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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. 1007 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 : info@samhop.com.tw
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
GENERAL DESCRIPTION
The SM7513 is a stereo audio power amplifier that drives 3 W/channel of continuous RMS power into a 3- 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. To simplify design, the speaker volume level is adjusted by applying a up/down gain control to the up/down terminals.
FEATURES
* Advanced DC Volume Control With 2-dB Steps From -40 dB to 20 dB * Depop circuitry * Low quiescent current * 1uA shutdown current * 3W into 3 from 5.5V supply * Thermal protection * Compact configuration and minimum external components
APPLICATIONS
* Mini Speaker * Wireless headphone * Car multimedia system
PIN ASSIGNMENTS (TOP VIEW)
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
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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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Pin Name ROUTN RPVDD RLINEIN VDD LLINEIN LPVDD LOUTN LPGND LOUTP SHUTDOWN BYPASS DOWN UP SE/BTL ROUTP RPGND
I/O O I I O O I I I I I O -
Function Right channel negative audio output Supply voltage terminal for power stage Right channel line input Supply voltage terminal Left channel line input Supply voltage terminal for power stage Left channel negative audio output Power ground Left chanel positive audio output
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
Terminal for volume down control, high active Terminal for volume up control, high active
Output MUX control. When this terminal is high,SE outputs are selected. When this terminal is low, BTL outputs are selected
Right channel positive audio output Power ground
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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 Supply Voltage, VDD, PVDD Input Voltage Continous total power dissipation Operaing junction temperature range Storage temperatuer range Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds Symbol VSS VI TJ Tstg Rating -0.3 ~ 6 - 0.3 ~ VDD +0.3 See Dissipation Rating Table - 40 ~ 150 - 65 ~ 150 260
o o o
Unit V V C C C
DISSIPATION RATING TABLE
PACKAGE
SOP /SSOP
TA25C Power Rating
2.7mW
Derating Factor Above TA=25C
21.8 mW/C
TA=70C Power Rating
1.7W
TA=85C Power Rating
1.4W
RECOMMENDED OPERATING CONDITION
Characteristic Supply Voltage, VDD, PVDD High-level input voltage VIH VIL Low-level input voltage VIL Operating free-air temperature TA SHUTDOWN --40 SHUTDOWN SE/BTL, UP, DOWN Symbol VSS VIH Condition -SE/BTL, UP, DOWN Min. 4.0 0.8 VDD 2.0 0.4 VDD 0.6 85
o
Typ.
Max. 5.5
Unit V V
V C
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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 Output offset voltage (measured differentially) Power supply rejection ratio High-level input current (SE/BTL,SHUTDOWN) Low-level input current(SE/BTL,SHUTDOWN,VOLUME) Supply current, no load Symbol VOO PSRR llH llL Condition VDD=5.5V,Gain=20dB, SE/BTL=0V VDD=PVDD=4.0V to 5.5V VDD=PVDD=5.5V, Vl=VDD=PVDD VDD=PVDD=5.5V , Vl=0V 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=3, PO=2W,Stereo SHUTDOWN=0.0V 5.5 3.0 8.0 5.0 1.5 1 20 -42 -70 1 1 10 6.0 mA Min. Typ. Max. 60 Unit mV dB uA uA
lDD
Supply current,max power into a 3 load Supply current,shutdown mode
lDD lDD(SD)
ARMS uA
OPERATING CHARACTERISTICS (VDD =PVDD = 5V, RL = 3, Gain = 6dB, Ta = 25oC unless otherwise noted)
Characteristic Symbol Condition THD=1%, f=1 kHz, RL=4 THD=10%, f=1 kHz, RL=4 Output Power (1) PO THD=1%, f=1 kHz, RL=8 THD=10%, f=1 kHz, RL=8 THD=10%, f=1 kHz, RL=3,VDD=5.5V Total harmonic distortion+noise High-level output voltage Low-level output voltage Bypass voltage(Nominally VDD/2)(2) Maximum output power bandwidth Supply ripple rejection ratio Initial gain THD+N VOH VOL V(BYPASS) BOM PO =1W, RL=8, f=20Hz to 20kHz RL=8, Measured between output and VDD RL=8, Measured between output and GND Measured at pin 11, No load, VDD=5.5V THD = 5% f=1 kHz, Gain = 0 dB, C(BYP) = 0.47uF f= 1kHz , RL = 8 BTL SE -2 Min. Typ. 1.9 2.4 1.3 1.6 3 < 0.6 600 400 2.65 2.75 > 20 -63 -57 -4 -6 2.85 % mV mV V kHz dB dB W Max. Unit
(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
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V.1.0 Apr 30,2007
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
FUNCTIONAL BLOCK DIAGRAM
RLINEIN
_ +
BYP BYP
_ +
ROUT+
_ +
BYP EN
SE/BTL
ROUT-
SE/BTL
MUX Control Power Management
PVDD PGND VDD BYPASS SHUTDOWN AGND
UP/DOWN
32-Step Volume Control
LLINEIN
_ +
BYP BYP
_ +
LOUT+
_ +
BYP EN
SE/BTL
LOUT-
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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 Cs
Power Supply
16 ROUTRPGND 15 PVDD ROUT+ 14 RLINEIN SE/BTL 13 VDD UP 12 LLINEIN DOWN 11
100k
Cc
2
VDD
100k 1k
Ci
Right Audio Input
3 VDD
Cs
4
VDD
Headphones
Left Audio Input
Ci
5
VDD Cc
1k
Power Supply
6
LPVDD
BYPASS
C(BYP)
7
LOUT-
SHUTDOWN
10
System Control
8
LPGND
LOUT+
9
Left Speaker
Figure 1. SM7513 Using stereo line inputs application circuit
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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 -4dB2dB 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 VDD/2
T
2T
2T
t
t * T ~ 300ms 20% = Figure 3. Up key be pressed continually
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SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
THD+N vs. FREQUENCY
THD+N vs. FREQUENCY
THD+N-Total Harmonic Distortion+ Noise-%
f-FREQUENCY-Hz
THD+N-Total Harmonic Distortion+ Noise-%
f-FREQUENCY-Hz
THD+N vs. FREQUENCY
THD+N vs. Pout
THD+N-Total Harmonic Distortion+ Noise-%
f-FREQUENCY-Hz
THD+N-Total Harmonic Distortion+ Noise-%
Po-Output Power-W
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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 vs. Pout
Po-Output Power-W
THD+N-Total Harmonic Distortion+ Noise-%
Po-Output Power-W
CLOSED LOOP RESPONSE
OUTPUT NOISE VOLTAGE vs. FREQUENCY
f-FREQUENCY-Hz
Vn-Output Noise Voltage-uVrms
Closed Loop Gain-dB
f-FREQUENCY-Hz
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V.1.0 Apr 30,2007
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
PACKAGE OUTLINE
SM7513S 16PIN SOP
D L
Unit : mm
16
9
0.381x45
E
H
1
1.271 typ.
8
0.406 typ.
0.203typ.
D1
1
8
A2
A
0.10max
A1
16
9
SYMBOLS A A1 D E H L
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
NOTES: 1. JEDEC OUTLINEN/A 2. DIMENSIONS " DDOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.MOLD FLASH PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. 3. DIMENSION "EDOES NOT INCLUDE INTER-LEAD FLASH, OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE.
THERMALLY ENHANCED DIMENSIONS
PAD DICE 95 x 18E E1 2.19 REF D1 4.12 REF
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V.1.0 Apr 30,2007
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SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
PACKAGE OUTLINE
SM7513F 16PIN SSOP 16 9 16 E1 Thermal Pad D1 9 Unit : mm
E
1 e
8 b 1 8
Thermal Pad
S
0.127 TYP
GAUGE PLANE
A2
SEATING PLANE
0.25
D
A
= 0~8
0.05
L L1
SYMBOLS A A1 A2 b D E1 E e L1 L s
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
A
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 " DDOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.MOLD FLASH PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. 3. DIMENSION "EDOES 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
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SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
Ordering Information
Package SOP-16 SSOP-16
Marking SM7513S SM7513F
Part Number ( Tape and Reel ) SM7513S SM7513F
Lead Free Information
Package SOP-16 SSOP-16 Marking SM7513SL SM7513FL Lead Free Part Number SM7513SL SM7513FL
Green Information
Package SOP-16 SSOP-16 Marking SM7513SG SM7513FG Green Part Number SM7513SG SM7513FG
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V.1.0 Apr 30,2007

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