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max98309/max98310 mono 1.4w class ab audio amplifiers ????????????????????????????????????????????????????????????????? maxim integrated products 1 general description the max98309/max98310 mono 1.4w class ab audio amplifiers offer low quiescent current while maintaining excellent snr and low 0.008% thd+n. these ics fea - ture excellent 90db psrr and state of the art click-and- pop suppression. the ics are offered with an internally fixed 0db, 3db, 6db, and 9db gain (max98310) or an externally set gain (max98309) through external resistors. the max98309 feature a 10ms or 100ms pin-selectable turn-on time, while the max98310 has a preset 5ms turn- on time. the max98309/max98310 are available in a (1.0mm x 1.0mm) 9-bump, 0.3mm pitch wlp, and are specified over the extended -40 n c to +85 n c temperature range. applications cell phones/smartphones digital cameras gps portable media players e-readers tablets benefits and features s enhances system performance ? differential input improves noise immunity ? industry-leading click-and-pop suppression ? high 90db psrr (f in = 217hz) s smaller solution size ? 1mm x 1mm wlp footprint s extends battery life ? low quiescent current s delivers robust system design ? thermal overload protection ? short-circuit protection s 1.2ma supply current (v dd = 3.7v) s 750mw into 8 i (v dd = 3.7v) s 2.5v to 5.5v supply operation s pin-selectable, internally-fixed gain (max98310) s 1.8v logic-compatible shdn input simplified block diagram 19-5912; rev 0; 6/11 ordering information appears at end of data sheet. for related parts and recommended products to use with this part, refer to www.maxim-ic.com/max98309.related . e v a l u a t i o n k i t a v a i l a b l e bias in- in+ out+ out- c in r in r in r f r f r f shdn gnd c in v dd gnd max98310 bias v dd 2.5v to 5.5v 2.5v to 5.5v gain bias 0.1f 1f r f bias in- in+ out+ out- c in r in r in shdn c in v dd gnd max98309 bias ton bias 0.1f 1f for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxims website at www.maxim-ic.com.
????????????????????????????????????????????????????????????????? maxim integrated products 2 max98309/max98310 mono 1.4w class ab audio amplifiers v dd to gnd ............................................................... -0.3v to 6v shdn to gnd ........................................................... -0.3v to 6v all other pins to gnd ............................... -0.3v to (v dd + 0.3v) continuous current v dd , gnd, out_ ....................................................... q 750ma in_, shdn , bias, gain, ton ......................................... q 20ma out_ short circuit to gnd or v dd duration ............ continuous out+ to out- short circuit duration ....................... continuous continuous power dissipation (t a = +70 n c) wlp (derate 11.9mw/ n c above +70 n c) ...................... 848mw junction temperature ..................................................... +150 n c operating temperature range .......................... -40 n c to +85 n c storage temperature range ............................ -65 n c to +150 n c soldering temperature (reflow).......................................+260 n c absolute maximum ratings note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four- layer board. for detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial . electrical characteristics (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = v dd (0db), c bias = 0.1f, c in = 0.47f, no load: r in = r f = 10k i (max98309), t a = t min to t max. typical values are at t a = +25 c, unless otherwise noted.) (note 2) package thermal characteristics (note 1) wlp junction-to-ambient thermal resistance ( b ja ) ......... 94c/w junction-to-case thermal resistance ( b jc ) ............... 41c/w stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional opera - tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. parameter symbol conditions min typ max units supply voltage range v dd guaranteed by psrr test 2.5 5.5 v undervoltage lockout uvlo v dd falling 1.8 2.3 v quiescent supply current i vdd shdn = v dd v dd = 3.7v 1.2 ma v dd = 5v 1.9 1.8 shutdown supply current i vdd_sd v shdn = 0v, t a = +25 n c 2 3 f a turn-on time t on max98309 shutdown to full operation ton = gnd 10 22.8 ms ton = v dd 100 max98310 shutdown to full operation 5.7 11.5 gain a v max98310 gain = v dd -0.25 0 +0.25 db gain = gnd 2.75 3 3.25 gain = unconnected 5.75 6 6.25 gain = bias 8.75 9 9.25 gain selection threshold max98310 gain = v dd 0.80 x v dd v gain = gnd 0.05 x v dd gain = unconnected 0.16 x v dd 0.24 x v dd gain = bias 0.35 x v dd 0.69 x v dd
????????????????????????????????????????????????????????????????? maxim integrated products 3 max98309/max98310 mono 1.4w class ab audio amplifiers electrical characteristics (continued) (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = v dd (0db), c bias = 0.1f, c in = 0.47f, no load: r in = r f = 10k i (max98309), t a = t min to t max. typical values are at t a = +25 c, unless otherwise noted.) (note 2) parameter symbol conditions min typ max units differential input resistance r indiff max98309, shdn = v dd 1000 k i max98310 gain = 0db 38.2 gain = 3db 31.7 gain = 6db 25.5 input bias current i inbias max98309/max98310, shdn = v dd q 1 f a shutdown input bias current i inbias_ shdn shdn = gnd, in_ = v dd or in_ = gnd -5 +5 f a output offset voltage v os t a = +25 n c (note 3) q 0.2 q 1 mv click-and-pop level k cp r l = 8 i , 32 samples per second, a-weighted, t a = +25 n c (notes 3, 4) into shutdown -66 dbv out of shutdown -66 common-mode bias voltage v bias voltage at bias 0.475 x v dd 0.5 x v dd 0.525 x v dd v input common-mode voltage range v cm inferred from cmrr test 0.5 v dd - 0.6 v common-mode rejection ratio cmrr max98310/max98310 guaranteed over input common- mode voltage range -50 -76 db f in = 1khz, r l = 8 i + 33 f h -62 power-supply rejection ratio psrr dc 2.5v to 5.5v 73 93 db v ripple = 200mv p-p (note 3) f in = 217hz 90 f in = 1khz 90 f in = 10khz 72 output power p out v dd = 3.7v, 1% thd+n r l = 8 i + 68 f h 0.750 w r l = 4 i + 33 f h 1.2 v dd = 3.7v, 10% thd+n r l = 8 i + 68 f h 0.9 r l = 4 i + 33 f h 1.5 v dd = 5v, 1% thd+n (note 5) r l = 8 i + 68 f h 1.4 r l = 4 i + 33 f h, thermally limited 2.1 v dd = 5v, 10% thd+n (note 5) r l = 8 i + 68 f h 1.7 r l = 4 i + 33 f h, thermally limited 2.7
????????????????????????????????????????????????????????????????? maxim integrated products 4 max98309/max98310 mono 1.4w class ab audio amplifiers electrical characteristics (continued) (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = v dd (0db), c bias = 0.1f, c in = 0.47f, no load: r in = r f = 10k i (max98309), t a = t min to t max. typical values are at t a = +25 c, unless otherwise noted.) (note 2) note 2: all specifications are 100% tested at t a = +25 c; temperature limits are guaranteed by design. note 3: inputs ac-coupled to gnd. note 4: mode transitions controlled by shdn . note 5: thermally limited by package. parameter symbol conditions min typ max units total harmonic distortion plus noise thd+n f in = 1khz, bw = 22hz to 22khz r l = 8 i + 68 f h, p out = 375mw 0.008 % r l = 4 i + 33 f h, p out = 750mw 0.06 0.02 f in = 6khz, bw = 22hz to 22khz r l = 8 i + 68 f h, p out = 375mw 0.01 signal-to-noise ratio snr a-weighted, v dd = 5v, p out = 1.4w, r l = 8 i + 33 f h 110 db output noise voltage v n a-weighted (note 3) 9 f v overcurrent protection threshold 2 a thermal-protection threshold +160 n c thermal-protection hysteresis 15 n c maximum capacitive load drive c l bridge-tied load capacitance 500 pf logic input ( shdn , ton) (max98309) input logic-high v ih 1.8v logic compliant 1.4 v input logic-low v il 1.8v logic compliant 0.4 v input leakage current high i ih t a = +25 n c 1 f a input leakage current low i il t a = +25 n c 1 f a
????????????????????????????????????????????????????????????????? maxim integrated products 5 max98309/max98310 mono 1.4w class ab audio amplifiers typical operating characteristics (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = gnd (r f = r in = 10k i ), c bias = 0.1f, c in = 1f, no load, unless otherwise noted.) total harmonic distortion plus noise vs. frequency max98309 toc01 frequency (khz) thd+n (%) 10k 1k 100 0.01 0.1 1 10 0.001 10 100k v dd = 4.2v r l = 4i p out = 300mw p out = 50mw total harmonic distortion plus noise vs. frequency max98309 toc02 frequency (hz) thd+n (%) 10k 1k 100 0.01 0.1 1 10 100 0.001 10 100k v dd = 5v r l = 8 i p out = 200mw p out = 1.2w total harmonic distortion plus noise vs. frequency max98309 toc03 frequency (hz) thd+n (%) 10k 1k 100 0.01 0.1 1 10 100 0.001 10 100k v dd = 3.7v r l = 4 i p out = 800mw p out = 50mw total harmonic distortion plus noise vs. frequency max98309 toc04 frequency (hz) thd+n (%) 10k 1k 100 0.01 0.1 1 10 100 0.001 10 100k v dd = 3.7v r l = 8 i p out = 50mw p out = 500mw total harmonic distortion plus noise vs. output power max98309 toc06 output power (mw) thd+n (%) 1500 1250 1000 750 500 250 0.01 0.1 1 10 100 0.001 0 1750 v dd = 5v r l = 8 i f in = 6khz f in = 300hz f in = 1khz total harmonic distortion plus noise vs. output power max98309 toc05 output power (mw) thd+n (%) 1500 1000 500 0.01 0.1 1 10 100 0.001 0 2000 v dd = 4.2v r l = 4 i f in = 6khz f in = 300hz f in = 1khz total harmonic distortion plus noise vs. output power max98309 toc07 output power (mw) thd+n (%) 1200 800 400 0.01 0.1 1 10 100 0.001 0 1600 v dd = 3.7v r l = 4i f in = 6khz f in = 300hz f in = 1khz total harmonic distortion plus noise vs. output power max98309 toc08 output power (mw) thd+n (%) 800 600 400 200 0.01 0.1 1 10 100 0.001 0 1000 v dd = 3.7v r l = 8 i f in = 6khz f in = 300hz f in = 1khz
????????????????????????????????????????????????????????????????? maxim integrated products 6 max98309/max98310 mono 1.4w class ab audio amplifiers typical operating characteristics (continued) (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = gnd (r f = r in = 10k i ), c bias = 0.1f, c in = 1f, no load, unless otherwise noted.) offset voltage vs. common-mode voltage max98309 toc09 common-mode voltage (v) v os (mv) 4 3 2 1 -4 -3 -2 -1 0 1 2 3 4 5 -5 0 5 v dd = 5v rl = 8 i offset voltage vs. common-mode voltage max98309 toc10 common-mode voltage (v) v os (mv) 3.0 2.5 0.5 1.0 1.5 2.0 -3 -2 -1 0 1 2 3 4 -4 0 3.5 v dd = 3.7v rl = 8i output power vs. supply voltage max98309 toc11 supply volatge (v) output power (mw) 5.0 4.5 4.0 3.5 3.0 500 1000 1500 2000 2500 0 2.5 5.5 f in = 1khz r l = 8 i thd+n = 10% thd+n = 10% load resistance (i) output power (w) 100 10 1 1k output power vs. load max98309 toc13 0.5 1.0 1.5 2.0 2.5 3.0 0 thd+n = 1% thd+n = 10% thermally limited v dd = 5v f in = 1khz z load = load + 68h output power vs. supply voltage max98309 toc12 supply volatge (v) output power (mw) 5.0 4.5 4.0 3.5 3.0 500 1000 1500 2000 2500 thd+n = 10% thd+n = 1% thermally limited 3000 3500 0 2.5 5.5 f in = 1khz r l = 4 i output power vs. load max98309 toc14 load resistance (i) output power (mw) 100 10 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 1 1k v dd = 3.7v f in = 1khz z load = load + 68h thd+n = 10% thd+n = 1%
????????????????????????????????????????????????????????????????? maxim integrated products 7 max98309/max98310 mono 1.4w class ab audio amplifiers typical operating characteristics (continued) (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = gnd (r f = r in = 10k i ), c bias = 0.1f, c in = 1f, no load, unless otherwise noted.) power dissipation vs. output power max98309 toc15 output power (mw) power dissipation (mw) 1500 1000 500 200 400 600 r l = 4 i 800 1000 1200 1400 0 0 2000 v dd = 5v f in = 1khz p out = p outl + p outr r l = 8 i power dissipation vs. output power max98309 toc16 output power (mw) power dissipation (mw) 1200 900 300 600 100 200 300 400 600 500 r l = 4 i r l = 8 i 700 800 0 0 1500 v dd = 3.7v f in = 1khz p out = p outl + p outr gain vs. frequency (max98310) max98309 toc17 frequency (hz) gain (db) 10k 1k 100 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 -2 -3 -4 -5 10 100k 1000k a v = 9db a v = 6db a v = 3db a v = 0db psrr vs. frequency (max98309) max98309 toc18 frequency (hz) psrr (db) 10k 1k 100 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -140 10 100k r l = 8 i v ripple = 200mv v dd = 5v v dd = 3.7v cmrr vs. frequency (max98309) max98309 toc20 frequency (hz) cmrr (db) 10k 1k 100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 10 100k r l = 8 i thd + n = 1% v dd = 3.7v v dd = 5v psrr vs. frequency (max98310) max98309 toc19 frequency (hz) psrr (db) 10k 1k 100 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -120 10 100k r l = 8 i v ripple = 200mv v dd = 3.7v v dd = 5v cmrr vs. frequency (max98310) max98309 toc21 frequency (hz) cmrr (db) 10k 1k 100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 10 100k r l = 8 i thd + n = 1% v dd = 3.7v v dd = 5v
????????????????????????????????????????????????????????????????? maxim integrated products 8 max98309/max98310 mono 1.4w class ab audio amplifiers typical operating characteristics (continued) (v dd = 3.7v, v gnd = 0v, shdn = v dd , gain = gnd (r f = r in = 10k i ), c bias = 0.1f, c in = 1f, no load, unless otherwise noted.) turn-on time (max98309) 10ms max98309 toc22 2ms/div turn-on time (max98309) 100ms max98309 toc23 20ms/div turn-on time max98310 max98309 toc24 1ms/div supply current vs. supply voltage max98309 toc25 supply voltage (v) supply current (ma) 5.0 4.5 4.0 3.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2.5 5.5 shutdown current vs. supply voltage max98309 toc27 supply voltage (v) shutdown current (a) 5.0 4.5 4.0 3.5 3.0 1 2 3 4 5 6 7 8 9 0 2.5 5.5 supply current vs. temperature max98309 toc26 temperature (c) supply current (ma) 60 35 10 -15 0.5 1.0 1.5 2.0 2.5 0 -40 85 v dd = 5v v dd = 3.7v shutdown current vs. temperature max98309 toc28 temperature (c) shutdown current (a) 60 35 10 -15 1 2 3 4 5 6 7 8 9 10 0 -40 85 v dd = 3.7v v dd = 5v
????????????????????????????????????????????????????????????????? maxim integrated products 9 max98309/max98310 mono 1.4w class ab audio amplifiers pin descriptions pin configurations pin name function max98309 max98310 a1 a1 out+ amplifier positive output a2 a2 shdn active-low shutdown input. connect to gnd to place the ic into shutdown. connect to v dd for normal operation. a3 a3 in- inverting audio input b1 b1 gnd ground b2 ton turn-on time selection. connect ton to gnd for a 10ms turn-on time. connect ton to v dd for a 100ms turn on time. b2 gain gain select input. see table 1 for gain settings. b3 b3 v dd power supply input. connect a 1 f f capacitor from v dd to gnd. c1 c1 out- amplifier negative output c2 c2 bias common-mode dc bias bypass. connect a 0.1 f f (min) capacitor to gnd. c3 c3 in+ noninverting audio input wlp top view (bump side down) max98309 1 + 2 3 b c a ou t+ shdn in- gnd out- bias to n v dd in+ wlp top view (bump side down) max98310 1 + 2 3 b c a ou t+ shdn in- gnd out- bias gain v dd in+
???????????????????????????????????????????????????????????????? maxim integrated products 10 max98309/max98310 mono 1.4w class ab audio amplifiers detailed description the max98309/max98310 mono 1.4w class ab audio amplifiers offer low quiescent current while maintaining excellent snr and low 0.008% thd+n. both ics feature excellent 90db psrr and state-of-the-art click-and-pop suppression. the ics are offered with an internally fixed 0db, 3db, 6db, and 9db gain (max98310) or an externally set gain (max98309) through external resistors. the max98309 features a 10ms or 100ms pin-selectable turn-on time, while the max98310 has a preset 5ms turn- on time. bias the ics operate from a single 2.5v to 5.5v power supply and feature an internally generated common-mode bias voltage of v dd /2 reference to ground. bias provides both click-and-pop suppression and sets the dc bias level for the audio outputs. choose the value of the bypass capacitor as described in the bias capacitor section. do not connect external loads to bias as this can affect the overall performance. turn-on time the max98309 external gain amplifier features a select - able turn-on time for optimized click-and-pop perfor - mance. connect ton to gnd for a 10ms turn-on time. connect ton to v dd for a 100ms turn-on time. the max98310 has a preset 5ms turn-on time. shutdown mode the ics feature a 1.8 f a low-power shutdown mode that reduces quiescent current consumption. when the active-low shutdown mode is entered, the ics internal bias circuitry is disabled, the amplifier outputs go high impedance, and bias is driven to gnd. click-and-pop suppression the ics feature maxims industry-leading click-and- pop suppression circuitry. during startup, the amplifier common-mode bias voltage ramps to the dc bias point. when entering shutdown, the amplifier outputs are high impedance between both outputs. this scheme mini - mizes the energy present in the audio band. applications information btl amplifier the ics are designed to drive a load differentially, a configuration referred to as bridge-tied load, or btl. the btl configuration ( figure 1 ) offers advantages over the single-ended configuration, where one side of the load is connected to ground. driving the load differentially doubles the output voltage compared to a single-ended amplifier under similar conditions. substituting 2 x v out(p-p) for v out(p-p) into the following equations yields four times the output power due to doubling of the output voltage: out (p p) rms rms out l v v 2 2 v 2 p r ? = = because the differential outputs are biased at midsupply, there is no net dc voltage across the load. this elimi - nates the need for dc-blocking capacitors required for single-ended amplifiers. these capacitors can be large, expensive, consume board space, and degrade low- frequency performance. power dissipation and heatsinking under normal operating conditions, the ics dissipate a significant amount of power. the maximum power dissi - pation is given in the absolute maximum ratings or can be calculated by the following equation: j(max) a d(max) ja t t p ? = where t j(max) is +150 n c, t a is the ambient temperature, and b ja is the reciprocal of the derating factor in c/w as specified in the absolute maximum ratings . figure 1. btl configuration +1 v out(p-p) v out(p-p) 2 x v out(p-p) -1
???????????????????????????????????????????????????????????????? maxim integrated products 11 max98309/max98310 mono 1.4w class ab audio amplifiers the increase in power delivered by the btl configuration directly results in an increase in internal power dissipa - tion over the single-ended configuration. the maximum internal power dissipation for a given v dd and load is given by the following equation: 2 dd d(max) 2 l 2v p r = if the internal power dissipation for a given application exceeds the maximum allowed for a given package, reduce power dissipation by increasing the ground plane heatsinking capability and the size of the traces to the device. see the layout and grounding section. other methods for reducing power dissipation are to reduce v dd , increase load impedance, decrease ambient temperature, reduce gain, or reduce input signal. thermal-overload protection limits total power dissipation in the max98309/max98310. when the junction temper - ature exceeds +160 n c, the thermal protection circuitry disables the amplifier. operation returns to normal once the die cools by 15 n c. amplifier gain fixed differential gain (max98310) the max98310 features four internally fixed differential gain options selectable by gain ( table 1 ). this simplifies design, decreases required application footprint size, and eliminates external gain-setting resistors. external differential gain (max98309) the max98309 features an external gain option. resistors r f and r in . see the simplified block diagram and set the gain of the amplifier as follows: f v in r a r = where a v is the desired voltage gain. hence, an r in of 10k i and an r f of 20k i yields a gain of 2v/v or 6db. r f can be either fixed or variable, allowing the use of a digitally controlled potentiometer to alter the gain under software control. input filter the fully differential amplifier inputs can be biased at voltages other than midsupply. the common-mode feedback circuit adjusts for input bias, ensuring the out - puts are still biased at midsupply. input capacitors are not required as long as the input voltage is within the specified common-mode range listed in the electrical characteristics table. if input capacitors are used, input capacitor c in , in con - junction with the input resistor r in , forms a highpass filter that removes the dc bias from an incoming signal. the ac-coupling capacitor allows the amplifier to bias the sig - nal to an optimum dc level. assuming zero-source imped - ance, the -3db point of the highpass filter is given by: 3db in in 1 f 2 r c ? = setting f -3db too high affects the low-frequency response of the amplifier. use capacitors with adequately low volt - age coefficients, such as x7r ceramic capacitors with a high voltage rating. capacitors with higher voltage coef - ficients result in increased distortion at low frequencies. bias capacitor bias is the output of the internally generated v dd /2 bias voltage. the bias bypass capacitor, c bias , improves psrr and thd+n by reducing power supply and other noise sources at the common-mode bias node, and also generates the clickless/popless startup dc bias wave - form for the speaker amplifiers. bypass bias with a 0.1 f f capacitor to gnd. larger values of c bias (up to 1 f f) improve psrr. supply bypassing proper power-supply bypassing ensures low-noise, low- distortion performance. connect a 1 f f ceramic capacitor from v dd to gnd. add additional bulk capacitance as required by the application. locate the bypass capacitor as close as possible to the device. layout and grounding good pcb layout is essential for optimizing performance. use large traces for the power-supply inputs and amplifier outputs to minimize losses due to parasitic trace resis - tance and route heat away from the device. good ground - ing improves audio performance, and prevents any digital switching noise from coupling into the audio signal. table 1. fixed differential gain gain connection gain (db) v dd 0 gnd 3 unconnected 6 bias 9
???????????????????????????????????????????????????????????????? maxim integrated products 12 max98309/max98310 mono 1.4w class ab audio amplifiers ordering information + denotes a lead(pb)-free/rohs-compliant package. part temp range gain pin-package top mark max98309 ewl+ -40 n c to +85 n c external 9 wlp +aiy max98310 ewl+ -40 n c to +85 n c fixed 9 wlp +aiz
???????????????????????????????????????????????????????????????? maxim integrated products 13 max98309/max98310 mono 1.4w class ab audio amplifiers package information for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. 9 wlp (0.3mm pitch) w91d1+1 21-0486 refer to application note 1891 e d aaaa pin 1 indicator marking a3 a2 a1 a see note 7 0.05 s s d1 e1 b e sd se b a side view -drawing not to scale- 1 2 3 a 21-0486 b 0.64 0.16 0.48 0.025 0.21 0.60 0.60 0.30 w91d1+1 0.95 0.98 0.95 0.98 b c top view bottom view a 1 title document control no. rev. 1 1 approval package outline 9 bumps, wlp pkg. 0.3mm pitch common dimensions a a2 a1 a3 b e1 d1 e sd se 0.05 0.03 0.03 basic basic 0.00 basic 0.00 basic basic ref basic min max max min e d pkg. code depopulated bumps none notes: 1. terminal pitch is defined by terminal center to center value. 2. outer dimension is defined by center lines between scribe lines. 3. all dimensions in millimeter. 4. marking shown is for package orientation reference only. 5. tolerance is 0.02 unless specified otherwise. 6. all dimensions apply to pbfree (+) package codes only. 7. front - side finish can be either black or clear.
maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 14 ? 2011 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. max98309/max98310 mono 1.4w class ab audio amplifiers revision history revision number revision date description pages changed 0 6/11 initial release

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