MAX9788ETI+-MAX9788EWP+TG45 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX9788EWP+TG45 ,14VP-P, Class G Ceramic Speaker DriverBlock Diagram2.7V TO 5.5VV CPVCC DDFB+MAX9788RFB+CINRIN+IN+ OUT+CLASS G+OUTPUTIN- OUT-STAGE-RC IN-I ..
MAX9789AETJ+ ,Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone AmplifiersELECTRICAL CHARACTERISTICS(V = PV = CPV = HPV = HP_EN = V (MAX9789 only) = +5V, V = V = V = SPKR_EN ..
MAX9789AETJ+ ,Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiersfeatures an internal LDO that can be usedMAX9789CETJ+ 32 TQFN-EP* Yes 100as a clean power supply fo ..
MAX9789AETJ+T ,Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone AmplifiersBlock Diagramslow-power shutdown mode and draw only 0.3µA.The MAX9789/MAX9790 operate from a single ..
MAX9789CETJ+T ,Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiersfeatures Maxim’s DirectDrivearchitecture that produces a ground-referenced output♦ High +90dB PSRR, ..
MAX978EEE ,Single/Dual/Quad / SOT23 / Single-Supply / High-Speed / Low-Power ComparatorsFeaturesThe MAX976/MAX978/MAX998 dual/quad/single, high-' Single-Supply Operation Down to 2.7Vspeed ..
MB89475 ,F2MC-8L/Low Power/Low Voltage Microcontrollersapplications forconsumer product.2* : F MC stands for FUJITSU Flexible Microcontroller.n
MB89535A ,F2MC-8L/Low Power/Low Voltage MicrocontrollersFUJITSU SEMICONDUCTORDS07-12547-4EDATA SHEET8-bit Original Microcontroller CMOS2F MC-8L MB89530A Se ..
MB89535A ,F2MC-8L/Low Power/Low Voltage MicrocontrollersFEATURES• Wide range of package options• Two types of QFP packages (1 mm pitch, 0.65 mm pitch) • LQ ..
MB89537A , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89537A , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89537AC , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series

MAX9788ETI+-MAX9788EWP+TG45
14VP-P, Class G Ceramic Speaker Driver
General Description
The MAX9788 features a mono Class G power amplifier
with an integrated inverting charge-pump power supply
specifically designed to drive the high capacitance of a
ceramic loudspeaker. The charge pump can supply
greater than 700mA of peak output current at 5.5VDC,
guaranteeing an output of 14VP-P.
The MAX9788 maximizes battery life by offering high-
performance efficiency. Maxim’s proprietary Class G
output stage provides efficiency levels greater than
Class AB devices without the EMI penalties commonly
associated with Class D amplifiers.
The MAX9788 is ideally suited to deliver the high out-
put-voltage swing required to drive ceramic/piezoelec-
tric speakers.
The device utilizes fully differential inputs and outputs,
comprehensive click-and-pop suppression, shutdown
control, and soft-start circuitry. The MAX9788 is fully spec-
ified over the -40°C to +85°C extended temperature range
and is available in small lead-free 28-pin TQFN (4mm x
4mm) or 20-bump WLP (2mm x 2.5mm) packages.
FeaturesIntegrated Charge-Pump Power Supply—No
Inductor Required14VP-PVoltage Swing into Piezoelectric Speaker2.7V to 5.5V Single-Supply OperationClickless/Popless OperationSmall Thermally Efficient Packages
4mm x 4mm 28-Pin TQFN
2mm x 2.5mm 20-Bump WLP
MAX9788
14VP-P,Class G Ceramic Speaker Driver
Ordering Information
MAX9788IN+
FB+
RIN+
CPVDD
2.7V TO 5.5V
RIN-
CIN
CIN
IN-
FB-
OUT+
OUT--
CLASS G
OUTPUT
STAGE
CHARGE
PUMP
RFB+
RFB-
VCC
CPGNDGND
Simplified Block Diagram
19-0710; Rev 3; 5/08
Typical Application Circuit/Functional Diagram and Pin
Configurations appear at end of data sheet.
EVALUATION KIT
AVAILABLE
Cell Phones
Smartphones
MP3 Players
Personal Media Players
Handheld Gaming
Consoles
Notebook Computers
Applications
PARTPIN-PACKAGETEMP RANGE
MAX9788EWP+TG4520 WLP-40°C to +85°C
MAX9788ETI+28 TQFN-EP*-40°C to +85°C
+Denotes a lead-free package.
T = Tape and reel.
G45 indicates protective die coating.
*EP = Exposed pad.
MAX9788
14VP-P,Class G Ceramic Speaker Driver
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= VCPVDD= VSHDN= 3.6V, VGND= VCPGND= 0V, RIN+= RIN-= 10kΩ, RFB+= RFB-= 10kΩ, RFS= 100kΩ, C1 = 4.7µF, C2 =
10µF; load connected between OUT+ and OUT-, ZLOAD= 10Ω+ 1µF, unless otherwise stated; TA= TMINto TMAX, unless otherwise
noted. Typical values are at TA= +25°C.) (Notes 2, 3)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation 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.
(Voltages with respect to GND.)
VCC, CPVDD.............................................................-0.3V to +6V
PVSS, SVSS...............................................................-6V to +0.3V
CPGND..................................................................-0.3V to +0.3V
OUT+, OUT-...................................(SVSS- 0.3V) to (VCC+ 0.3V)
IN+, IN-, FB+, FB-......................................-0.3V to (VCC+ 0.3V)
C1N .........................................(PVSS- 0.3V) to (CPGND + 0.3V)
C1P ......................................(CPGND - 0.3V) to (CPVDD+ 0.3V)
FS, SHDN...................................................-0.3V to (VCC+ 0.3V)
Continuous Current Into/Out of
OUT+, OUT-, VCC, GND, SVSS.....................................800mA
CPVDD, CPGND, C1P, C1N, PVSS.................................800mA
Any Other Pin ..................................................................20mA
Continuous Power Dissipation (TA= +70°C)
20-Bump WLP (derate 10.3mW/°C
above +70°C) (Note 1)..................................................827mW
28-Pin TQFN (derate 20.8mW/°C above +70°C)........1667mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Bump Temperature (soldering) Reflow............................+235°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
GENERAL
Supply Voltage RangeVCCInferred from PSRR test2.75.5V
Quiescent CurrentICC812mA
Shutdown CurrentISHDNSHDN = GND0.35µA
Turn-On TimetONTime from shutdown or power-on to full
operation50ms
Input DC Bias VoltageVBIASIN_ inputs (Note 4)1.11.241.4V
ILOAD = 0mA (slow mode)5583110Charge-Pump Oscillator
FrequencyfOSC
ILOAD > 100mA (normal mode)230330470
kHz
VIH1.4SHDN Input Threshold
(Note 5)VIL0.4V
SHDN Input Leakage Current±1µA
SPEAKER AMPLIFIER
TA = +25°C±3±15Output Offset VoltageVOSTMIN ≤ TA ≤ TMAX±20mV
Click-and-Pop LevelVCP
Peak voltage into/out of shutdown
A-weighted, 32 samples per second
(Notes 6, 7)
-67dBV
Voltage GainAV(Notes 4, 8)11.51212.5dB
VCC = 5V7.1
VCC = 4.2V5.9
VCC = 3.6V5.1Output VoltageVOUTf = 1kHz, 1% THD+N
VCC = 3.0V4.2
VRMS
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, see /thermal-tutorial.
MAX9788
14VP-P,Class G Ceramic Speaker Driver
Note 2:All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 3:Testing performed with resistive and capacitive loads to simulate an actual ceramic/piezoelectric speaker load,= 1µF + 10Ω.
Note 4:Input DC bias voltage determines the maximum voltage swing of the input signal. Inputing a signal with a peak voltage
of greater than the input DC bias voltage results in clipping.
Note 5:1.8V logic compatible.
Note 6:Amplifier/inputs AC-coupled to GND.
Note 7:Testing performed at room temperature with 10Ωresistive load in series with 1µF capacitive load connected across the BTL
output for speaker amplifier. Mode transitions are controlled by SHDN. VCPis the peak output transient expressed in dBV.
Note 8:Voltage gain is defined as: [VOUT+- VOUT-] / [VIN+- VIN-].
Note 9:PVSSis forced to -3.6V to simulate boosted rail.
Note 10:Dynamic range is calculated by measuring the RMS voltage difference between a -60dBFS output signal and the noise
floor, then adding 60dB. Full scale is defined as the output signal needed to achieve 1% THD+N.
RIN_and RFB_have 0.5% tolerance. The Class G output stage has 12dB of gain. Any gain or attenuation at the input
stage will add to or subtract from the gain of the Class G output.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
VCC = 5V6.5
VCC = 4.2V5.4
VCC = 3.6V4.7Output VoltageVOUTf = 10kHz, 1% THD+N,
ZL = 1µF + 10Ω, no load
VCC = 3.0V3.3
VRMS
VCC = 5V2.4
VCC = 4.2V1.67
VCC = 3.6V1.25Continuous Output PowerPOUT1% THD+N, f = 1kHz,
RL = 8Ω
VCC = 3.0V0.8
VCC = 2.7V to 5.5V6377
f = 217Hz, 200mVP-P ripple77
f = 1kHz, 200mVP-P ripple77
Power-Supply Rejection Ratio
(Note 4)PSRR
f = 20kHz, 200mVP-P ripple58
ZL = 1µF + 10Ω, VOUT = 1kHz / 1.9VRMS0.002Total Harmonic Distortion Plus
NoiseTHD+NZL = 1µF + 10Ω, VOUT = 1kHz / 4.0VRMS0.08%
Signal-to-Noise RatioSNRVOUT = 5.1VRMS, A-weighted108dB
Common-Mode Rejection RatioCMRRfIN = 1kHz (Note 9)68dB
VCC = 5V106Dynamic RangeDRA-weighted (Note 10)VCC = 3.6V105dB
ELECTRICAL CHARACTERISTICS (continued)
(VCC= VCPVDD= VSHDN= 3.6V, VGND= VCPGND= 0V, RIN+= RIN-= 10kΩ, RFB+= RFB-= 10kΩ, RFS= 100kΩ, C1 = 4.7µF, C2 =
10µF; load connected between OUT+ and OUT-, ZLOAD= 10Ω+ 1µF, unless otherwise stated; TA= TMINto TMAX, unless otherwise
noted. Typical values are at TA= +25°C.) (Notes 2, 3)
MAX9788
14VP-P,Class G Ceramic Speaker Driver
Typical Operating Characteristics
(VCC= VCPVDD= VSHDN= 3.6V, VGND= VCPGND= 0V, RIN+= RIN-= 10kΩ, RFB+= RFB-= 10kΩ, RFS= 100kΩ, C1 = 4.7µF, C2 =
10µF, ZL= 1µF + 10Ω; load terminated between OUT+ and OUT-, unless otherwise stated; TA= TMINto TMAX, unless otherwise noted.
Typical values are at TA= +25°C.) (Notes 1, 2)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9788 toc01
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001100k
VCC = 2.7V
VOUT = 3VRMS
VOUT = 1.25VRMS
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9788 toc02
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001100k
VCC = 3.6V
VOUT = 1.9VRMS
VOUT = 4VRMS
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9788 toc03
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001100k
VCC = 5V
VOUT = 3VRMS
VOUT = 5.9VRMS
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT VOLTAGE
MAX9788 toc04
OUTPUT VOLTAGE (VRMS)
THD+N (%)21
VCC = 2.7V
fIN = 10kHz
fIN = 1kHz
fIN = 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT VOLTAGE
MAX9788 toc05
OUTPUT VOLTAGE (VRMS)
THD+N (%)3412
VCC = 3.6V
fIN = 10kHz
fIN = 1kHz
fIN = 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT VOLTAGE
MAX9788 toc06
OUTPUT VOLTAGE (VRMS)
THD+N (%)654231
fIN = 20Hz
fIN = 10kHz
fIN = 1kHz
VCC = 5V
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9788 toc07
PSRR (dB)
10k1k100
-90100k
VRIPPLE = 200mVP-P
POWER CONSUMPTION
vs. OUTPUT VOLTAGE
MAX9788 toc08
POWER CONSUMPTION (mW)21
VCC = 2.7V
fIN = 1kHz
1% THD+N
POWER CONSUMPTION
vs. OUTPUT VOLTAGE
MAX9788 toc09312
VCC = 3.6V
fIN = 1kHz
1% THD+N
POWER CONSUMPTION (mW)
MAX9788
14VP-P,Class G Ceramic Speaker Driver
POWER CONSUMPTION
vs. OUTPUT VOLTAGE
MAX9788 toc10
OUTPUT VOLTAGE (VRMS)
POWER CONSUMPTION (mW)54321
VCC = 5V
fIN = 1kHz
1% THD+N
STARTUP WAVEFORM
MAX9788 toc11
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/div
SHUTDOWN WAVEFORM
MAX9788 toc12
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/divypical Operating Characteristics (continued)
(VCC= VCPVDD= VSHDN= 3.6V, VGND= VCPGND= 0V, RIN+= RIN-= 10kΩ, RFB+= RFB-= 10kΩ, RFS= 100kΩ, C1 = 4.7µF, C2 =
10µF, ZL= 1µF + 10Ω; load terminated between OUT+ and OUT-, unless otherwise stated; TA= TMINto TMAX, unless otherwise noted.
Typical values are at TA= +25°C.) (Notes 1, 2)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9788 toc15
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (
SUPPLY CURRENT
vs. OUTPUT VOLTAGE
MAX9788 toc16
SUPPLY CURRENT (mA)4532107
VCC = 5V
fIN = 1kHz
CLASS G OUTPUT WAVEFORM
MAX9788 toc13
200μs/div
OUT+ - OUT-
10V/div
OUT-
5V/div
OUT+
5V/div
1% THD+N
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9788 toc14
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
2.56.0
MAX9788
14VP-P,Class G Ceramic Speaker Driver
OUTPUT AMPLITUDE
vs. FREQUENCY
MAX9788 toc17
FREQUENCY (Hz)
OUTPUT AMPLITUDE (V
RMS
10k1k100100k
VCC = 3.6V
VCC = 2.7V
VCC = 5V
FREQUENCY RESPONSE
MAX9788 toc18
FREQUENCY (Hz)
GAIN (dB)
10k1k100100k
VOUT = 2VRMS
WLP PACKAGE THERMAL DISSIPATION
AND OUTPUT POWER vs. TEMPERATURE
MAX9788 toc19
TEMPERATURE (°C)
WLP PACKAGE THERMAL DISSIPATION (W)706050403020100-10-20-30
OUTPUT POWER (W)
PACKAGE THERMAL
DISSIPATION
OUTPUT POWER
VCC = 5V
Pin Descriptionypical Operating Characteristics (continued)
(VCC= VCPVDD= VSHDN= 3.6V, VGND= VCPGND= 0V, RIN+= RIN-= 10kΩ, RFB+= RFB-= 10kΩ, RFS= 100kΩ, C1 = 4.7µF, C2 =
10µF, ZL= 1µF + 10Ω; load terminated between OUT+ and OUT-, unless otherwise stated; TA= TMINto TMAX, unless otherwise noted.
Typical values are at TA= +25°C.) (Notes 1, 2)
PIN
TQFNWLPNAMEFUNCTION
1B2SHDNShutdown
2, 5, 6, 8, 11, 17,
19, 23, 25, 28—N.C.No Connection. No internal connection.A2C1PCharge-Pump Flying Capacitor, Positive Terminal. Connect a 4.7µF
capacitor between C1P and C1N.A3CPVDDCharge-Pump Positive SupplyA4FB-Negative Amplifier FeedbackA5IN-Negative Amplifier InputB5IN+Positive Amplifier InputB4FB+Positive Amplifier FeedbackC5FSCharge-Pump Frequency Set. Connect a 100kΩ resistor from FS to
GND to set the charge-pump switching frequency.
14, 22D1, D5VCCSupply Voltage. Bypass with a 10µF capacitor to GND.
15, 21C2, C4SVSSAmplifier Negative Power Supply. Connect to PVSS.D4OUT-Negative Amplifier OutputD3GNDGroundD2OUT+Positive Amplifier OutputC1PVSSCharge-Pump Output. Connect a 10µF capacitor between PVSS and
CPGND.B1C1NCharge-Pump Flying Capacitor, Negative Terminal. Connect a 4.7µF
capacitor between C1N and C1P.A1CPGNDCharge-Pump Ground. Connect to GND.
MAX9788
14VP-P,Class G Ceramic Speaker Driver
Detailed Description
The MAX9788 Class G power amplifier with inverting
charge pump is the latest in linear amplifier technology.
The Class G output stage offers improved performance
over a Class AB amplifier while increasing efficiency to
extend battery life. The integrated inverting charge
pump generates a negative supply capable of deliver-
ing greater than 700mA.
The Class G output stage and the inverting charge
pump allow the MAX9788 to deliver a 14VP-Pvoltage
swing, up to two times greater than a traditional single-
supply linear amplifier.
Class G Operation
The MAX9788 Class G amplifier is a linear amplifier that
operates within a low (VCCto GND) and high (VCCto
SVSS) supply range. Figure 1 illustrates the transition
from the low to high supply range. For small signals,
the device operates within the lower (VCCto GND) sup-
ply range. In this range, the operation of the device
is identical to a traditional single-supply Class AB
amplifier where:
ILOAD = IN1
As the output signal increases so a wider supply is need-
ed, the device begins its transition to the higher supply
range (VCCto SVSS) for the large signals. To ensure a
seamless transition between the low and high supply
ranges, both of the lower transistors are on so that:
ILOAD= IN1 + IN2
As the output signal continues to increase, the transi-
tion to the high supply is complete. The device then
operates in the higher supply range, where the opera-
tion of the device is identical to a traditional dual-sup-
ply Class AB amplifier where:
ILOAD= IN2
During operation, the output common-mode voltage of
the MAX9788 adjusts dynamically as the device transi-
tions between supply ranges.
Utilizing a Class G output stage with an inverting
charge pump allows the MAX9788 to realize a 20VP-P
output swing with a 5V supply.
IN1IN1
OFF
VCC
SVSS
LOW SUPPLY RANGE OPERATION
IP = IN1
IN2IN2
VCC
BTL CLASS G SUPPLY TRANSITION
SVSS
SUPPLY TRANSITION
IP = IN1 + IN2P
OFF
VCC
SVSS
HIGH SUPPLY RANGE OPERATION
IP = IN2

Partno	Mfg	Dc	Qty	Available	Descript
MAX9788ETI+	MAXIM	N/a	9	avai	14VP-P, Class G Ceramic Speaker Driver
MAX9788EWP+TG45 \|MAX9788EWPTG45	MAX	N/a	1580	avai	14VP-P, Class G Ceramic Speaker Driver