MAX9657/MAX9658 19-4453 Rev 0 2/09 Quad Video (Filter) Amplifiers with Input Sync-Tip Clamps General Description Features The MAX9657 is a small, low-power, quad video ampli- Quad Channel fier with input sync-tip clamps. It features a bandwidth 9.5MHz, 1dB Passband (MAX9658) of 15MHz, making it suitable for not only standard-defi- nition video signals, but also video graphics array 47dB Attenuation at 27MHz (MAX9658) (VGA) signals with a 640 x 480 resolution at up to 85Hz Fixed Gain of 2V/V refresh rate. The MAX9658 is a quad video amplifier with integrated Low Power: 21mA lowpass filters and input sync-tip clamps. The lowpass 2.7V to 3.6V Single-Supply Operation filters typically have 1dB passband flatness out to 9.5MHz and 47dB attenuation at 27MHz. Specially suit- ed for composite video signals, the MAX9658 is ideal Ordering Information for performing anti-alias filtering at the inputs of a digital STANDARD-DEFINITION video recorder or for performing reconstruction filtering PART PIN-PACKAGE VIDEO FILTER at the outputs of a SCART set-top box. MAX9657AEE+ 16 QSOP No Both devices require that the incoming video signals be AC-coupled to the inputs. The input sync-tip clamps set MAX9658AEE+ 16 QSOP Yes the internal DC level of the video signals. Note: All devices are specified over the -40C to +125C oper- The amplifiers have 2V/V gain, and the outputs can be ating temperature range. DC-coupled to a 75 load, which is the equivalent of +Denotes a lead(Pb)-free/RoHS-compliant package. two video loads, or AC-coupled to a 150 load. Both the MAX9657/MAX9658 feature a low-power shut- down mode, in which supply current is reduced to Functional Diagram 35A. The MAX9657/MAX9658 operate from a single 2.7V to 3.6V supply, are specified over the -40C to +125C automotive temperature range, and are offered in a MAX9657/MAX9658 small, 16-pin QSOP package. SHDN UNKNOWN BIAS 300mV Applications IN0 OUT0 LPF* Set-Top Boxes A = 2V/V V CLAMPREF Digital Video Recorders IN1 OUT1 LPF* A = 2V/V V CLAMPREF IN2 OUT2 LPF* A = 2V/V V CLAMPREF Typical Application Circuits and Pin Configuration appear at end of data sheet. IN3 OUT3 LPF* A = 2V/V V CLAMPREF GND *LOWPASS FILTER IN MAX9658 ONLY. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Quad Video (Filter) Amplifiers with Input Sync-Tip Clamps ABSOLUTE MAXIMUM RATINGS Supply Voltage Continuous Power Dissipation (T = +70C) A V to GND..........................................................-0.3V to +4V 16-Pin QSOP (derate 8.3mW/C above +70C)...........667mW DD Input Pins, SHDN .....................................(GND - 0.3V) to +4V Operating Temperature Range .........................-40C to +125C Duration of Output Short Circuit to V or GND ........Continuous Junction Temperature......................................................+150C DD Continuous Input Current Storage Temperature Range .............................-65C to +150C Input Pins......................................................................20mA 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 (V = 3.3V, V = 0V, V = V , R = 150 to GND, T = T to T , unless otherwise noted. Typical values are at DD GND SHDN DD L A MIN MAX T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V Guaranteed by power-supply rejection test 2.7 3.3 3.6 V DD Quiescent Supply Current I No load 21 45 mA DD Shutdown Supply Current I SHDN = GND 35 70 A SHDN Sync-Tip Clamp Level V 0.23 0.3 0.39 V CLP 2.7V V DD 1.05 3.6V Guaranteed by output- Input Voltage Range V P-P voltage swing 3.0V V DD 1.2 3.6V Sync-tip clamp percentage reduction in Sync Crush sync pulse (0.3V ) guaranteed by input 2% P-P clamping current measurement Input Clamping Current 12 A Maximum Input Source 300 Resistance V = 2.7V, DD 1.96 2 2.04 0V V 1.05V IN R = 150 to GND L DC Voltage Gain (Note 2) A V/V V (Note 2) V = 3V, DD 1.96 2 2.04 0V V 1.2V IN DC Gain Mismatch Guaranteed by DC voltage gain -2 +2 % Output Level Measured at V , C = 0.1F to GND 0.218 0.3 0.39 V OUT IN Measured at output, V = 2.7V, V = DD IN 2.1 V to (V +1.05V), R = 150 to -0.2V CLP CLP L Measured at output, V = 2.7V, V = DD IN 2.1 V to (V +1.05V), R = 150 to V /2 CLP CLP L DD Measured at output, V = 3.0V, V = DD IN Output-Voltage Swing 2.4 V P-P V to (V +1.2V), R = 150 to -0.2V CLP CLP L Measured at output, V = 3.0V, V = DD IN 2.4 V to (V +1.2V), R = 150 to V /2 CLP CLP L DD Measured at output, V = 3.135V, V = DD IN 2.1 V to (V +1.05V), R = 75 to -0.2V CLP CLP L 2 MAX9657/MAX9658