spt9401 triple video driver with rgb output features ? triple video line driver chip with rgb inputs ?r l =150 w (75 w back-terminated cable) ? internal feedback and bias circuitry ? power-down standby mode ? very small 5.0 x 4.4 mm package ? low power dissipation: 130 mw ?1 v p-p input range, 6 db voltage gain ? flat response f in = 100 khz to 10 mhz (typical) ? crosstalk -35 db (typical) ? single +5 volt power supply applications ? rgb video line driver applications ? video line driver for rgb encoders ? digital video tape recorders ? video cassette recorders ? pc multimedia ? consumer video general description the spt9401 is a triple video line driver chip that takes standard rgb (red, green and blue) analog inputs and provides rgb analog outputs for driving 150 w loads (75 w back-terminated cables). the standard rgb input signals (1 v p-p ) are each internally biased at 2.3 v and amplified 6 db to produce a 2 v p-p into an ac-coupled 150 w load. the spt9401 features a standby mode which draws only 113 m w of power. nominal power dissipation (no input) is typically 130 mw. it requires a single +5 v supply, operates over the commercial temperature range (0 to +70 c) and is available in a very small (5.0 x 4.4 mm) 12-lead shrink small outline package (ssop). block diagram bias driver bias 100 k w 5 k w 5 k w r input r output 2.0 v p-p driver bias 100 k w 5 k w 5 k w g input g output 2.0 v p-p driver 100 k w 5 k w 5 k w b input b output 2.0 v p-p standby gnd +v cc signal processing technologies, inc. 4755 forge road, colorado springs, colorado 80907, usa phone: (719) 528-2300 fax: (719) 528-2370
spt 2 8/24/98 spt9401 electrical specifications t a = +25 c, v cc = +5.0 v, v in = 1.0 v p-p video signal, r l = 150 w , unless otherwise specified. test test spt9401 parameters conditions level min typ max units power supply supply current (i cc ) no input i 26.0 35.0 ma v cc voltage iv 4.5 5.0 5.5 v power dissipation i 130 175 mw standby current pin 5 grounded i 22.5 50.0 m a standby power dissipation pin 5 grounded i 113 m w digital input digital input (low) standby pin 5 i 0.0 0.1 0.3 v digital input (high) standby pin 5 i 1.8 2.0 v cc v bias voltages bias voltage input pins 2,4,6 i 2.0 2.3 2.6 v dynamic performance voltage gain i 5.4 5.9 6.4 db total harmonic distortion f in = 1 khz i 0.2 1.0 % frequency response f in = 0.1 to 10 mhz v -0.5 db cross talk f in = 1 mhz v -35 db absolute maximum ratings (beyond which damage may occur) (1) 25 c supply voltages v cc ....................................................................... +6.0 v maximum power dissipation p d .................................................................................... 350 mw thermal impedance (t a =+25 c and above) q ca ............................................................................ 2.8 mw/ c temperature operating temperature ................................. 0 to +70 c storage temperature ................................ -55 to +150 c note: 1. operation at any absolute maximum rating is not implied. see electrical specifications for proper nominal applied conditions in typical applications. test procedure 100% production tested at the specified temperature. 100% production tested at t a = +25 c, and sample tested at the specified temperatures. qa sample tested only at the specified temperatures. parameter is guaranteed (but not tested) by design and characterization data. parameter is a typical value for information purposes only. 100% production tested at t a = +25 c. parameter is guaranteed over specified temperature range. test level i ii iii iv v vi test level codes all electrical characteristics are subject to the following conditions: all parameters having min/max specifications are guar- anteed. the test level column indicates the specific device testing actually performed during production and quality assurance inspection. any blank section in the data column indicates that the specification is not tested at the specified condition.
spt 3 8/24/98 spt9401 figure 1 - typical interface circuit package outline 12-lead ssop inches millimeters symbol min max min max a 0.165 0.181 4.2 4.6 b 0.189 0.205 4.8 5.2 c 0.012 typ 0.3 typ d 0.031 typ 0.8 typ e 0.000 0.008 0.0 0.2 f 0.047 0.063 1.2 1.6 g 0.067 max 1.7 max h 0.264 0.248 6.7 6.3 i 0.004 0.010 0.10 0.25 j 0-10 0-10 k 0.012 0.028 0.3 0.7 l 0.047 typ 1.2 typ m 0.016 typ 0.4 typ n 0.031 typ 0.8 typ o 0.213 typ 5.4 typ a b c d e fg h i j k a a aa aa aa aa a a a a aa aa a a aa aa aa aa a a a a aa aa suggested pad layout l o n m + + 2.5 v bias driver 2.5 v bias 100 k w 5 k w 5 k w + 47 f 4.7 f 75 w r input driver 2.5 v bias 100 k w 5 k w 5 k w + 47 f 4.7 f 75 w g input driver 100 k w 5 k w 5 k w + 47 f 4.7 f 75 w b input standby + 2 4 6 53 7 8 10 12 r output g output b output 75 w 75 w 75 w 1119 + 0.01 f + 33 f v cc = 5.0 v 75 w 75 w 75 w
spt 4 8/24/98 spt9401 pin assignments pin functions name function r in red (r) signal input (typically 1 v p-p , ac coupled) g in green (g) signal input (typically 1 v p-p , ac coupled) b in blue (b) signal input (typically 1 v p-p , ac coupled) r out red (r) output (typically 2.0 v p-p , r l = 150 w , ac coupled) g out green (g) output (typically 2.0 v p-p , r l = 150 w , ac coupled) b out blue (b) output (typically 2.0 v p-p , r l = 150 w , ac coupled) standby power down standby mode select (low = standby, internal pull-up) v cc +5.0 v supply gnd ground ordering information part number temperature range package type spt9401scr 0 to +70 c 12-lead ssop signal processing technologies, inc. reserves the right to change products and specifications without notice. permission is her eby expressly granted to copy this literature for informational purposes only. copying this material for any other use is strictly prohibited . warning - life support applications policy - spt products should not be used within life support systems without the specific written consent of spt. a life support system is a product or system intended to support or sustain life which, if it fails, ca n be reasonably expected to result in significant personal injury or death. signal processing technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device failure. it is therefore not recommended, and exposure of a device to such a process will void the product warranty. r out v cc g ou t v cc b out gnd v cc r in gnd g in standby b in 1 2 3 4 5 6 12 11 10 9 8 7
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