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 19-4431; Rev 0; 2/09
KIT ATION EVALU BLE AVAILA
DirectDrive Video Amplifier with Short-to-Battery Protection
General Description Features
Short-to-Battery Protection on Video Output (Up to 18V) DirectDrive Sets Video Output Black Level Near Ground DirectDrive Eliminates DC-Blocking Capacitors at the Output 3.3V Single-Supply Operation Reconstruction Filter with 9.5MHz Passband and 42dB Attenuation at 27MHz DC-Coupled Input/Output Transparent Input Sync-Tip Clamp 4V/V Internal Fixed Gain
MAX9532
The MAX9532 DirectDrive (R) video filter amplifier is specifically designed to work in harsh environments such as automobiles. The MAX9532 provides integrated short-to-battery protection, allowing the output of the device to survive shorts up to 18V. Maxim's DirectDrive technology eliminates large output coupling capacitors and sets the output video black level near ground. DirectDrive requires an integrated charge pump and an internal linear regulator to create a clean negative power supply so that the amplifier can pull the sync below ground. The charge pump injects so little noise into the video output that the picture is visibly flawless. The MAX9532 features an internal reconstruction filter that smoothes the steps and reduces the spikes on the video signal from the video digital-to-analog converter (DAC). The reconstruction filter typically provides 1dB passband flatness of 9.5MHz and 42dB attenuation at 27MHz. The input of the MAX9532 can be directly connected to the output of a video DAC. The MAX9532 also features a transparent input sync-tip clamp, allowing AC-coupling of input signals with different DC biases. The MAX9532 features an internal fixed gain of 4V/V. The input full-scale video signal is nominally 0.5VP-P, and the output full-scale video signal is nominally 2VP-P. The short-to-battery protection utilizes an internal switch in series with the amplifier output. When the MAX9532 detects that the output is short circuited to the battery voltage, the internal switch is disabled, protecting the MAX9532 from voltages up to 18V. The MAX9532 is available in a 3mm x 3mm, 10-pin MAX(R) package and is specified over the -40C to +125C automotive operating temperature range.
Applications
Automotive Infotainment Systems
Ordering Information
PART PIN-PACKAGE TEMP RANGE MAX9532AUB+ 10 MAX -40C to +125C +Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration and Functional Diagram/Typical Application Circuits appear at end of data sheet.
Simplified Block Diagram
MAX9532
500mVP-P VIDEO IN LPF AV = 4V/V TRANSPARENT CLAMP 0V LINEAR REGULATOR CHARGE PUMP
JACKSENSE OUT 2VP-P VIDEO
DirectDrive is a registered trademark of Maxim Integrated Products, Inc. MAX is a registered trademark of Maxim Integrated Prodcuts, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
ABSOLUTE MAXIMUM RATINGS
VDD to GND ..............................................................-0.3V to +4V VDD to CPGND .........................................................-0.3V to +4V CPGND to GND.....................................................-0.1V to +0.1V IN to GND .................................................................-0.3V to +4V JACKSENSE to GND........................................The higher of VSS and -2V to (VSS + 22V) OUT to GND ............The higher of VSS and -1.5V to (VSS + 22V) VSS to CPVSS ........................................................-0.1V to +0.1V Continuous Current IN, JACKSENSE............................................................20mA C1P, C1N, CPVSS ........................................................50mA OUT ..............................................................................50mA Continuous Power Dissipation (TA = +70C) 10-Pin MAX (derate 8.8mW/C above +70C) ........707.3mW Operating Temperature Range .........................-40C to +125C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
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
(VDD = 3.3V, GND = CPGND = 0, RL = 100 to GND, C1 = C2 = C3 = 1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER DC-COUPLED INPUT Guaranteed by output voltage swing 3V < VDD < 3.135V Guaranteed by output voltage swing 3.135V < VDD < 3.6V VIN = 0.5V 0.1V VIN 0.5V Sync-tip clamp Guaranteed by output voltage swing 3V < VDD < 3.135V Guaranteed by output voltage swing VDD > 3.135V Sync-tip clamp; percentage reduction in sync pulse (0.15VP-P, 75 source impedance), guaranteed by input clamping current measurement Sync-tip clamp 2 300 VDD AV Guaranteed by PSRR Guaranteed by output voltage swing VIN = 150mV 3.0 3.92 -0.120 3.3 15 4 3.6 23 4.08 +0.150 -6.2 0 0 0 0 2 5 -1.63 +3.5 0.5 VP-P 0.7 0.5 V 0.7 3.3 A M mV SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage Range
VIN
Input Current Input Resistance SYNC-TIP CLAMP INPUT Sync-Tip Clamp Level
IIN RIN VCLP
Input Voltage Range
Sync Crush
2.3
%
Input Clamping Current Max Input Source Resistance GENERAL Supply Voltage Range Quiescent Supply Current DC Voltage Gain Output Level
3.3
A V mA V/V V
2
_______________________________________________________________________________________
DirectDrive Video Amplifier with Short-to-Battery Protection
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, GND = CPGND = 0, RL = 100 to GND, C1 = C2 = C3 = 1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER SYMBOL CONDITIONS Measured at output, VDD = 3.135V, VIN = VCLP to (VCLP + 0.7V), RL = 100 to -2V and +2V Measured at output, VDD = 3V, VIN = VCLP to (VCLP + 0.5V), RL = 100 to -2V and +2V Output Short-Circuit Current Output Resistance Short Circuit to Battery Current Power-Supply Rejection Ratio ROUT Short-to-battery, VOUT = 9V to 16V 3.0V VDD 3.6V VIN = 0.5VP-P, reference frequency is 100kHz Attenuation at 5.5MHz Attenuation at f = 27MHz 46 -1.29 20 42 0.7 0.5 % deg 78 +1 dB MIN 2.744 TYP 2.8 MAX 2.856 VP-P 1.96 2 90 0.1 3 2.04 mA mA dB UNITS
MAX9532
Output Voltage Swing
Filter
Differential Gain Differential Phase
DG DP
5-step modulated staircase, f = 4.43MHz, RL = 100 to -2V and +2V 5-step modulated staircase, f = 4.43MHz, RL = 100 to -2V and +2V 2T = 200ns; bar time is 18s; the beginning 2.5% and the ending 2.5% of the bar time is ignored; RL = 100 to -2V and +2V 2T = 200ns, RL = 100 to -2V and +2V 2T = 200ns; bar time is 18s; the beginning 2.5% and the ending 2.5% of the bar time is ignored; RL = 100 to -2V and +2V 5-step staircase; RL = 100 to -2V and +2V 100kHz f 5MHz, outputs are 2VP-P; RL = 100 to -2V and +2V Measured at outputs, RL = 100 to -2V and +2V 100kHz f 5MHz, RL = 100 to -2V and +2V f = 100KHz, 100mVP-P; RL = 100 to -2V and +2V f = 5MHz 120 Referred to GND After detection of short-to-battery After short-to-battery has been removed 4.9 7.3
2T Pulse-to-Bar K Rating 2T Pulse Response 2T Bar Response Nonlinearity Group Delay Distortion Glitch Impulse Caused by Charge Pump Switching Peak Signal to RMS Noise Power-Supply Rejection Ratio Output Impedance JACKSENSE Input Resistance BATTERY DETECTION Threshold Accuracy Video Output Disconnect Time Video Output Connect Time
0.5 0.4 0.1 0.1 13 40 64 47 2 250 8 20 10 20 8.7
K% K% K% % ns pVs dB dB k V s ms
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3
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, GND = CPGND = 0, RL = 100 to GND, C1 = C2 = C3 = 1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER CHARGE PUMP Switching Frequency fCP 220 440 660 kHz SYMBOL CONDITIONS MIN TYP MAX UNITS
Note 1: All devices are 100% production tested at TA = +25C. Specifications over temperature limits are guaranteed by design.
Typical Operating Characteristics
(VDD = 3.3V, GND = CPGND = 0, video output has RL = 100 to GND, C1 = C2 = C3 = 1F, TA = +25C, unless otherwise noted.)
SMALL-SIGNAL GAIN FLATNESS vs. FREQUENCY
MAX9532 toc01
SMALL-SIGNAL GAIN vs. FREQUENCY
5 0 -5 -10 GAIN (dB) GAIN (dB) -15 -20 -25 -30 -35 -40 0.1 VIN = 0.025VP-P 1 10 100 1.0 0.8 0.6 0.4
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX9532 toc02
0 -5 -10 GAIN (dB) -15 -20 -25 -30 -35
0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0.1 VIN = 0.025VP-P 1 10 100
VIN = 0.5VP-P 0.1 1 10 100
-40 FREQUENCY (MHz) NOTE: GAIN VALUES (PLOTTED IN dB) ARE NORMALIZED VALUES RELATIVE TO THE EXPECTED VALUE OF 4V/V.
FREQUENCY (MHz) NOTE: GAIN VALUES (PLOTTED IN dB) ARE NORMALIZED VALUES RELATIVE TO THE EXPECTED VALUE OF 4V/V.
FREQUENCY (MHz) NOTE: GAIN VALUES (PLOTTED IN dB) ARE NORMALIZED VALUES RELATIVE TO THE EXPECTED VALUE OF 4V/V.
LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY
MAX9532 toc04
GROUP DELAY vs. FREQUENCY
MAX9532 toc05
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
-10 -20 -30 PSRR (dB) -40 -50 -60 -70 -80 VRIPPLE = 100mVP-P
MAX9532 toc06
1.0 0.8 0.6 0.4 GAIN (dB) 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0.1
100 80 GROUP DELAY (ns) 60 40 20 0 -20
0
VIN = 0.5VP-P -40 1 10 100 0.1
VIN = 0.5VP-P 1 10 100
-90 -100 0.1 1 10 100 FREQUENCY (MHz) FREQUENCY (MHz)
FREQUENCY (MHz) NOTE: GAIN VALUES (PLOTTED IN dB) ARE NORMALIZED VALUES RELATIVE TO THE EXPECTED VALUE OF 4V/V.
4
_______________________________________________________________________________________
MAX9532 toc03
5
DirectDrive Video Amplifier with Short-to-Battery Protection
Typical Operating Characteristics (continued)
(VDD = 3.3V, GND = CPGND = 0, video output has RL = 100 to GND, C1 = C2 = C3 = 1F, TA = +25C, unless otherwise noted.)
QUIESCENT CURRENT vs. TEMPERATURE
MAX9532 toc07
MAX9532
DC GAIN vs. TEMPERATURE
4.018 4.016 4.014 GAIN (V/V) 4.012 4.010 4.008 4.006 4.004 4.002 4.000
MAX9532 toc08
14.70 14.69 14.68 SUPPLY CURRENT (mA) 14.67 14.66 14.65 14.64 14.63 14.62 14.61 14.60 14.59 -40 10 60 110 TEMPERATURE (C) VSS = 3.3V VIN = 0V NO LOAD
4.020
-40
10
60
110
TEMPERATURE (C)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
DIFFERENTIAL GAIN (%)
MAX9532 toc09
DIFFERENTIAL GAIN AND PHASE
0.5 0 -0.5 -1.0 1 1.0 0.5 0 -0.5 -1.0 1 2 3 4 5 f = 3.58MHz TA = +25C 6 7 2 3 4 5 f = 3.58MHz TA = +25C 6 7
MAX9532 toc10
3 OUTPUT VOLTAGE (V) 2 1 0 -1 -2
AV = 4.012V/V
1.0
-0.2
0
0.2
0.4
0.6
0.8
1.0
INPUT VOLTAGE (V)
DIFFERENTIAL PHASE (deg)
DIFFERENTIAL PHASE
DIFFERENTIAL GAIN AND PHASE
DIFFERENTIAL GAIN (%) 0.5 0 -0.5 -1.0 1 1.0 0.5 0 -0.5 -1.0 1 2 3 4 5 f = 4.43MHz TA = +25C 6 7 2 3 4 5 6 7 f = 4.43MHz TA = +25C
MAX9532 toc11
2T RESPONSE
MAX9532 toc12
1.0
VIN 100mV/div
DIFFERENTIAL PHASE (deg)
DIFFERENTIAL PHASE
VOUT 400mV/div
100ns/div
_______________________________________________________________________________________
5
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
Typical Operating Characteristics (continued)
(VDD = 3.3V, GND = CPGND = 0, video output has RL = 100 to GND, C1 = C2 = C3 = 1F, TA = +25C, unless otherwise noted.)
2T RESPONSE
MAX9532 toc13
VIDEO TEST SIGNAL
MAX9532 toc14
FIELD SQUARE-WAVE RESPONSE
MAX9532 toc15
VIN 100mV/div
VIN 200mV/div
VIN 200mV/div
VOUT 400mV/div
VOUT 800mV/div
VOUT 800mV/div
400ns/div
10s/div
2ms/div
OUTPUT SHORT-TO-BATTERY RESPONSE
MAX9532 toc16
OUTPUT SHORT-TO-BATTERY RESPONSE
MAX9532 toc17
VJACKSENSE 10V/div 0V
VJACKSENSE 10V/div 0V
VOUT 500mV/div 0V
VOUT 500mV/div 0V
100s/div
2ms/div
6
_______________________________________________________________________________________
DirectDrive Video Amplifier with Short-to-Battery Protection
Pin Description
PIN 1 2 3 4 5 6 7 8 9 10 NAME VDD C1P CPGND C1N CPVSS VSS OUT GND IN FUNCTION Positive Power Supply. Bypass VDD with a 1F capacitor to GND. Charge-Pump Flying Capacitor Positive Terminal. Connect a 1F ceramic capacitor from C1P to C1N. Charge-Pump Ground. Connect to GND. Charge-Pump Flying Capacitor Negative Terminal. Connect a 1F ceramic capacitor from C1P to C1N. Charge-Pump Negative Power Supply. Bypass CPVSS with a 1F ceramic capacitor in parallel with a 10nF low ESL capacitor to GND. Negative Power Supply. Connect VSS to CPVSS. Video Output Ground Video Input
MAX9532
JACKSENSE Jack-Sense Input. Connect to the video output connector after the back-termination resistor.
Detailed Description
The MAX9532 DirectDrive video amplifier with short-tobattery protection features an internal 5-pole Butterworth lowpass filter with the amplifier configured with a gain of 4. The MAX9532 accepts DC-coupled or AC-coupled full-scale input signals of 0.5V P-P . Integrated short-to-battery protection prevents the MAX9532 from being damaged when the output is short circuited to the battery in automotive applications.
unacceptable. Changing from a single series capacitor to a SAG network that requires two smaller capacitors can only reduce space and cost slightly.
DirectDrive
Background Integrated video filter amplifier circuits operate from a single supply. The positive power supply usually creates video output signals that are level-shifted above ground to keep the signal within the linear range of the output amplifier. For applications where the positive DC level is not acceptable, a series capacitor can be inserted in the output connection to eliminate the positive DC level shift. The series capacitor cannot truly level shift a video signal because the average level of the video varies with picture content. The series capacitor biases the video output signal around ground, but the actual level of the video signal can vary significantly depending upon the RC time constant and the picture content. The series capacitor creates a highpass filter. Since the lowest frequency in video is the frame rate, which is between 24Hz and 30Hz, the pole of the highpass filter is ideally an order of magnitude lower in frequency than the frame rate. Therefore, the series capacitor must be very large, typically from 220F to 3000F. For space-constrained equipment, the series capacitor is
Video Amplifier When the full-scale video signal from a video DAC is 500mV, the black level of the video signal created by the video DAC is around 150mV. The MAX9532 shifts the black level to near ground at the output so that the active video is above ground and the sync is below ground. The amplifier needs a negative supply for the output stage to remain in the linear region when driving sync below ground.
The MAX9532 includes an integrated charge pump and linear regulator to create a low-noise negative supply from the positive supply voltage. The charge pump inverts the positive supply to create a raw negative voltage that is then fed into the linear regulator filtering out the charge-pump noise.
Comparison Between DirectDrive Output and AC-Coupled Output The actual level of the video signal varies less with a DirectDrive output than with an AC-coupled output. The average video signal level changes depending upon the picture content. With an AC-coupled output, the average level changes according to the time constant formed by the series capacitor and series resistance (usually 150). For example, Figure 1 shows an ACcoupled video signal alternating between a completely black screen and a completely white screen. Notice the excursion of the video signal as the screen changes.
_______________________________________________________________________________________
7
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
INPUT 500mV/div 0V
INPUT 500mV/div
OUTPUT 500mV/div
0V
OUTPUT 1V/div
2ms/div
2ms/div
Figure 1. AC-Coupled Output
Figure 2. DirectDrive Output
With the DirectDrive amplifier, the black level is held at ground. The video signal is constrained between -0.3V to +0.7V. Figure 2 shows the video signal from a DirectDrive amplifier with the same input signal as the AC-coupled system.
prototyping and applications where the amplifier output can be directly shorted to ground. To protect the device from output short circuits to voltages higher than the supply voltage VDD, the MAX9532 utilizes an internal switch in series with the amplifier output. When the JACKSENSE input detects that the output connector of the circuit is shorted to the battery voltage (up to 18V) higher than the internal 8V threshold, an internal comparator disables the switch in 10s (typ) preventing the MAX9532 from being damaged. After the output is shorted to a battery, the output immediately resumes normal operation when the short is removed within 1ms. When the output is shorted to the battery for longer than 1ms, the output resumes normal operation 10ms after the short is removed.
Video Reconstruction Filter
The MAX9532 features an internal five-pole, Butterworth lowpass filter to condition the video signal. The reconstruction filter smoothes the steps and reduces the spikes created whenever the DAC output changes value. In the frequency domain, the steps and spikes cause images of the video signal to appear at multiples of the sampling clock frequency. The reconstruction filter typically provides 1dB passband flatness of 9.5MHz and 42dB attenuation at 27MHz.
Transparent Sync-Tip Clamp
The MAX9532 contains an integrated, transparent synctip clamp. When using a DC-coupled input, the sync-tip clamp does not affect the input signal as long as the input signal remains above ground. When using an ACcoupled input, the sync-tip clamp automatically clamps the input signal to ground, preventing the input signal from going lower. A low current of 2A pulls down on the input to prevent an AC-coupled signal from drifting outside the input range of the device.
Applications
Power Consumption
Quiescent power consumption is defined when the MAX9532 is operating without load. In this case, the MAX9532 consumes about 47.355mW. Average power consumption, when the MAX9532 drives a 100 and 150 load to ground with a 50% flat field, is about 51.596mW and 49.513mW, respectively. Table 1 shows the power consumption with different video signals. Notice that the two extremes in power consumption occur with a video signal that is all black and a video signal that is all white. The power consumption with 75% color bars and 50% flat field lies in between the extremes.
Short-Circuit and Short-to-Battery Protection
The MAX9532 typical operating circuit includes a 50 or 75 back-termination resistor that limits short-circuit current when an external short is applied to the video output. The MAX9532 also features an internal output short-circuit protection to prevent device damage in
8
_______________________________________________________________________________________
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
IMAGE PROCESSOR ASIC 0V TO 1V DAC 150 LPF 2V/V 2VP-P DAC 75 GENERIC 2V/V CONFIGURATION IMAGE PROCESSOR ASIC 0V TO 0.5V LPF 4V/V 2VP-P
MAX9532
Figure 3. Typically, a Video DAC Generates a 1VP-P Signal Across a 150 Resistor Connected to Ground
Figure 4. Video DAC Generates a 0.5VP-P Signal Across a 75 Resistor Connected to Ground
Table 1. Power Consumption of the MAX9532 with Different Video Signals
VIDEO SIGNAL All Black Screen All White Screen 75% Color Bars 50% Flat Field MAX9532 POWER CONSUMPTION (mW) WITH 150 LOAD 51.236 57.077 53.074 49.513 MAX9532 POWER CONSUMPTION (mW) WITH 100 LOAD 53.978 65.399 57.486 51.596
Note: The supply voltage is 3.3V.
Interfacing to Video DACs that Produce Video Signals Higher than 0.5VP-P
Devices designed to generate 1VP-P video signals at the output of the video DAC can work with the MAX9532. Most video DACs source current into a ground-referenced resistor, which converts the current into a voltage. Figure 3 shows a video DAC that creates a video signal from 0V to 1V across a 150 resistor. With a gain of 2V/V, the following video filter produces a 2VP-P output. The MAX9532 accepts input signals that are 0.5VP-P nominally. The video DAC in Figure 3 can be made to work with the MAX9532 by scaling down the 150 resistor to a 75 resistor, as shown in Figure 4. The 75 resistor is one-half the size of the 150 resistor, resulting in a video signal that is one-half the amplitude.
DACs are current-mode, the output currents sum together into the resistor, which converts the resulting current into a voltage representing a composite video signal. When the chroma DAC is connected to an independent output resistor to ground, the chroma signal, which is a carrier at 3.58MHz for NTSC or at 4.43MHz for PAL, generates a positive DC bias to keep the signal above ground at all times. When the luma DAC is connected to an independent output resistor to ground, the luma signal usually does not have a positive DC bias, and the sync tip is at approximately ground. When the chroma and luma signals are added together, the resulting composite video signal generates a positive DC bias. Therefore, the signal must be AC-coupled into the MAX9532 because the composite video signal is above the nominal 0V to 0.7V DC-coupled input range.
Video Source with a Positive DC Bias
In some applications, the video source generates a signal with a positive DC voltage bias, i.e., the sync tip of the signal is well above ground. Figure 5 shows an example in which the outputs of the luma (Y) DAC and the chroma (C) DAC are connected together. Since the
Video Signal Routing
Minimize the length of the PCB trace between the output of the video DAC and the input of the MAX9532 to reduce coupling of external noise into the video signal. If possible, shield the PCB trace.
_______________________________________________________________________________________
9
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
VDD VIDEO ASIC DAC Y IN LPF 0.1F DAC C 3.3V VDD C3 1F GND CLAMP DC LEVEL SHIFT AV = 4V/V
MAX9532
JACKSENSE OUT
AMP
50 50 LINEAR REGULATOR
CHARGE PUMP CPGND C1P C1N CPVSS VSS C2 1F || 10nF
Figure 5. Luma (Y) and Chroma (C) Signals are Added Together to Create a Composite Video Signal, Which is AC-Coupled into the MAX9532
Power-Supply Bypassing and Ground Management
The MAX9532 operates from a 3V to 3.6V single supply and requires proper layout and bypassing. For the best performance, place the components as close as possible to the device. Proper grounding improves performance and prevents any switching noise from coupling into the video signal.
Bypass the analog supply (VDD) with a 1F capacitor to GND, placed as close as possible to the device. Bypass CPVSS to GND with a 1F ceramic capacitor in parallel with a 10nF low-ESR capacitor. The bypass capacitors should be placed as close as possible to the device.
10
______________________________________________________________________________________
DirectDrive Video Amplifier with Short-to-Battery Protection
Functional Diagram/Typical Application Circuits (DC-Coupled Input/Inactive Input Clamp)
MAX9532
VDD VIDEO ASIC AV = 4V/V IN LPF 3.3V VDD C3 1F GND
MAX9532
JACKSENSE OUT
DAC
AMP
50 50
TRANSPARENT CLAMP
DC LEVEL SHIFT
LINEAR REGULATOR
CHARGE PUMP CPGND C1P C1N C1 1F CPVSS VSS C2 1F || 10nF
Pin Configuration
PROCESS: BiCMOS
TOP VIEW
+ VDD 1 C1P CPGND C1N CPVSS 2 3 4 5 10 IN 9 GND JACKSENSE OUT VSS
Chip Information
MAX9532
8 7 6
MAX
______________________________________________________________________________________
11
DirectDrive Video Amplifier with Short-to-Battery Protection MAX9532
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE 10 MAX PACKAGE CODE U10+2 DOCUMENT NO. 21-0061
10LUMAX.EPS
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 (c) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.


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