SHUTDOWN 0.6 TA -- High-level input voltage Low-level input voltage Operating free-air temperature Page 3 -40 Typ. Max. Unit 5.5 V V 85 V o C V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL ELECTRICAL CHARACTERISTICS (VDD =PVDD = 5.5V, Ta = 25oC unless otherwise noted) Characteristic Symbol Condition VOO VDD=5.5V,Gain=20dB, SE/BTL=0V Output offset voltage (measured differentially) Power supply rejection ratio PSRR High-level input current (SE/BTL,SHUTDOWN) Low-level input current(SE/BTL,SHUTDOWN,VOLUME) VDD=PVDD=4.0V to 5.5V -42 Typ. Max. Unit 60 mV -70 dB llH VDD=PVDD=5.5V, Vl=VDD=PVDD 1 uA llL VDD=PVDD=5.5V , Vl=0V 1 uA Supply current, no load lDD Supply current,max power into a 3Ω load lDD Supply current,shutdown mode Min. VDD=PVDD=5.5V,SE/BTL=0V, SHUTDOWN=2V VDD=PVDD=5.5V,SE/BTL=5.5V, SHUTDOWN=2V VDD=5V=PVDD,SE/BTL=0V, SHUTDOWN=2V,RL=3Ω, PO=2W,Stereo lDD(SD) 5.5 8.0 10 3.0 5.0 6.0 1.5 SHUTDOWN=0.0V 1 mA ARMS 20 uA Max. Unit OPERATING CHARACTERISTICS (VDD =PVDD = 5V, RL = 3Ω, Gain = 6dB, Ta = 25oC unless otherwise noted) Characteristic Output Power (1) Total harmonic distortion+noise Symbol PO THD+N High-level output voltage VOH Low-level output voltage VOL Bypass voltage(Nominally VDD/2)(2) V(BYPASS) Maximum output power bandwidth BOM Condition Min. Typ. THD=1%, f=1 kHz, RL=4Ω 1.9 THD=10%, f=1 kHz, RL=4Ω 2.4 THD=1%, f=1 kHz, RL=8Ω 1.3 THD=10%, f=1 kHz, RL=8Ω 1.6 THD=10%, f=1 kHz, RL=3Ω,VDD=5.5V 3 PO =1W, RL=8Ω, f=20Hz to 20kHz RL=8Ω, Measured between output and VDD RL=8Ω, Measured between output and GND Measured at pin 11, No load, VDD=5.5V < 0.6 2.65 THD = 5% Supply ripple rejection ratio f=1 kHz, Gain = 0 dB, C(BYP) = 0.47uF Initial gain f= 1kHz , RL = 8Ω W 2.75 % 600 mV 400 mV 2.85 V > 20 BTL -63 SE -57 -2 -4 kHz dB -6 (1) Output power is measured at the output terminals of the IC. (2) At 4V < VDD < 5.5V the DC bypass voltage is approximately VDD/2 Page 4 V.1.0 Apr 30,2007 dB SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL FUNCTIONAL BLOCK DIAGRAM RLINEIN _ _ + BYP ROUT+ + BYP _ ROUT- + BYP SE/BTL EN SE/BTL MUX Control PVDD PGND VDD Power Management UP/DOWN BYPASS 32-Step Volume Control SHUTDOWN AGND LLINEIN _ _ + BYP LOUT+ + BYP _ + BYP Page 5 LOUTEN SE/BTL V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL APPLICATION INFORMATION The figure is schematic diagram of typical for car multimedia system application circuit. Right Speaker 1 Cc 16 ROUT- RPGND PVDD ROUT+ Cs 2 Power Supply 15 VDD 100kΩ 3 Ci Right Audio Input 14 RLINEIN 1kΩ 100kΩ SE/BTL VDD Cs Left Audio Input Power Supply 4 Ci 5 6 7 8 13 UP VDD 12 LLINEIN LPVDD LOUT- LPGND DOWN BYPASS SHUTDOWN LOUT+ VDD Headphones VDD 11 C(BYP) 10 System Control Cc 1kΩ 9 Left Speaker Figure 1. SM7513 Using stereo line inputs application circuit Page 6 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL VOLUME CONTROL The output volume of SM7513 is respectively controlled by two input pins, UP and Down pin. The UP pin controls the volume increment, and the DOWN pin controls the volume decrement. It increases/decreases ±2dB each step. Both are all active high. The SM7513 built-in a RC oscillator and generates a based frequency for volume output register to count increasingly or decreasingly. It starts to count when the UP/DOWN pin is pressed. If the voltage on UP/DOWN pin is disappeared in specific unit period, the volume increment or decrement is not accepted, which means no action, keeps the original voltage and clears the value in count register. Therefore, there is no increment or decrement to make the volume uncertainly. After power on or shutdown, SM7513 will has -4dB±2dB initial gain. The mapping between output volume increment / decrement and active unit period is shown in Figure 2. When the UP Key keeps high for one active unit period, the output gain increases 2db after the Key is released. When the UP Key keeps low and the DOWN Key become high level for one active unit period, the output gain decreases 2db. The action of pressed the UP/DOWN Key continually is shown in Figure 3. The gain is increased/ decreased after one unit periods. If the Key is continually be pressed more than two unit periods, the gain is increased/ decreased until to maximum 20dB or -65dB. VIN T UP t Vout VDD/2 t VIN T DOWN t Figure 2 . How the volume change with respect to Up/Down timing cotrol VIN UP Vout T 2T 2T VDD/2 t t *T~ = 300ms ± 20% Figure 3. Up key be pressed continually Page 7 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL THD+N vs. FREQUENCY THD+N-Total Harmonic Distortion+ Noise-% THD+N-Total Harmonic Distortion+ Noise-% THD+N vs. FREQUENCY f-FREQUENCY-Hz f-FREQUENCY-Hz THD+N vs. Pout THD+N-Total Harmonic Distortion+ Noise-% THD+N-Total Harmonic Distortion+ Noise-% THD+N vs. FREQUENCY f-FREQUENCY-Hz Po-Output Power-W Page 8 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL THD+N vs. Pout THD+N-Total Harmonic Distortion+ Noise-% THD+N vs. Pout Po-Output Power-W Po-Output Power-W OUTPUT NOISE VOLTAGE vs. FREQUENCY Closed Loop Gain-dB Vn-Output Noise Voltage-uVrms CLOSED LOOP RESPONSE f-FREQUENCY-Hz f-FREQUENCY-Hz Page 9 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL PACKAGE OUTLINE Unit : mm SM7513S 16PIN SOP 1 8 H 9 E 16 0.381x45° L D 0.203typ. 0.406 typ. 1.271 typ. 1 8 16 9 A1 E1 A A2 D1 0.10max SYMBOLS A A1 D E H L θ° MIN. 1.35 0.05 9.81 3.81 5.80 0.41 0° NOM. 1.75 0.15 10.02 4.0 6.20 1.27 8° THERMALLY ENHANCED DIMENSIONS PAD DICE 95 x 18E E1 2.19 REF D1 4.12 REF NOTES: 1. JEDEC OUTLINE：N/A 2. DIMENSIONS “ D＂DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.MOLD FLASH PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. 3. DIMENSION “E＂DOES NOT INCLUDE INTER-LEAD FLASH, OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. Page 10 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL PACKAGE OUTLINE SM7513F 16PIN SSOP Unit : mm Thermal Pad D1 9 16 9 1 8 E2 E E1 16 8 1 e b Thermal Pad 0.127 TYP S 0.25 D GAUGE PLANE L A 0.05 θ= 0~8 A A2 SEATING PLANE L1 SYMBOLS A A1 A2 b D E1 E e L1 L s θ MIN. ― 0.00 0.80 0.19 4.90 4.30 0.45 0.20 0° NOM. ― ― 1.00 ― 5.00 4.40 6.40 BSC 0.65 BSC 1.00 REF 0.60 ― ― MAX. 1.20 0.15 1.05 0.30 5.10 4.50 NOTES: 1. JEDEC OUTLINE: MO-153 AB/MO-153 ABT(THERMALLY VARIATIONS ONLY) 2. DIMENSIONS “ D＂DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.MOLD FLASH PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. 3. DIMENSION “E＂DOES NOT INCLUDE INTER-LEAD FLASH, OR PROTRUSIONS. INTER-LEAD FLASH AND 0.75 ― 8° PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. THERMALLY ENHANCED DIMENSIONS PAD DICE 118 x 11E MIN. 1.98 E1 MAX. 3.00 D1 MIN. 1.98 MAX. 3.00 Page 11 V.1.0 Apr 30,2007 SAMHOP Microelectronics Corp. 3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL Ordering Information Package Marking Part Number ( Tape and Reel ) SOP-16 SM7513S SM7513S SSOP-16 SM7513F SM7513F Package Marking Lead Free Part Number SOP-16 SM7513SL SM7513SL SSOP-16 SM7513FL SM7513FL Package Marking Green Part Number SOP-16 SM7513SG SM7513SG SSOP-16 SM7513FG SM7513FG Lead Free Information Green Information Page 12 V.1.0 Apr 30,2007