MAX9890AETA

19-2932; Rev 0; 8/03 Audio Click-Pop Suppressor General Description The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/powerup or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100µF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100µF coupling capacitors. The MAX9890 consumes 14µA of supply current and 0.001µA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV. The MAX9890 is available in a miniature (1.5mm ✕ 1.5mm ✕ 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm ✕ 3mm ✕ 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range. o 36dB Click-Pop Suppression o 2.7V to 5.5V Single-Supply Operation o Clickless/Popless Startup/Power-Up and Shutdown/Power-Down o 0.001µA Low-Power Shutdown Mode o THD+N < 0.003% Into 32Ω o ±8kV ESD Protection (Human Body Model) o Requires Only One 0.1µF Capacitor to Complete the Circuit o Low 14µA Supply Current o Tiny Packaging 9-Bump UCSP (1.5mm x 1.5mm x 0.6mm) 8-Pin TDFN (3mm x 3mm x 0.8mm) Features MAX9890 Ordering Information PART MAX9890AEBL-T* TEMP RANGE PINPACKAGE TOP MARK ADV AHA ADW AHB -40°C to +85°C 9 UCSP-9 -40°C to +85°C 8 TDFN-EP** -40°C to +85°C 9 UCSP-9 -40°C to +85°C 8 TDFN-EP** Applications High-End Notebook Audio Portable DVD Players Portable MP3 Players PDAs Cell Phones MAX9890AETA MAX9890BEBL-T* MAX9890BETA *Future product—contact factory for availability. **EP = Exposed pad. Simplified Block Diagram SINGLE SUPPLY 2.7V TO 5.5V Selector Guide PART MAX9890AEBL-T PIN-PACKAGE 9 UCSP-9 8 TDFN-EP 9 UCSP-9 8 TDFN-EP SWITCH TURN-ON TIME (ms) 200 200 330 330 INL OUTL MAX9890AETA MAX9890BEBL-T MAX9890BETA RAMP UP RAMP DOWN INR OUTR MAX9890 Typical Application Circuit and Pin Configurations appear at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Audio Click-Pop Suppressor MAX9890 ABSOLUTE MAXIMUM RATINGS (All Voltages are Referenced to GND) VCC ........................................................................................+6V CEXT, SHDN, OUT_ .................................................-0.3V to +6V IN_ ..............................................................-0.3V to (VCC + 0.3V) Continuous Current (IN_, OUT_).....................................±150mA Continuous Current (All Other Pins) .................................±20mA Continuous Power Dissipation (TA = +70°C) 8-Pin TDFN (derate 24.4mW/°C above +70°C) ..........1951mW 9-Bump UCSP (derate 4.7mW/°C above +70°C)..........379mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C Bump Temperature (soldering) Reflow ...........................................................................+235°C 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. ELECTRICAL CHARACTERISTICS (VCC = 3V, SHDN = VCC, GND = 0, CCEXT = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Supply Voltage Range Supply Current Shutdown Supply Current Input Voltage Range On-Resistance On-Resistance Flatness Output Discharge Resistance Input Off-Leakage Current VCC Power-Down Threshold (Note 3) Click-Pop Reduction ESD Protection DYNAMIC Turn-On Time (Note 4) Turn-Off Time Bandwidth Total Harmonic Distortion Plus Noise Off-Isolation, IN_ to OUT_ Crosstalk (Switches ON) THD+N RL = 32Ω, 30mW, f = 1kHz f = 20kHz, SHDN = GND, RL = 32Ω f = 20kHz VRIPPLE = 0.5VP-P at 20Hz, fIN = 3kHz at 1VP-P, RL = 32Ω Power-Supply Rejection Ratio (Note 6) PSRR VRIPPLE = 0.5VP-P at 1kHz, fIN = 3kHz at 1VP-P, RL = 32Ω VRIPPLE = 0.5VP-P at 20kHz, fIN = 3kHz at 1VP-P, RL = 32Ω tON tOFF MAX9890A MAX9890B (Note 5) 200 330 120 >100 0.003 -108 -100 -100 -100 -84 dB ms ns kHz % dB dB OUT_, Human Body Model VUVLO RON RFLAT(ON) ROUT(DIS) SHDN = GND VCC falling SYMBOL VCC ICC ISHDN (Note 2) SHDN = GND Inferred from RON test Over input voltage range VCC = 5.5V VCC = 2.7V 0 0.4 0.7 2 220 0.001 2.5 36 ±8 1 CONDITIONS Inferred from RON test MIN 2.7 14 0.001 TYP MAX 5.5 22 1 VCC 1 1.5 UNITS V µA µA V Ω mΩ kΩ µA V dB kV Over input voltage range 2 _______________________________________________________________________________________ Audio Click-Pop Suppressor ELECTRICAL CHARACTERISTICS (continued) (VCC = 3V, SHDN = VCC, GND = 0, CCEXT = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER LOGIC INPUT (SHDN) Logic-Input High Voltage Logic-Input Low Voltage Logic-Input Current VIH VIL IIN VCC = 2.7V to 5.5V VCC = 2.7V to 5.5V 2.0 0.8 ±1 V V µA SYMBOL CONDITIONS MIN TYP MAX UNITS MAX9890 Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: All devices are 100% tested at TA = +25°C. All temperature limits are guaranteed by design. Supply current is measured when switch is on (i.e., SHDN = VCC, t > tON). Supply voltage level where the device enters its power-down cycle. Turn-on time is measured from the time VCC = 3V and SHDN > VIH until the RON specification is met. Switch turn-off time is measured from the time SHDN < VIL or VCC < VUVLO until the off-isolation specification is met. See the Power-Supply Rejection Ratio section for test method. Typical Operating Characteristics (VCC = 3V, CCEXT = 0.1µF, typical values are at TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. IN_ VOLTAGE MAX9890 toc01 SUPPLY CURRENT vs. TEMPERATURE MAX9890 toc02 SHUTDOWN CURRENT vs. TEMPERATURE 900 SHUTDOWN CURRENT (pA) 800 700 600 500 400 300 200 100 0 VCC = 5.5V VCC = 2.7V SHDN = 0V MAX9890 toc03 0.8 0.7 ON-RESISTANCE (Ω) 0.6 0.5 0.4 VCC = 5V 0.3 0.2 0 1 2 3 4 5 IN_ VOLTAGE (V) VCC = 3V 40 35 SUPPLY CURRENT (µA) 30 25 20 15 10 5 0 -40 -15 10 35 60 VCC = 2.7V VCC = 5.5V 1000 85 -40 -15 10 35 60 85 TEMPERATURE (°C) TEMPERATURE (°C) _______________________________________________________________________________________ 3 Audio Click-Pop Suppressor MAX9890 Typical Operating Characteristics (continued) (VCC = 3V, CCEXT = 0.1µF, typical values are at TA = +25°C, unless otherwise noted.) ON-LOSS vs. FREQUENCY MAX9890 toc04 PHASE SHIFT vs. FREQUENCY MAX9890 toc05 OFF-ISOLATION vs. FREQUENCY -10 OFF-ISOLATION (dB) -30 -50 -70 -90 -110 -130 -150 RL = 16Ω 10 100 1k FREQUENCY (Hz) 10k 100k RL = 32Ω MAX9890 toc06 1.0 0.8 0.6 0.4 ON-LOSS (dB) 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 10 100 1k FREQUENCY (Hz) 10k RL = 16Ω RL = 32Ω 2 1 PHASE SHIFT (DEGREES) 0 -1 -2 -3 -4 -5 RL = 16Ω RL = 32Ω 10 100k 10 100 1k FREQUENCY (Hz) 10k 100k CROSSTALK vs. FREQUENCY MAX9890 toc07 TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER MAX9890 toc08 TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER VCC = 5V RL = 32Ω f = 1kHz MAX9890 toc09 -50 -60 -70 CROSSTALK (dB) -80 100 VCC = 5V RL = 16Ω f = 1kHz 100 10 10 THD+N (%) -90 -100 -110 -120 -130 -140 -150 10 100 1k FREQUENCY (Hz) 10k 100k 1 THD+N (%) 0 25 50 75 100 125 150 175 200 225 250 OUTPUT POWER (mW) 1 0.1 0.1 0.01 0.01 0.001 0.001 0 20 40 60 80 100 120 OUTPUT POWER (mW) TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER MAX9890 toc10 TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER MAX9890 toc11 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY VCC = 5V RL = 16Ω 0.1 THD+N (%) MAX9890 toc12 100 VCC = 3V RL = 16Ω f = 1kHz 100 VCC = 3V RL = 32Ω f = 1kHz 1 10 10 THD+N (%) THD+N (%) 1 1 0.01 OUTPUT POWER = 25mW 0.1 0.1 0.01 0.01 0.001 OUTPUT POWER = 150mW 0.001 0 25 50 75 100 125 150 175 200 225 OUTPUT POWER (mW) 0.001 0 20 40 60 80 100 120 OUTPUT POWER (mW) 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k 4 _______________________________________________________________________________________ Audio Click-Pop Suppressor Typical Operating Characteristics (continued) (VCC = 3V, CCEXT = 0.1µF, typical values are at TA = +25°C, unless otherwise noted.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX9890 toc13 MAX9890 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX9890 toc14 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY VCC = 3V RL = 32Ω 0.1 MAX9890 toc15 1 VCC = 5V RL = 32Ω 0.1 THD+N (%) 1 VCC = 3V RL = 16Ω 0.1 THD+N (%) OUTPUT POWER = 100mW 0.01 1 THD+N (%) 0.01 OUTPUT POWER = 20mW 0.01 OUTPUT POWER = 60mW 0.001 OUTPUT POWER = 80mW 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k 0.001 OUTPUT POWER = 25mW 0.001 OUTPUT POWER = 20mW 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k STARTUP WAVEFORM (DC) MAX9890 toc16 SHUTDOWN WAVEFORM (DC) MAX9890 toc17 SHDN 2V/div SHDN 2V/div VOUT 1V/div VOUT 1V/div VHEADPHONE 10mV/div 40ms/div 10s/div VHEADPHONE 10mV/div STARTUP WAVEFORM (AC) MAX9890 toc18 SHUTDOWN WAVEFORM (AC) MAX9890 toc19 SHDN 2V/div SHDN 2V/div VOUT 1V/div VOUT 1V/div VHEADPHONE 1V/div VHEADPHONE 1V/div 40ms/div 1s/div _______________________________________________________________________________________ 5 Audio Click-Pop Suppressor MAX9890 Pin Description PIN/BUMP TDFN 1 2 3 4 5 6 7 8 UCSP A2 A3 B3 C3 C2 C1 B1 A1 NAME VCC SHDN INL OUTL GND OUTR INR CEXT FUNCTION Power Supply. VCC accepts 2.7V to 5.5V input supply. Bypass VCC to GND with a 1µF capacitor. Active-Low Shutdown. Connect SHDN to GND to enter a 0.1µA shutdown mode. Connect SHDN to VCC for normal operation. Left-Channel Audio Input. Connect to output of headphone amplifier. Left-Channel Audio Output. AC couple to headphone. Ground Right-Channel Audio Output. AC couple to headphone. Right-Channel Audio Input. Connect to output of headphone amplifier. External Capacitor. Connect a 0.1µF capacitor from CEXT to GND. Detailed Description The MAX9890 provides click-and-pop suppression for single-supply devices such as CODECs and other headphone amplifiers that do not have click-and-pop suppression. Single-supply audio amplifier outputs have a DC bias voltage, VCC / 2, and require large output-coupling capacitors to block the DC voltage from the speaker. During startup or shutdown, the DC bias voltage is quickly raised or lowered (Figure 1), resulting in an audible transient through the headphone load. The MAX9890 prevents the audible transient by slowly ramping the DC bias in an S-shaped waveform (Figure 2), suppressing the large transient at the output of the coupling capacitor. The S-shaped waveform shapes the frequency spectrum, minimizing the amount of audible components present at the output. Internal switches couple the inputs to the outputs after the coupling capacitors have fully charged to the input common-mode bias voltage. When power is removed or the device is put into shutdown, the internal switches in the MAX9890 immediately disconnect the output and slowly discharge the coupling capacitors through 220kΩ resistors. The MAX9890 has an undervoltage lockout (UVLO) that prevents device operation when V CC is below the power-down threshold (2.5V, typ). The MAX9890 features ±8kV ESD (Human Body Model) protection on the audio outputs. old and SHDN = high for the part to start up. Once the supply voltage is above the power-down threshold and SHDN is high, the device charges the coupling capacitors to the input DC bias voltage using CEXT to control the ramp. After the DC bias ramp, the internal switches close, coupling the audio input to the output. The MAX9890 provides click-pop suppression even if the output blocking capacitors are already partially or fully charged. The MAX9890A features a 200ms switch turn-on time, enabling the use of up to 100µF coupling capacitors at the output for applications requiring only a limited lowfrequency response and a rapid turn-on time. The MAX9890B features a 330ms switch turn-on time, enabling the use of >100µF coupling capacitors at the output for extended low-frequency response applications. For optional click-pop suppression, mute the audio signal until after the turn-on time has elapsed. The internal switches stay closed as long as VCC is above the power-down threshold voltage and SHDN is high. Figures 1 and 2 show typical startup/power-up sequences with and without click-pop suppression. Shutdown If the supply voltage falls below the UVLO threshold or if S HDN is driven low, the device enters low-power shutdown mode. In low-power shutdown mode, quiescent current reduces to 0.001µA. The switches are immediately turned off and 220k Ω resistors slowly bleed the charge off the coupling capacitors. Figures 3 and 4 show typical shutdown/power-down sequences with and without click-pop suppression. For optiomal click-pop performance, mute the audio signal before shutting down the MAX9890. Startup The MAX9890 monitors V CC and S HDN . The UVLO holds the device off when VCC is below the powerdown threshold (V UVLO ) or S HDN is held low. The device needs both VCC above the power-down thresh6 _______________________________________________________________________________________ Audio Click-Pop Suppressor MAX9890 VCC/SHDN 2V/div VOUT 1V/div 0dB 0dB VCC/SHDN 2V/div VOUT 1V/div VHEADPHONE 50mV/div FFTHEADPHONE 20dB/div 40ms/div FFT: 25Hz/div VHEADPHONE 100mV/div FFTHEADPHONE 20dB/div 40ms/div FFT: 25Hz/div Figure 1. Startup/Power-Up Sequence Without Click-Pop Suppression Figure 2. Startup/Power-Up Sequence With Click-Pop Suppression VCC/SHDN 2V/div 0dB VOUT 1V/div VHEADPHONE 500mV/div FFTHEADPHONE 20dB/div 100ms/div FFT: 25Hz/div 100ms/div FFT: 25Hz/div 0dB VCC/SHDN 2V/div VOUT 1V/div VHEADPHONE 20mV/div FFTHEADPHONE 20dB/div Figure 3. Shutdown/Power-Down Sequence Without Click-Pop Suppression Figure 4. Shutdown/Power-Down Sequence With Click-Pop Suppression Switches The MAX9890’s internal switches connect the input to the output after the coupling capacitors are fully charged. The MAX9890A holds the switches open for 200ms and is ideal for coupling capacitors less than 100µF. The MAX9890B has a longer turn-on time of 330ms and is ideal with larger coupling capacitors less than 220µF. The internal switches have a low on-resistance (RON = 0.5Ω) and on-resistance flatness (RFLAT(ON) = 2mΩ) minimizing total harmonic distortion plus noise (THD+N). The relationship below shows the contribution to THD+N through the switch, due to on-resistance and on-resistance flat- _______________________________________________________________________________________ 7 Audio Click-Pop Suppressor MAX9890 VCC = 4.5V TO 5.5V, fVCC = 19kHz, RL = 32Ω, VIN = 1VP-P, fIN = 20kHz 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 15 17 19 21 23 25 FREQUENCY (kHz) VDC = 5V VAC = 1VP-P 19kHz IN_ VCC SHDN OUT_ RL OUTPUT SPECTRUM (dBV) VDC = 2.0V VAC = 1VP-P 20kHz RAMP UP RAMP DOWN IN_ OUT_ MAX9890 Figure 5. FFT for PSRR Figure 6. PSRR Test Circuit ness (on-resistance flatness is defined as the difference between the maximum and minimum values of on-resistance measured over the specific analog-signal range). THDMAXIMUM = RFLAT(ON) 4RLOAD × 100% The impedance of a headphone or speaker load and the output-coupling capacitor form a highpass filter with the -3dB point set by: f−3dB = 1 2πRLCOUT Power-Supply Rejection Ratio (PSRR) PSRR is the measurement of AC power-supply ripple or noise that couples to the output. Variations in supply voltage corrupt the audio signal, due to changes in the RON value by supply modulation. The FFT shown in Figure 5 was taken with a 19kHz 1VP-P sine wave onto the 5V DC supply voltage, and a 20kHz 1VP-P sine wave applied at IN_ with a 32Ω load is shown in Figure 6. The MAX9890 maintains a -100dB (typ) PSRR across the supply voltage range eliminating any corruption of the audio signal from supply variations. Therefore, with a zero audio signal, the RON variation due to supply voltage ripple does not contribute to any output signal modulation. where RL is the headphone impedance and COUT is the output-coupling capacitor value. The highpass filter is required by conventional single-ended, single powersupply headphone drivers to block the midrail DC bias component of the audio signal from the headphones. The drawback to the filter is that it can attenuate lowfrequency signals. Larger values of COUT reduce this effect but result in physically larger, more expensive capacitors. Figure 7 shows the relationship between the size of COUT and the resulting low-frequency attenuation. Note that the -3dB point for a 16Ω headphone with a 100µF blocking capacitor is 100Hz, well within the normal audio band, resulting in low-frequency attenuation of the reproduced signal. The MAX9890A and MAX9890B have different turn-on times to accommodate different size output-coupling capacitors (see Table 1). Using a capacitor smaller than the specified maximum allowed does not degrade click-pop suppression. Therefore, capacitors less than 100µF can be used with the A or B version devices. Low-Frequency Response In addition to the cost and size disadvantages of the output-coupling capacitors, these capacitors limit the amplifier’s low-frequency response and can distort the audio signal. 8 _______________________________________________________________________________________ Audio Click-Pop Suppressor MAX9890 Table 1. Coupling Capacitor LOW-FREQUENCY ROLLOFF (RL = 16Ω) 0 -3 -6 ATTENUATION (dB) -9 -12 -15 -18 -21 -24 -27 -30 10 100 1k FREQUENCY (Hz) 10k 100k 33µF 220µF 100µF 330µF CAPACITOR SIZE (µF) 33 47 100 150 220 330 470 MAX9890A TURN-ON TIME (200ms) √ √ √ * * — — MAX9890B TURN-ON TIME (300ms) √ √ √ √ √ * * *May experience some degradation of click-pop suppression. Figure 7. Low-Frequency Attenuation for Common DC-Blocking Capacitor Values External Capacitor (CCEXT) The external click-pop suppression capacitor at CEXT serves a dual purpose. On power-up, C CEXT is charged by an internal current source and is used to slowly ramp up the external coupling capacitors. When the device is powered down, CCEXT powers the internal circuitry used to drain the external coupling capacitors. A 0.1µF capacitor between CEXT and GND provides clickless/popless operation with coupling capacitors for both the MAX9890A and MAX9890B, even with the rapid removal of supply voltage. UCSP Applications Information For the latest application details on UCSP construction, dimensions, tape-carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, refer to the Application Note, “UCSP—A Wafer-Level Chip-Scale Package” available on Maxim’s website at www.maximic.com/ucsp. Chip Information TRANSISTOR COUNT: 1001 PROCESS: BiCMOS Applications Information Layout Good layout improves performance by decreasing the amount of stray capacitance and noise. To decrease stray capacitance, minimize PC board trace lengths and resistor leads, and place external components as close to the device as possible. Power Supply and Bypassing The excellent PSRR of the MAX9890 allows it to operate from noisy power supplies. In most applications, a 0.1µF capacitor from VCC to GND is sufficient. This bypass capacitor should be placed close to VCC. _______________________________________________________________________________________ 9 Audio Click-Pop Suppressor MAX9890 Pin Configurations (BUMPS ON BOTTOM) TOP VIEW MAX9890 VCC 1 SHDN 2 INL 3 OUTL 4 8 CEXT 7 INR 6 OUTR 5 GND B A 1 2 3 CEXT V CC SHDN INR MAX9890 INL TDFN-EP NOTE: GND IS CONNECTED TO THE UNDERSIDE METAL SLUG. C OUTR GND OUTL UCSP Typical Application Circuit 2.7V TO 5.5V 1 (A2) 1µF VCC CEXT 8 (A1) 0.1µF 2 (A3) SHDN STARTUP AND SHUTDOWN CONTROL RAMP-UP AND RAMP-DOWN CONTROL HPLOUT CODEC WITH INTEGRATED HEADPHONE DRIVERS HPROUT 3 (B3) INL OUTL 4 (C3) * 7 (B1) INR OUTR 6 (C1) * MAX9890 GND 5 (C2) ( ) UCSP BUMP. *USER-DEFINED VALUE. 10 ______________________________________________________________________________________ Audio Click-Pop Suppressor Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) MAX9890 ______________________________________________________________________________________ 11 Audio Click-Pop Suppressor MAX9890 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 6, 8, &10L, QFN THIN.EPS 1 2 L D A A2 PIN 1 ID D2 1 N 1 b PIN 1 INDEX AREA C0.35 [(N/2)-1] x e REF. e E DETAIL A E2 A1 k C L C L L e A e L SEMICONDUCTOR PROPRIETARY INFORMATION TITLE: DALLAS PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.80 mm NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY APPROVAL DOCUMENT CONTROL NO. REV. 21-0137 D COMMON DIMENSIONS SYMBOL A D E A1 L k A2 MIN. 0.70 2.90 2.90 0.00 0.20 MAX. 0.80 3.10 3.10 0.05 0.40 0.25 MIN. 0.20 REF. PACKAGE VARIATIONS PKG. CODE T633-1 T833-1 T1033-1 N 6 8 10 D2 1.50–0.10 1.50–0.10 1.50–0.10 E2 2.30–0.10 2.30–0.10 2.30–0.10 e 0.95 BSC 0.65 BSC 0.50 BSC JEDEC SPEC MO229 / WEEA MO229 / WEEC MO229 / WEED-3 b 0.40–0.05 0.30–0.05 0.25–0.05 [(N/2)-1] x e 1.90 REF 1.95 REF 2.00 REF SEMICONDUCTOR PROPRIETARY INFORMATION TITLE: DALLAS PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.80 mm APPROVAL DOCUMENT CONTROL NO. REV. 2 2 21-0137 D 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components.